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, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
31 * Lustre wire protocol definitions.
34 /** \defgroup lustreidl lustreidl
36 * Lustre wire protocol definitions.
38 * ALL structs passing over the wire should be declared here. Structs
39 * that are used in interfaces with userspace should go in lustre_user.h.
41 * All structs being declared here should be built from simple fixed-size
42 * types defined in linux/types.h or be built from other types or
43 * structs also declared in this file. Similarly, all flags and magic
44 * values in those structs should also be declared here. This ensures
45 * that the Lustre wire protocol is not influenced by external dependencies.
47 * The only other acceptable items in this file are VERY SIMPLE accessor
48 * functions to avoid callers grubbing inside the structures. Nothing that
49 * depends on external functions or definitions should be in here.
51 * Structs must be properly aligned to put 64-bit values on an 8-byte
52 * boundary. Any structs being added here must also be added to
53 * utils/wirecheck.c and "make newwiretest" run to regenerate the
54 * utils/wiretest.c sources. This allows us to verify that wire structs
55 * have the proper alignment/size on all architectures.
57 * DO NOT CHANGE any of the structs, flags, values declared here and used
58 * in released Lustre versions. Some structs may have padding fields that
59 * can be used. Some structs might allow addition at the end (verify this
60 * in the code to ensure that new/old clients that see this larger struct
61 * do not fail, otherwise you need to implement protocol compatibility).
66 #ifndef _LUSTRE_IDL_H_
67 #define _LUSTRE_IDL_H_
69 #include <asm/byteorder.h>
70 #include <linux/errno.h>
71 #include <linux/fiemap.h>
72 #include <linux/types.h>
73 #include <linux/lnet/lnet-types.h>
74 #include <linux/lustre/lustre_user.h>
75 #include <linux/lustre/lustre_ver.h>
77 #if defined(__cplusplus)
84 /* FOO_REQUEST_PORTAL is for incoming requests on the FOO
85 * FOO_REPLY_PORTAL is for incoming replies on the FOO
86 * FOO_BULK_PORTAL is for incoming bulk on the FOO
89 #define CONNMGR_REQUEST_PORTAL 1
90 #define CONNMGR_REPLY_PORTAL 2
91 #define OSC_REPLY_PORTAL 4
92 #define OST_IO_PORTAL 6
93 #define OST_CREATE_PORTAL 7
94 #define OST_BULK_PORTAL 8
95 #define MDC_REPLY_PORTAL 10
96 #define MDS_REQUEST_PORTAL 12
97 #define MDS_IO_PORTAL 13
98 #define MDS_BULK_PORTAL 14
99 #define LDLM_CB_REQUEST_PORTAL 15
100 #define LDLM_CB_REPLY_PORTAL 16
101 #define LDLM_CANCEL_REQUEST_PORTAL 17
102 #define LDLM_CANCEL_REPLY_PORTAL 18
103 /* #define MDS_SETATTR_PORTAL 22 obsolete after 2.13 */
104 #define MDS_READPAGE_PORTAL 23
105 #define OUT_PORTAL 24
106 #define MGC_REPLY_PORTAL 25
107 #define MGS_REQUEST_PORTAL 26
108 #define MGS_REPLY_PORTAL 27
109 #define OST_REQUEST_PORTAL 28
110 #define FLD_REQUEST_PORTAL 29
111 #define SEQ_METADATA_PORTAL 30
112 #define SEQ_DATA_PORTAL 31
113 #define SEQ_CONTROLLER_PORTAL 32
114 #define MGS_BULK_PORTAL 33
115 /* #define DVS_PORTAL 63 */
116 /* reserved for Cray DVS - spitzcor@cray.com, roe@cray.com, n8851@cray.com */
119 * Describes a range of sequence, lsr_start is included but lsr_end is
121 * Same structure is used in fld module where lsr_index field holds mdt id
124 struct lu_seq_range {
131 struct lu_seq_range_array {
134 struct lu_seq_range lsra_lsr[0];
137 #define LU_SEQ_RANGE_MDT 0x0
138 #define LU_SEQ_RANGE_OST 0x1
139 #define LU_SEQ_RANGE_ANY 0x3
141 #define LU_SEQ_RANGE_MASK 0x3
143 /** \defgroup lu_fid lu_fid
146 extern void lustre_lma_swab(struct lustre_mdt_attrs *lma);
147 extern void lustre_lma_init(struct lustre_mdt_attrs *lma,
148 const struct lu_fid *fid,
149 __u32 compat, __u32 incompat);
150 extern void lustre_loa_swab(struct lustre_ost_attrs *loa,
152 extern void lustre_loa_init(struct lustre_ost_attrs *loa,
153 const struct lu_fid *fid,
154 __u32 compat, __u32 incompat);
156 /* copytool can use any nonnegative integer to represent archive-Ids during
157 * register with MDT thru kuc.
158 * archive num = 0 => all
159 * archive num from 1 to MAX_U32
161 #define LL_HSM_ORIGIN_MAX_ARCHIVE (sizeof(__u32) * 8)
162 /* the max count of archive ids that one agent can support */
163 #define LL_HSM_MAX_ARCHIVES_PER_AGENT 1024
166 * HSM on-disk attributes stored in a separate xattr.
169 /** Bitfield for supported data in this structure. For future use. */
172 /** HSM flags, see hsm_flags enum below */
174 /** backend archive id associated with the file */
176 /** version associated with the last archiving, if any */
179 extern void lustre_hsm_swab(struct hsm_attrs *attrs);
185 /** LASTID file has zero OID */
186 LUSTRE_FID_LASTID_OID = 0UL,
187 /** initial fid id value */
188 LUSTRE_FID_INIT_OID = 1UL
192 * Different FID Format
193 * http://arch.lustre.org/index.php?title=Interoperability_fids_zfs#NEW.0
196 * File IDentifier generated by client from range allocated by the seq service.
197 * First 0x400 sequences [2^33, 2^33 + 0x400] are reserved for system use. Note
198 * that on ldiskfs MDTs that IGIF FIDs can use inode numbers starting at 12,
199 * but this is in the IGIF SEQ rangeand does not conflict with assigned FIDs.
202 * Inode and Generation In FID, a surrogate FID used to globally identify an
203 * existing object on OLD formatted MDT file system. This would only be used on
204 * MDT0 in a DNE filesystem, because there are not expected to be any OLD
205 * formatted DNE filesystems. Belongs to a sequence in [12, 2^32 - 1] range,
206 * where sequence number is inode number, and inode generation is used as OID.
207 * NOTE: This assumes no more than 2^32-1 inodes exist in the MDT filesystem,
208 * which is the maximum possible for an ldiskfs backend. NOTE: This assumes
209 * that the reserved ext3/ext4/ldiskfs inode numbers [0-11] are never visible
210 * to clients, which has always been true.
213 * Object ID in FID, a surrogate FID used to globally identify an existing
214 * object on OLD formatted OST file system. Belongs to a sequence in
215 * [2^32, 2^33 - 1]. Sequence number is calculated as:
216 * 1 << 32 | (ost_index << 16) | ((objid >> 32) & 0xffff)
217 * that is, SEQ consists of 16-bit OST index, and higher 16 bits of object ID.
218 * The generation of unique SEQ values per OST allows the IDIF FIDs to be
219 * identified in the FLD correctly. The OID field is calculated as:
221 * that is, it consists of lower 32 bits of object ID. NOTE This assumes that
222 * no more than 2^48-1 objects have ever been created on an OST, and that no
223 * more than 65535 OSTs are in use. Both are very reasonable assumptions (can
224 * uniquely map all objects on an OST that created 1M objects per second for 9
225 * years, or combinations thereof).
228 * Surrogate FID used to identify an existing object on OLD formatted OST
229 * filesystem. Belongs to the reserved sequence 0, and is used internally prior
230 * to the introduction of FID-on-OST, at which point IDIF will be used to
231 * identify objects as residing on a specific OST.
234 * For Lustre Log objects the object sequence 1 is used. This is compatible with
235 * both OLD and NEW.1 namespaces, as this SEQ number is in the ext3/ldiskfs
236 * reserved inode range and does not conflict with IGIF sequence numbers.
239 * For testing OST IO performance the object sequence 2 is used. This is
240 * compatible with both OLD and NEW.1 namespaces, as this SEQ number is in the
241 * ext3/ldiskfs reserved inode range and does not conflict with IGIF sequence
244 * OST_MDT1 .. OST_MAX:
245 * For testing with multiple MDTs the object sequence 3 through 9 is used,
246 * allowing direct mapping of MDTs 1 through 7 respectively, for a total of 8
247 * MDTs including OST_MDT0. This matches the legacy CMD project "group"
248 * mappings. However, this SEQ range is only for testing prior to any production
249 * DNE release, as the objects in this range conflict across all OSTs, as the
250 * OST index is not part of the FID.
253 * For compatibility with existing OLD OST network protocol structures, the FID
254 * must map onto the o_id and o_gr in a manner that ensures existing objects are
255 * identified consistently for IO, as well as onto the lock namespace to ensure
256 * both IDIFs map onto the same objects for IO as well as resources in the DLM.
259 * resource[] = {o_id, o_seq, 0, 0}; // o_seq == 0 for production releases
261 * DLM NEW.1 FID (this is the same for both the MDT and OST):
262 * resource[] = {SEQ, OID, VER, HASH};
264 * Note that for mapping IDIF values to DLM resource names the o_id may be
265 * larger than the 2^33 reserved sequence numbers for IDIF, so it is possible
266 * for the o_id numbers to overlap FID SEQ numbers in the resource. However, in
267 * all production releases the OLD o_seq field is always zero, and all valid FID
268 * OID values are non-zero, so the lock resources will not collide.
270 * For objects within the IDIF range, group extraction (non-CMD) will be:
271 * o_id = (fid->f_seq & 0x7fff) << 16 | fid->f_oid;
272 * o_seq = 0; // formerly group number
276 * Note that reserved SEQ numbers below 12 will conflict with ldiskfs
277 * inodes in the IGIF namespace, so these reserved SEQ numbers can be
278 * used for other purposes and not risk collisions with existing inodes.
281 FID_SEQ_OST_MDT0 = 0,
282 FID_SEQ_LLOG = 1, /* unnamed llogs */
284 FID_SEQ_UNUSED_START = 3, /* Unused */
285 FID_SEQ_UNUSED_END = 9, /* Unused */
286 FID_SEQ_LLOG_NAME = 10, /* named llogs */
289 FID_SEQ_IGIF_MAX = 0x0ffffffffULL,
290 FID_SEQ_IDIF = 0x100000000ULL,
291 FID_SEQ_IDIF_MAX = 0x1ffffffffULL,
292 /* Normal FID sequence starts from this value, i.e. 1<<33 */
293 FID_SEQ_START = 0x200000000ULL,
294 /* sequence for local pre-defined FIDs listed in local_oid */
295 FID_SEQ_LOCAL_FILE = 0x200000001ULL,
296 FID_SEQ_DOT_LUSTRE = 0x200000002ULL,
297 /* sequence is used for local named objects FIDs generated
298 * by local_object_storage library */
299 FID_SEQ_LOCAL_NAME = 0x200000003ULL,
300 /* Because current FLD will only cache the fid sequence, instead
301 * of oid on the client side, if the FID needs to be exposed to
302 * clients sides, it needs to make sure all of fids under one
303 * sequence will be located in one MDT. */
304 FID_SEQ_SPECIAL = 0x200000004ULL,
305 FID_SEQ_QUOTA = 0x200000005ULL,
306 FID_SEQ_QUOTA_GLB = 0x200000006ULL,
307 FID_SEQ_ROOT = 0x200000007ULL, /* Located on MDT0 */
308 FID_SEQ_LAYOUT_RBTREE = 0x200000008ULL,
309 /* sequence is used for update logs of cross-MDT operation */
310 FID_SEQ_UPDATE_LOG = 0x200000009ULL,
311 /* Sequence is used for the directory under which update logs
313 FID_SEQ_UPDATE_LOG_DIR = 0x20000000aULL,
314 FID_SEQ_NORMAL = 0x200000400ULL,
315 FID_SEQ_LOV_DEFAULT = 0xffffffffffffffffULL
318 #define OBIF_OID_MAX_BITS 32
319 #define OBIF_MAX_OID (1ULL << OBIF_OID_MAX_BITS)
320 #define OBIF_OID_MASK ((1ULL << OBIF_OID_MAX_BITS) - 1)
321 #define IDIF_OID_MAX_BITS 48
322 #define IDIF_MAX_OID (1ULL << IDIF_OID_MAX_BITS)
323 #define IDIF_OID_MASK ((1ULL << IDIF_OID_MAX_BITS) - 1)
325 /** OID for FID_SEQ_SPECIAL */
327 /* Big Filesystem Lock to serialize rename operations */
328 FID_OID_SPECIAL_BFL = 1UL,
331 /** OID for FID_SEQ_DOT_LUSTRE */
332 enum dot_lustre_oid {
333 FID_OID_DOT_LUSTRE = 1UL,
334 FID_OID_DOT_LUSTRE_OBF = 2UL,
335 FID_OID_DOT_LUSTRE_LPF = 3UL,
338 /** OID for FID_SEQ_ROOT */
341 FID_OID_ECHO_ROOT = 2UL,
344 struct lu_orphan_rec {
345 /* The MDT-object's FID referenced by the orphan OST-object */
346 struct lu_fid lor_fid;
351 struct lu_orphan_ent {
352 /* The orphan OST-object's FID */
353 struct lu_fid loe_key;
354 struct lu_orphan_rec loe_rec;
357 struct lu_orphan_rec_v2 {
358 struct lu_orphan_rec lor_rec;
359 struct ost_layout lor_layout;
363 struct lu_orphan_ent_v2 {
364 /* The orphan OST-object's FID */
365 struct lu_fid loe_key;
366 struct lu_orphan_rec_v2 loe_rec;
369 struct lu_orphan_rec_v3 {
370 struct lu_orphan_rec lor_rec;
371 struct ost_layout lor_layout;
372 /* The OST-object declared layout version in PFID EA.*/
373 __u32 lor_layout_version;
374 /* The OST-object declared layout range (of version) in PFID EA.*/
380 struct lu_orphan_ent_v3 {
381 /* The orphan OST-object's FID */
382 struct lu_fid loe_key;
383 struct lu_orphan_rec_v3 loe_rec;
388 /** \defgroup lu_dir lu_dir
392 * Enumeration of possible directory entry attributes.
394 * Attributes follow directory entry header in the order they appear in this
397 enum lu_dirent_attrs {
400 LUDA_64BITHASH = 0x0004,
402 /* The following attrs are used for MDT internal only,
403 * not visible to client */
405 /* Something in the record is unknown, to be verified in further. */
406 LUDA_UNKNOWN = 0x0400,
407 /* Ignore this record, go to next directly. */
408 LUDA_IGNORE = 0x0800,
409 /* The system is upgraded, has beed or to be repaired (dryrun). */
410 LUDA_UPGRADE = 0x1000,
411 /* The dirent has been repaired, or to be repaired (dryrun). */
412 LUDA_REPAIR = 0x2000,
413 /* Only check but not repair the dirent inconsistency */
414 LUDA_VERIFY_DRYRUN = 0x4000,
415 /* Verify the dirent consistency */
416 LUDA_VERIFY = 0x8000,
419 #define LU_DIRENT_ATTRS_MASK 0xff00
422 * Layout of readdir pages, as transmitted on wire.
425 /** valid if LUDA_FID is set. */
426 struct lu_fid lde_fid;
427 /** a unique entry identifier: a hash or an offset. */
429 /** total record length, including all attributes. */
433 /** optional variable size attributes following this entry.
434 * taken from enum lu_dirent_attrs.
437 /** name is followed by the attributes indicated in ->ldp_attrs, in
438 * their natural order. After the last attribute, padding bytes are
439 * added to make ->lde_reclen a multiple of 8.
445 * Definitions of optional directory entry attributes formats.
447 * Individual attributes do not have their length encoded in a generic way. It
448 * is assumed that consumer of an attribute knows its format. This means that
449 * it is impossible to skip over an unknown attribute, except by skipping over all
450 * remaining attributes (by using ->lde_reclen), which is not too
451 * constraining, because new server versions will append new attributes at
452 * the end of an entry.
456 * Fid directory attribute: a fid of an object referenced by the entry. This
457 * will be almost always requested by the client and supplied by the server.
459 * Aligned to 8 bytes.
461 /* To have compatibility with 1.8, lets have fid in lu_dirent struct. */
466 * Aligned to 2 bytes.
473 __u64 ldp_hash_start;
477 struct lu_dirent ldp_entries[0];
480 enum lu_dirpage_flags {
482 * dirpage contains no entry.
486 * last entry's lde_hash equals ldp_hash_end.
491 static inline struct lu_dirent *lu_dirent_start(struct lu_dirpage *dp)
493 if (__le32_to_cpu(dp->ldp_flags) & LDF_EMPTY)
496 return dp->ldp_entries;
499 static inline struct lu_dirent *lu_dirent_next(struct lu_dirent *ent)
501 struct lu_dirent *next;
503 if (__le16_to_cpu(ent->lde_reclen) != 0)
504 next = ((void *)ent) + __le16_to_cpu(ent->lde_reclen);
511 static inline __kernel_size_t lu_dirent_calc_size(size_t namelen, __u16 attr)
513 __kernel_size_t size;
515 if (attr & LUDA_TYPE) {
516 const __kernel_size_t align = sizeof(struct luda_type) - 1;
518 size = (sizeof(struct lu_dirent) + namelen + 1 + align) &
520 size += sizeof(struct luda_type);
522 size = sizeof(struct lu_dirent) + namelen + 1;
525 return (size + 7) & ~7;
528 static inline __u16 lu_dirent_type_get(struct lu_dirent *ent)
531 struct luda_type *lt;
534 if (__le32_to_cpu(ent->lde_attrs) & LUDA_TYPE) {
535 const unsigned int align = sizeof(struct luda_type) - 1;
537 len = __le16_to_cpu(ent->lde_namelen);
538 len = (len + align) & ~align;
539 lt = (void *)ent->lde_name + len;
540 type = __le16_to_cpu(lt->lt_type);
546 #define MDS_DIR_END_OFF 0xfffffffffffffffeULL
549 * MDS_READPAGE page size
551 * This is the directory page size packed in MDS_READPAGE RPC.
552 * It's different than PAGE_SIZE because the client needs to
553 * access the struct lu_dirpage header packed at the beginning of
554 * the "page" and without this there isn't any way to know find the
555 * lu_dirpage header is if client and server PAGE_SIZE differ.
557 #define LU_PAGE_SHIFT 12
558 #define LU_PAGE_SIZE (1UL << LU_PAGE_SHIFT)
559 #define LU_PAGE_MASK (~(LU_PAGE_SIZE - 1))
561 #define LU_PAGE_COUNT (1 << (PAGE_SHIFT - LU_PAGE_SHIFT))
565 struct lustre_handle {
568 #define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL
570 static inline bool lustre_handle_is_used(const struct lustre_handle *lh)
572 return lh->cookie != 0;
575 static inline bool lustre_handle_equal(const struct lustre_handle *lh1,
576 const struct lustre_handle *lh2)
578 return lh1->cookie == lh2->cookie;
581 static inline void lustre_handle_copy(struct lustre_handle *tgt,
582 const struct lustre_handle *src)
584 tgt->cookie = src->cookie;
587 /* lustre_msg struct magic. DON'T use swabbed values of MAGIC as magic! */
588 enum lustre_msg_magic {
589 LUSTRE_MSG_MAGIC_V2 = 0x0BD00BD3,
590 LUSTRE_MSG_MAGIC_V2_SWABBED = 0xD30BD00B,
591 LUSTRE_MSG_MAGIC = LUSTRE_MSG_MAGIC_V2
594 /* flags for lm_flags */
596 MSGHDR_AT_SUPPORT = 0x1, /* adaptive timeouts, lm_cksum valid
597 * in early reply messages */
598 MSGHDR_CKSUM_INCOMPAT18 = 0x2, /* compat for 1.8, needs to be set well
599 * beyond 2.8.0 for compatibility */
602 #define lustre_msg lustre_msg_v2
603 /* we depend on this structure to be 8-byte aligned */
604 /* this type is only endian-adjusted in lustre_unpack_msg() */
605 struct lustre_msg_v2 {
606 __u32 lm_bufcount; /* number of buffers in lm_buflens[] */
607 __u32 lm_secflvr; /* 0 = no crypto, or sptlrpc security flavour */
608 __u32 lm_magic; /* RPC version magic = LUSTRE_MSG_MAGIC_V2 */
609 __u32 lm_repsize; /* size of preallocated reply buffer */
610 __u32 lm_cksum; /* CRC32 of ptlrpc_body early reply messages */
611 __u32 lm_flags; /* enum lustre_msghdr MSGHDR_* flags */
612 __u32 lm_opc; /* SUB request opcode in a batch request */
613 __u32 lm_padding_3; /* unused */
614 __u32 lm_buflens[0]; /* length of additional buffers in bytes,
615 * padded to a multiple of 8 bytes. */
617 * message buffers are packed after padded lm_buflens[] array,
618 * padded to a multiple of 8 bytes each to align contents.
622 /* The returned result of the SUB request in a batch request */
623 #define lm_result lm_opc
625 /* ptlrpc_body packet pb_types */
626 #define PTL_RPC_MSG_REQUEST 4711 /* normal RPC request message */
627 #define PTL_RPC_MSG_ERR 4712 /* error reply if request unprocessed */
628 #define PTL_RPC_MSG_REPLY 4713 /* normal RPC reply message */
630 /* ptlrpc_body pb_version ((target_version << 16) | rpc_version) */
631 enum lustre_msg_version {
632 PTLRPC_MSG_VERSION = 0x00000003,
633 LUSTRE_VERSION_MASK = 0xffff0000,
634 LUSTRE_OBD_VERSION = 0x00010000,
635 LUSTRE_MDS_VERSION = 0x00020000,
636 LUSTRE_OST_VERSION = 0x00030000,
637 LUSTRE_DLM_VERSION = 0x00040000,
638 LUSTRE_LOG_VERSION = 0x00050000,
639 LUSTRE_MGS_VERSION = 0x00060000,
642 /* pb_flags that apply to all request messages */
643 /* #define MSG_LAST_REPLAY 0x0001 obsolete 2.0 => {REQ,LOCK}_REPLAY_DONE */
644 #define MSG_RESENT 0x0002 /* was previously sent, no reply seen */
645 #define MSG_REPLAY 0x0004 /* was processed, got reply, recovery */
646 /* #define MSG_AT_SUPPORT 0x0008 obsolete since 1.5, AT always enabled */
647 /* #define MSG_DELAY_REPLAY 0x0010 obsolete since 2.0 */
648 /* #define MSG_VERSION_REPLAY 0x0020 obsolete since 1.8.2, VBR always on */
649 #define MSG_REQ_REPLAY_DONE 0x0040 /* request replay over, locks next */
650 #define MSG_LOCK_REPLAY_DONE 0x0080 /* lock replay over, client done */
652 /* pb_op_flags for connect opcodes: MDS_CONNECT, OST_CONNECT, MGS_CONNECT */
653 #define MSG_CONNECT_RECOVERING 0x00000001 /* target is in recovery */
654 #define MSG_CONNECT_RECONNECT 0x00000002 /* tgt already has client import */
655 #define MSG_CONNECT_REPLAYABLE 0x00000004 /* target supports RPC replay */
656 /* #define MSG_CONNECT_PEER 0x00000008 obsolete since 1.2, removed in 1.5 */
657 #define MSG_CONNECT_LIBCLIENT 0x00000010 /* obsolete since 2.3, removed 2.6 */
658 #define MSG_CONNECT_INITIAL 0x00000020 /* first client connection attempt */
659 /* #define MSG_CONNECT_ASYNC 0x00000040 obsolete since 1.5 */
660 #define MSG_CONNECT_NEXT_VER 0x00000080 /* use next version of lustre_msg */
661 #define MSG_CONNECT_TRANSNO 0x00000100 /* client sent transno in replay */
663 /* number of previous object versions in pb_pre_versions[] */
664 #define PTLRPC_NUM_VERSIONS 4
665 /* without gss, ptlrpc_body is put at the first buffer. */
666 struct ptlrpc_body_v3 {
667 struct lustre_handle pb_handle;
668 __u32 pb_type; /* request/reply/err type: PTL_RPC_MSG_* */
669 __u32 pb_version; /* LUSTRE_*_VERSION | PTLRPC_MSG_VERSION */
670 __u32 pb_opc; /* RPC opcodes: MDS_*, OST_*, LDLM_, ... */
671 __u32 pb_status; /* negative Linux x86 error number */
672 __u64 pb_last_xid; /* highest replied XID w/o lower unreplied XID*/
673 __u16 pb_tag; /* multiple modifying RPCs virtual slot index */
676 __u64 pb_last_committed;/* rep: highest pb_transno committed to disk */
677 __u64 pb_transno; /* server-assigned transno for modifying RPCs */
678 __u32 pb_flags; /* req: MSG_* flags */
679 __u32 pb_op_flags; /* req: MSG_CONNECT_* flags */
680 __u32 pb_conn_cnt; /* connect instance of this client on server */
681 __u32 pb_timeout; /* req: max wait time; rep: service estimate */
682 __u32 pb_service_time; /* rep: server arrival to reply in seconds */
683 __u32 pb_limit; /* rep: dynamic DLM LRU lock count limit */
684 __u64 pb_slv; /* rep: dynamic DLM LRU server lock volume */
685 /* VBR: rep: previous pb_version(s) of objects modified by this RPC */
686 __u64 pb_pre_versions[PTLRPC_NUM_VERSIONS];
687 __u64 pb_mbits; /**< match bits for bulk request */
688 /* padding for future needs - fix lustre_swab_ptlrpc_body() also */
689 __u64 pb_padding64_0;
690 __u64 pb_padding64_1;
691 __u64 pb_padding64_2;
692 char pb_jobid[LUSTRE_JOBID_SIZE]; /* req: ASCII jobid from env + NUL */
694 #define ptlrpc_body ptlrpc_body_v3
696 struct ptlrpc_body_v2 {
697 struct lustre_handle pb_handle;
702 __u64 pb_last_xid; /* highest replied XID without lower unreplied XID */
703 __u16 pb_tag; /* virtual slot idx for multiple modifying RPCs */
706 __u64 pb_last_committed;
711 __u32 pb_timeout; /* for req, the deadline, for rep, the service est */
712 __u32 pb_service_time; /* for rep, actual service time, also used for
713 net_latency of req */
716 /* VBR: pre-versions */
717 __u64 pb_pre_versions[PTLRPC_NUM_VERSIONS];
718 __u64 pb_mbits; /**< unused in V2 */
719 /* padding for future needs */
720 __u64 pb_padding64_0;
721 __u64 pb_padding64_1;
722 __u64 pb_padding64_2;
725 /* message body offset for lustre_msg_v2 */
726 /* ptlrpc body offset in all request/reply messages */
727 #define MSG_PTLRPC_BODY_OFF 0
729 /* normal request/reply message record offset */
730 #define REQ_REC_OFF 1
731 #define REPLY_REC_OFF 1
733 /* ldlm request message body offset */
734 #define DLM_LOCKREQ_OFF 1 /* lockreq offset */
735 #define DLM_REQ_REC_OFF 2 /* normal dlm request record offset */
737 /* ldlm intent lock message body offset */
738 #define DLM_INTENT_IT_OFF 2 /* intent lock it offset */
739 #define DLM_INTENT_REC_OFF 3 /* intent lock record offset */
741 /* ldlm reply message body offset */
742 #define DLM_LOCKREPLY_OFF 1 /* lockrep offset */
743 #define DLM_REPLY_REC_OFF 2 /* reply record offset */
745 /** only use in req->rq_{req,rep}_swab_mask */
746 #define MSG_PTLRPC_HEADER_OFF 31
749 #define OBD_CONNECT_RDONLY 0x1ULL /* client is read-only */
750 #define OBD_CONNECT_INDEX 0x2ULL /* connect to LOV idx */
751 #define OBD_CONNECT_MDS 0x4ULL /* connect MDT to OST */
752 #define OBD_CONNECT_GRANT 0x8ULL /* fetch grant connect */
753 #define OBD_CONNECT_SRVLOCK 0x10ULL /* server lock for RPC */
754 #define OBD_CONNECT_VERSION 0x20ULL /* versions in OCD */
755 #define OBD_CONNECT_REQPORTAL 0x40ULL /* non-IO portal */
756 #define OBD_CONNECT_ACL 0x80ULL /* access control list */
757 #define OBD_CONNECT_XATTR 0x100ULL /* extended attributes */
758 #define OBD_CONNECT_LARGE_ACL 0x200ULL /* over 32 ACL entries */
759 /* was OBD_CONNECT_TRUNCLOCK 0x400ULL * server locks punch */
760 /* temporary reuse until 2.21.53 to indicate pre-2.15 client, see LU-15478 */
761 #define OBD_CONNECT_OLD_FALLOC 0x400ULL /* no o_valid flags */
762 #define OBD_CONNECT_TRANSNO 0x800ULL /* replay send transno */
763 #define OBD_CONNECT_IBITS 0x1000ULL /* not checked 2.11+ */
764 #define OBD_CONNECT_BARRIER 0x2000ULL /* write barrier */
765 #define OBD_CONNECT_ATTRFID 0x4000ULL /* Server GetAttr FID */
766 #define OBD_CONNECT_NODEVOH 0x8000ULL /* No open handle spec */
767 #define OBD_CONNECT_RMT_CLIENT 0x10000ULL /* Never used, gone 2.9*/
768 #define OBD_CONNECT_RMT_CLIENT_FORCE 0x20000ULL /* Never used, gone 2.9*/
769 #define OBD_CONNECT_BRW_SIZE 0x40000ULL /* Max bytes per rpc */
770 #define OBD_CONNECT_QUOTA64 0x80000ULL /* Unused since 2.4 */
771 #define OBD_CONNECT_MDS_CAPA 0x100000ULL /* Unused since 2.7 */
772 #define OBD_CONNECT_OSS_CAPA 0x200000ULL /* Unused since 2.7 */
773 #define OBD_CONNECT_CANCELSET 0x400000ULL /* Early batch cancel */
774 #define OBD_CONNECT_SOM 0x800000ULL /* Unused since 2.7 */
775 #define OBD_CONNECT_AT 0x1000000ULL /* client uses AT */
776 #define OBD_CONNECT_LRU_RESIZE 0x2000000ULL /* LRU resize feature */
777 #define OBD_CONNECT_MDS_MDS 0x4000000ULL /* MDS-MDS connection */
778 #define OBD_CONNECT_REAL 0x8000000ULL /* Unused since 2.8 */
779 #define OBD_CONNECT_CHANGE_QS 0x10000000ULL /* Unused since 2.4 */
780 #define OBD_CONNECT_CKSUM 0x20000000ULL /* cksum algo choice */
781 #define OBD_CONNECT_FID 0x40000000ULL /* server handles FIDs */
782 #define OBD_CONNECT_VBR 0x80000000ULL /* version based recov */
783 #define OBD_CONNECT_LOV_V3 0x100000000ULL /* client LOV v3 EA */
784 #define OBD_CONNECT_GRANT_SHRINK 0x200000000ULL /* handle grant shrink */
785 #define OBD_CONNECT_SKIP_ORPHAN 0x400000000ULL /* no orph objid reuse */
786 #define OBD_CONNECT_MAX_EASIZE 0x800000000ULL /* EA size in reply */
787 #define OBD_CONNECT_FULL20 0x1000000000ULL /* it is 2.0 client */
788 #define OBD_CONNECT_LAYOUTLOCK 0x2000000000ULL /* client layout lock */
789 #define OBD_CONNECT_64BITHASH 0x4000000000ULL /* 64-bits dir hash */
790 #define OBD_CONNECT_MAXBYTES 0x8000000000ULL /* max stripe size */
791 #define OBD_CONNECT_IMP_RECOV 0x10000000000ULL /* imp recov support */
792 #define OBD_CONNECT_JOBSTATS 0x20000000000ULL /* ptlrpc_body jobid */
793 #define OBD_CONNECT_UMASK 0x40000000000ULL /* create client umask */
794 #define OBD_CONNECT_EINPROGRESS 0x80000000000ULL /* client -EINPROGRESS
795 * RPC error handling */
796 #define OBD_CONNECT_GRANT_PARAM 0x100000000000ULL /* extra grant params for
797 * space reservation */
798 #define OBD_CONNECT_FLOCK_OWNER 0x200000000000ULL /* unused since 2.0 */
799 #define OBD_CONNECT_LVB_TYPE 0x400000000000ULL /* variable LVB type */
800 #define OBD_CONNECT_NANOSEC_TIME 0x800000000000ULL /* nanosec timestamp */
801 #define OBD_CONNECT_LIGHTWEIGHT 0x1000000000000ULL /* lightweight connect */
802 #define OBD_CONNECT_SHORTIO 0x2000000000000ULL /* short io */
803 #define OBD_CONNECT_PINGLESS 0x4000000000000ULL /* pings not required */
804 #define OBD_CONNECT_FLOCK_DEAD 0x8000000000000ULL /* flk deadlock detect */
805 #define OBD_CONNECT_DISP_STRIPE 0x10000000000000ULL /* create stripe disp */
806 #define OBD_CONNECT_OPEN_BY_FID 0x20000000000000ULL /* open by FID won't pack
808 #define OBD_CONNECT_LFSCK 0x40000000000000ULL /* allow online LFSCK */
809 #define OBD_CONNECT_UNLINK_CLOSE 0x100000000000000ULL /* unlink closes file */
810 #define OBD_CONNECT_MULTIMODRPCS 0x200000000000000ULL /* allow multiple change
811 * RPCs in parallel */
812 #define OBD_CONNECT_DIR_STRIPE 0x400000000000000ULL /* striped DNE dir */
813 #define OBD_CONNECT_SUBTREE 0x800000000000000ULL /* fileset mount */
814 /* was OBD_CONNECT_LOCKAHEAD_OLD 0x1000000000000000ULL old lockahead 2.12-2.13*/
815 #define OBD_CONNECT_BULK_MBITS 0x2000000000000000ULL /* ptlrpc_body matchbit*/
816 #define OBD_CONNECT_OBDOPACK 0x4000000000000000ULL /* compact OUT obdo */
817 #define OBD_CONNECT_FLAGS2 0x8000000000000000ULL /* second flags word */
818 /* ocd_connect_flags2 flags */
819 #define OBD_CONNECT2_FILE_SECCTX 0x1ULL /* security context */
820 #define OBD_CONNECT2_LOCKAHEAD 0x2ULL /* ladvise lockahead */
821 #define OBD_CONNECT2_DIR_MIGRATE 0x4ULL /* migrate striped dir */
822 #define OBD_CONNECT2_SUM_STATFS 0x8ULL /* MDT aggregate statfs*/
823 #define OBD_CONNECT2_OVERSTRIPING 0x10ULL /* OST overstriping */
824 #define OBD_CONNECT2_FLR 0x20ULL /* FLR mirror handling */
825 #define OBD_CONNECT2_WBC_INTENTS 0x40ULL /* MDS wb cache intent */
826 #define OBD_CONNECT2_LOCK_CONVERT 0x80ULL /* IBITS lock convert */
827 #define OBD_CONNECT2_ARCHIVE_ID_ARRAY 0x100ULL /* HSM archive_id array*/
828 #define OBD_CONNECT2_INC_XID 0x200ULL /* Increasing xid */
829 #define OBD_CONNECT2_SELINUX_POLICY 0x400ULL /* cli SELinux policy */
830 #define OBD_CONNECT2_LSOM 0x800ULL /* Lazy Size on MDT */
831 #define OBD_CONNECT2_PCC 0x1000ULL /* Persist Client Cache*/
832 #define OBD_CONNECT2_CRUSH 0x2000ULL /* CRUSH dir hash */
833 #define OBD_CONNECT2_ASYNC_DISCARD 0x4000ULL /* async DoM discard */
834 #define OBD_CONNECT2_ENCRYPT 0x8000ULL /* client disk encrypt */
835 #define OBD_CONNECT2_FIDMAP 0x10000ULL /* MDT migrate FID map */
836 #define OBD_CONNECT2_GETATTR_PFID 0x20000ULL /* parent FID getattr */
837 #define OBD_CONNECT2_LSEEK 0x40000ULL /* SEEK_HOLE/DATA RPC */
838 #define OBD_CONNECT2_DOM_LVB 0x80000ULL /* DoM glimpse in LVB */
839 #define OBD_CONNECT2_REP_MBITS 0x100000ULL /* reply mbits, not XID*/
840 #define OBD_CONNECT2_MODE_CONVERT 0x200000ULL /* LDLM mode convert */
841 #define OBD_CONNECT2_BATCH_RPC 0x400000ULL /* Multi-op batch RPCs */
842 #define OBD_CONNECT2_PCCRO 0x800000ULL /* PCC read-only */
843 #define OBD_CONNECT2_MNE_TYPE 0x1000000ULL /* mne_nid_type IPv6 */
844 #define OBD_CONNECT2_LOCK_CONTENTION 0x2000000ULL /* contention detect */
845 #define OBD_CONNECT2_ATOMIC_OPEN_LOCK 0x4000000ULL /* lock on first open */
846 #define OBD_CONNECT2_ENCRYPT_NAME 0x8000000ULL /* name encrypt */
847 #define OBD_CONNECT2_ENCRYPT_FID2PATH 0x40000000ULL /* fid2path enc file */
848 /* XXX README XXX README XXX README XXX README XXX README XXX README XXX
849 * Please DO NOT add OBD_CONNECT flags before first ensuring that this value
850 * is not in use by some other branch/patch. Email adilger@whamcloud.com
851 * to reserve the new OBD_CONNECT value for use by your feature. Then, submit
852 * a small patch against master and LTS branches that ONLY adds the new flag,
853 * updates obd_connect_names[], adds the flag to check_obd_connect_data(),
854 * and updates wiretests accordingly, so it can be approved and landed easily
855 * to reserve the flag for future use by your feature (submitted separately).
858 #define OCD_HAS_FLAG(ocd, flag) \
859 (!!((ocd)->ocd_connect_flags & OBD_CONNECT_##flag))
860 #define OCD_HAS_FLAG2(ocd, flag2) (OCD_HAS_FLAG(ocd, FLAGS2) && \
861 !!((ocd)->ocd_connect_flags2 & OBD_CONNECT2_##flag2))
864 #ifdef HAVE_LRU_RESIZE_SUPPORT
865 #define LRU_RESIZE_CONNECT_FLAG OBD_CONNECT_LRU_RESIZE
867 #define LRU_RESIZE_CONNECT_FLAG 0
870 #define MDT_CONNECT_SUPPORTED (OBD_CONNECT_RDONLY | OBD_CONNECT_VERSION | \
871 OBD_CONNECT_ACL | OBD_CONNECT_XATTR | \
872 OBD_CONNECT_IBITS | OBD_CONNECT_NODEVOH | \
873 OBD_CONNECT_ATTRFID | OBD_CONNECT_CANCELSET | \
874 OBD_CONNECT_AT | OBD_CONNECT_BRW_SIZE | \
875 OBD_CONNECT_MDS_MDS | OBD_CONNECT_FID | \
876 LRU_RESIZE_CONNECT_FLAG | OBD_CONNECT_VBR | \
877 OBD_CONNECT_LOV_V3 | OBD_CONNECT_FULL20 | \
878 OBD_CONNECT_64BITHASH | OBD_CONNECT_JOBSTATS | \
879 OBD_CONNECT_EINPROGRESS | \
880 OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_UMASK | \
881 OBD_CONNECT_LVB_TYPE | OBD_CONNECT_LAYOUTLOCK |\
882 OBD_CONNECT_PINGLESS | OBD_CONNECT_MAX_EASIZE |\
883 OBD_CONNECT_FLOCK_DEAD | \
884 OBD_CONNECT_DISP_STRIPE | OBD_CONNECT_LFSCK | \
885 OBD_CONNECT_OPEN_BY_FID | \
886 OBD_CONNECT_DIR_STRIPE | OBD_CONNECT_GRANT | \
887 OBD_CONNECT_SRVLOCK | OBD_CONNECT_BULK_MBITS |\
889 OBD_CONNECT_MULTIMODRPCS |\
890 OBD_CONNECT_SUBTREE | OBD_CONNECT_LARGE_ACL |\
891 OBD_CONNECT_GRANT_PARAM | \
892 OBD_CONNECT_GRANT_SHRINK | \
893 OBD_CONNECT_SHORTIO | OBD_CONNECT_FLAGS2)
895 #define MDT_CONNECT_SUPPORTED2 (OBD_CONNECT2_FILE_SECCTX | \
896 OBD_CONNECT2_DIR_MIGRATE | \
897 OBD_CONNECT2_SUM_STATFS | \
898 OBD_CONNECT2_OVERSTRIPING | \
900 OBD_CONNECT2_LOCK_CONVERT | \
901 OBD_CONNECT2_ARCHIVE_ID_ARRAY | \
902 OBD_CONNECT2_INC_XID | \
903 OBD_CONNECT2_SELINUX_POLICY | \
904 OBD_CONNECT2_LSOM | \
905 OBD_CONNECT2_ASYNC_DISCARD | \
907 OBD_CONNECT2_CRUSH | \
908 OBD_CONNECT2_ENCRYPT | \
909 OBD_CONNECT2_GETATTR_PFID |\
910 OBD_CONNECT2_LSEEK | OBD_CONNECT2_DOM_LVB |\
911 OBD_CONNECT2_REP_MBITS | \
912 OBD_CONNECT2_ATOMIC_OPEN_LOCK | \
913 OBD_CONNECT2_BATCH_RPC | \
914 OBD_CONNECT2_ENCRYPT_NAME)
916 #define OST_CONNECT_SUPPORTED (OBD_CONNECT_SRVLOCK | OBD_CONNECT_GRANT | \
917 OBD_CONNECT_REQPORTAL | OBD_CONNECT_VERSION | \
918 OBD_CONNECT_INDEX | \
919 OBD_CONNECT_BRW_SIZE | OBD_CONNECT_CANCELSET | \
920 OBD_CONNECT_AT | LRU_RESIZE_CONNECT_FLAG | \
921 OBD_CONNECT_CKSUM | OBD_CONNECT_VBR | \
922 OBD_CONNECT_MDS | OBD_CONNECT_SKIP_ORPHAN | \
923 OBD_CONNECT_GRANT_SHRINK | OBD_CONNECT_FULL20 |\
924 OBD_CONNECT_64BITHASH | OBD_CONNECT_MAXBYTES | \
925 OBD_CONNECT_MAX_EASIZE | \
926 OBD_CONNECT_EINPROGRESS | \
927 OBD_CONNECT_JOBSTATS | \
928 OBD_CONNECT_LIGHTWEIGHT | OBD_CONNECT_LVB_TYPE|\
929 OBD_CONNECT_LAYOUTLOCK | OBD_CONNECT_FID | \
930 OBD_CONNECT_PINGLESS | OBD_CONNECT_LFSCK | \
931 OBD_CONNECT_BULK_MBITS | \
932 OBD_CONNECT_GRANT_PARAM | \
933 OBD_CONNECT_SHORTIO | OBD_CONNECT_FLAGS2)
935 #define OST_CONNECT_SUPPORTED2 (OBD_CONNECT2_LOCKAHEAD | OBD_CONNECT2_INC_XID |\
936 OBD_CONNECT2_ENCRYPT | OBD_CONNECT2_LSEEK |\
937 OBD_CONNECT2_REP_MBITS)
939 #define ECHO_CONNECT_SUPPORTED (OBD_CONNECT_FID | OBD_CONNECT_FLAGS2)
940 #define ECHO_CONNECT_SUPPORTED2 OBD_CONNECT2_REP_MBITS
942 #define MGS_CONNECT_SUPPORTED (OBD_CONNECT_VERSION | OBD_CONNECT_AT | \
943 OBD_CONNECT_FULL20 | OBD_CONNECT_IMP_RECOV | \
944 OBD_CONNECT_PINGLESS |\
945 OBD_CONNECT_BULK_MBITS | OBD_CONNECT_BARRIER | \
948 #define MGS_CONNECT_SUPPORTED2 OBD_CONNECT2_REP_MBITS
950 /* Features required for this version of the client to work with server */
951 #define CLIENT_CONNECT_MDT_REQD (OBD_CONNECT_FID | \
952 OBD_CONNECT_ATTRFID | \
955 /* This structure is used for both request and reply.
957 * If we eventually have separate connect data for different types, which we
958 * almost certainly will, then perhaps we stick a union in here. */
959 struct obd_connect_data {
960 __u64 ocd_connect_flags; /* OBD_CONNECT_* per above */
961 __u32 ocd_version; /* lustre release version number */
962 __u32 ocd_grant; /* initial cache grant amount (bytes) */
963 __u32 ocd_index; /* LOV index to connect to */
964 __u32 ocd_brw_size; /* Maximum BRW size in bytes */
965 __u64 ocd_ibits_known; /* inode bits this client understands */
966 __u8 ocd_grant_blkbits; /* log2 of the backend filesystem blocksize */
967 __u8 ocd_grant_inobits; /* log2 of the per-inode space consumption */
968 __u16 ocd_grant_tax_kb; /* extent insertion overhead, in 1K blocks */
969 __u32 ocd_grant_max_blks;/* maximum number of blocks per extent */
970 __u64 ocd_transno; /* first transno from client to be replayed */
971 __u32 ocd_group; /* MDS group on OST */
972 __u32 ocd_cksum_types; /* supported checksum algorithms */
973 __u32 ocd_max_easize; /* How big LOV EA can be on MDS */
974 __u32 ocd_instance; /* instance # of this target */
975 __u64 ocd_maxbytes; /* Maximum stripe size in bytes */
976 /* Fields after ocd_maxbytes are only accessible by the receiver
977 * if the corresponding flag in ocd_connect_flags is set. Accessing
978 * any field after ocd_maxbytes on the receiver without a valid flag
979 * may result in out-of-bound memory access and kernel oops. */
980 __u16 ocd_maxmodrpcs; /* Maximum modify RPCs in parallel */
981 __u16 padding0; /* READ BELOW! also fix lustre_swab_connect */
982 __u32 padding1; /* READ BELOW! also fix lustre_swab_connect */
983 __u64 ocd_connect_flags2;/* OBD_CONNECT2_* per above */
984 __u64 padding3; /* READ BELOW! also fix lustre_swab_connect */
985 __u64 padding4; /* READ BELOW! also fix lustre_swab_connect */
986 __u64 padding5; /* READ BELOW! also fix lustre_swab_connect */
987 __u64 padding6; /* READ BELOW! also fix lustre_swab_connect */
988 __u64 padding7; /* READ BELOW! also fix lustre_swab_connect */
989 __u64 padding8; /* READ BELOW! also fix lustre_swab_connect */
990 __u64 padding9; /* READ BELOW! also fix lustre_swab_connect */
991 __u64 paddingA; /* READ BELOW! also fix lustre_swab_connect */
992 __u64 paddingB; /* READ BELOW! also fix lustre_swab_connect */
993 __u64 paddingC; /* READ BELOW! also fix lustre_swab_connect */
994 __u64 paddingD; /* READ BELOW! also fix lustre_swab_connect */
995 __u64 paddingE; /* READ BELOW! also fix lustre_swab_connect */
996 __u64 paddingF; /* added 2.1.0. also fix lustre_swab_connect */
998 /* XXX README XXX README XXX README XXX README XXX README XXX README XXX
999 * Please DO NOT use any fields before first ensuring that this field is
1000 * not in use by some other branch/patch. Email adilger@whamcloud.com to
1001 * reserve the new obd_connect_data field for use by your feature. Then, submit
1002 * a small patch against master and LTS branch that ONLY adds the new field,
1003 * updates lustre_swab_connect(), along with the matching OBD_CONNECT flag,
1004 * and updates wiretests accordingly,so it can be approved and landed easily
1005 * to reserve the field for future use by your feature (submitted separately).
1009 * Supported checksum algorithms. Up to 32 checksum types are supported.
1010 * (32-bit mask stored in obd_connect_data::ocd_cksum_types)
1011 * Please update DECLARE_CKSUM_NAME in obd_cksum.h when adding a new
1012 * algorithm and also the OBD_FL_CKSUM* flags, OBD_CKSUM_ALL flag,
1013 * OBD_FL_CKSUM_ALL flag and potentially OBD_CKSUM_T10_ALL flag.
1016 OBD_CKSUM_CRC32 = 0x00000001,
1017 OBD_CKSUM_ADLER = 0x00000002,
1018 OBD_CKSUM_CRC32C = 0x00000004,
1019 OBD_CKSUM_RESERVED = 0x00000008,
1020 OBD_CKSUM_T10IP512 = 0x00000010,
1021 OBD_CKSUM_T10IP4K = 0x00000020,
1022 OBD_CKSUM_T10CRC512 = 0x00000040,
1023 OBD_CKSUM_T10CRC4K = 0x00000080,
1026 #define OBD_CKSUM_T10_ALL (OBD_CKSUM_T10IP512 | OBD_CKSUM_T10IP4K | \
1027 OBD_CKSUM_T10CRC512 | OBD_CKSUM_T10CRC4K)
1029 #define OBD_CKSUM_ALL (OBD_CKSUM_CRC32 | OBD_CKSUM_ADLER | OBD_CKSUM_CRC32C | \
1033 * The default checksum algorithm used on top of T10PI GRD tags for RPC.
1034 * Considering that the checksum-of-checksums is only computing CRC32 on a
1035 * 4KB chunk of GRD tags for a 1MB RPC for 512B sectors, or 16KB of GRD
1036 * tags for 16MB of 4KB sectors, this is only 1/256 or 1/1024 of the
1037 * total data being checksummed, so the checksum type used here should not
1038 * affect overall system performance noticeably.
1040 #define OBD_CKSUM_T10_TOP OBD_CKSUM_ADLER
1043 * OST requests: OBDO & OBD request records
1048 OST_REPLY = 0, /* reply ? */
1064 OST_QUOTACHECK = 18, /* not used since 2.4 */
1066 OST_QUOTA_ADJUST_QUNIT = 20, /* not used since 2.4 */
1070 OST_LAST_OPC /* must be < 33 to avoid MDS_GETATTR */
1072 #define OST_FIRST_OPC OST_REPLY
1075 OBD_FL_INLINEDATA = 0x00000001,
1076 OBD_FL_OBDMDEXISTS = 0x00000002,
1077 OBD_FL_DELORPHAN = 0x00000004, /* if set in o_flags delete orphans */
1078 OBD_FL_NORPC = 0x00000008, /* set in o_flags do in OSC not OST */
1079 OBD_FL_IDONLY = 0x00000010, /* set in o_flags only adjust obj id*/
1080 OBD_FL_RECREATE_OBJS= 0x00000020, /* recreate missing obj */
1081 OBD_FL_DEBUG_CHECK = 0x00000040, /* echo client/server debug check */
1082 OBD_FL_NO_PRJQUOTA = 0x00000080, /* the object's project is over
1084 OBD_FL_NO_USRQUOTA = 0x00000100, /* the object's owner is over quota */
1085 OBD_FL_NO_GRPQUOTA = 0x00000200, /* the object's group is over quota */
1086 OBD_FL_CREATE_CROW = 0x00000400, /* object should be create on write */
1087 OBD_FL_SRVLOCK = 0x00000800, /* delegate DLM locking to server */
1088 OBD_FL_CKSUM_CRC32 = 0x00001000, /* CRC32 checksum type */
1089 OBD_FL_CKSUM_ADLER = 0x00002000, /* ADLER checksum type */
1090 OBD_FL_CKSUM_CRC32C = 0x00004000, /* CRC32C checksum type */
1091 OBD_FL_CKSUM_T10IP512 = 0x00005000, /* T10PI IP cksum, 512B sector */
1092 OBD_FL_CKSUM_T10IP4K = 0x00006000, /* T10PI IP cksum, 4KB sector */
1093 OBD_FL_CKSUM_T10CRC512 = 0x00007000, /* T10PI CRC cksum, 512B sector */
1094 OBD_FL_CKSUM_T10CRC4K = 0x00008000, /* T10PI CRC cksum, 4KB sector */
1095 OBD_FL_CKSUM_RSVD3 = 0x00010000, /* for future cksum types */
1096 OBD_FL_SHRINK_GRANT = 0x00020000, /* object shrink the grant */
1097 OBD_FL_MMAP = 0x00040000, /* object is mmapped on the client.
1098 * XXX: obsoleted - reserved for old
1099 * clients prior than 2.2 */
1100 OBD_FL_RECOV_RESEND = 0x00080000, /* recoverable resent */
1101 OBD_FL_NOSPC_BLK = 0x00100000, /* no more block space on OST */
1102 OBD_FL_FLUSH = 0x00200000, /* flush pages on the OST */
1103 OBD_FL_SHORT_IO = 0x00400000, /* short io request */
1104 OBD_FL_ROOT_SQUASH = 0x00800000, /* root squash */
1105 /* OBD_FL_LOCAL_MASK = 0xF0000000, was local-only flags until 2.10 */
1108 * Note that while the original checksum values were separate bits,
1109 * in 2.x we can actually allow all values from 1-31. T10-PI checksum
1110 * types already use values which are not separate bits.
1112 OBD_FL_CKSUM_ALL = OBD_FL_CKSUM_CRC32 | OBD_FL_CKSUM_ADLER |
1113 OBD_FL_CKSUM_CRC32C | OBD_FL_CKSUM_T10IP512 |
1114 OBD_FL_CKSUM_T10IP4K | OBD_FL_CKSUM_T10CRC512 |
1115 OBD_FL_CKSUM_T10CRC4K,
1117 OBD_FL_NO_QUOTA_ALL = OBD_FL_NO_USRQUOTA | OBD_FL_NO_GRPQUOTA |
1122 * All LOV EA magics should have the same postfix, if some new version
1123 * Lustre instroduces new LOV EA magic, then when down-grade to an old
1124 * Lustre, even though the old version system does not recognizes such
1125 * new magic, it still can distinguish the corrupted cases by checking
1126 * the magic's postfix.
1128 #define LOV_MAGIC_MAGIC 0x0BD0
1129 #define LOV_MAGIC_MASK 0xFFFF
1131 #define LOV_MAGIC_V1 (0x0BD10000 | LOV_MAGIC_MAGIC)
1132 #define LOV_MAGIC_JOIN_V1 (0x0BD20000 | LOV_MAGIC_MAGIC)
1133 #define LOV_MAGIC_V3 (0x0BD30000 | LOV_MAGIC_MAGIC)
1134 #define LOV_MAGIC_MIGRATE (0x0BD40000 | LOV_MAGIC_MAGIC)
1135 /* reserved for specifying OSTs */
1136 #define LOV_MAGIC_SPECIFIC (0x0BD50000 | LOV_MAGIC_MAGIC)
1137 #define LOV_MAGIC LOV_MAGIC_V1
1138 #define LOV_MAGIC_COMP_V1 (0x0BD60000 | LOV_MAGIC_MAGIC)
1139 #define LOV_MAGIC_FOREIGN (0x0BD70000 | LOV_MAGIC_MAGIC)
1140 #define LOV_MAGIC_SEL (0x0BD80000 | LOV_MAGIC_MAGIC)
1143 * magic for fully defined striping
1144 * the idea is that we should have different magics for striping "hints"
1145 * (struct lov_user_md_v[13]) and defined ready-to-use striping (struct
1146 * lov_mds_md_v[13]). at the moment the magics are used in wire protocol,
1147 * we can't just change it w/o long way preparation, but we still need a
1148 * mechanism to allow LOD to differentiate hint versus ready striping.
1149 * so, at the moment we do a trick: MDT knows what to expect from request
1150 * depending on the case (replay uses ready striping, non-replay req uses
1151 * hints), so MDT replaces magic with appropriate one and now LOD can
1152 * easily understand what's inside -bzzz
1154 * those *_DEF magics are only used on server side internally, they
1155 * won't be put on wire or disk.
1157 #define LOV_MAGIC_DEFINED 0x10000000
1158 #define LOV_MAGIC_V1_DEFINED (LOV_MAGIC_DEFINED | LOV_MAGIC_V1)
1159 #define LOV_MAGIC_V3_DEFINED (LOV_MAGIC_DEFINED | LOV_MAGIC_V3)
1160 #define LOV_MAGIC_COMP_V1_DEFINED (LOV_MAGIC_DEFINED | LOV_MAGIC_COMP_V1)
1162 #define lov_pattern(pattern) (pattern & ~LOV_PATTERN_F_MASK)
1163 #define lov_pattern_flags(pattern) (pattern & LOV_PATTERN_F_MASK)
1165 #define lov_ost_data lov_ost_data_v1
1166 struct lov_ost_data_v1 { /* per-stripe data structure (little-endian)*/
1167 struct ost_id l_ost_oi; /* OST object ID */
1168 __u32 l_ost_gen; /* generation of this l_ost_idx */
1169 __u32 l_ost_idx; /* OST index in LOV (lov_tgt_desc->tgts) */
1172 #define lov_mds_md lov_mds_md_v1
1173 struct lov_mds_md_v1 { /* LOV EA mds/wire data (little-endian) */
1174 __u32 lmm_magic; /* magic number = LOV_MAGIC_V1 */
1175 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
1176 struct ost_id lmm_oi; /* LOV object ID */
1177 __u32 lmm_stripe_size; /* size of stripe in bytes */
1178 /* lmm_stripe_count used to be __u32 */
1179 __u16 lmm_stripe_count; /* num stripes in use for this object */
1180 __u16 lmm_layout_gen; /* layout generation number */
1181 struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
1184 #define MAX_MD_SIZE_OLD (sizeof(struct lov_mds_md) + \
1185 4 * sizeof(struct lov_ost_data))
1186 #define MAX_MD_SIZE (sizeof(struct lov_comp_md_v1) + \
1187 4 * (sizeof(struct lov_comp_md_entry_v1) + \
1189 #define MIN_MD_SIZE (sizeof(struct lov_mds_md) + 1 * sizeof(struct lov_ost_data))
1191 /* This is the default MDT reply size allocated, should the striping be bigger,
1192 * it will be reallocated in mdt_fix_reply.
1193 * 100 stripes is a bit less than 2.5k of data */
1194 #define DEF_REP_MD_SIZE (sizeof(struct lov_mds_md) + \
1195 100 * sizeof(struct lov_ost_data))
1197 #define XATTR_NAME_ACL_ACCESS "system.posix_acl_access"
1198 #define XATTR_NAME_ACL_DEFAULT "system.posix_acl_default"
1199 #define XATTR_USER_PREFIX "user."
1200 #define XATTR_TRUSTED_PREFIX "trusted."
1201 #define XATTR_SECURITY_PREFIX "security."
1202 #define XATTR_ENCRYPTION_PREFIX "encryption."
1204 #define XATTR_NAME_SOM "trusted.som"
1205 #define XATTR_NAME_LOV "trusted.lov"
1206 #define XATTR_NAME_LMA "trusted.lma"
1207 #define XATTR_NAME_LMV "trusted.lmv"
1208 #define XATTR_NAME_DEFAULT_LMV "trusted.dmv"
1209 #define XATTR_NAME_LINK "trusted.link"
1210 #define XATTR_NAME_FID "trusted.fid"
1211 #define XATTR_NAME_VERSION "trusted.version"
1212 #define XATTR_NAME_SOM "trusted.som"
1213 #define XATTR_NAME_HSM "trusted.hsm"
1214 #define XATTR_NAME_LFSCK_BITMAP "trusted.lfsck_bitmap"
1215 #define XATTR_NAME_DUMMY "trusted.dummy"
1216 #define XATTR_NAME_PROJID "trusted.projid"
1218 #define LL_XATTR_NAME_ENCRYPTION_CONTEXT_OLD XATTR_SECURITY_PREFIX"c"
1219 #define LL_XATTR_NAME_ENCRYPTION_CONTEXT XATTR_ENCRYPTION_PREFIX"c"
1221 #define XATTR_NAME_LFSCK_NAMESPACE "trusted.lfsck_ns"
1222 #define XATTR_NAME_MAX_LEN 32 /* increase this, if there is longer name. */
1224 struct lov_mds_md_v3 { /* LOV EA mds/wire data (little-endian) */
1225 __u32 lmm_magic; /* magic number = LOV_MAGIC_V3 */
1226 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
1227 struct ost_id lmm_oi; /* LOV object ID */
1228 __u32 lmm_stripe_size; /* size of stripe in bytes */
1229 /* lmm_stripe_count used to be __u32 */
1230 __u16 lmm_stripe_count; /* num stripes in use for this object */
1231 __u16 lmm_layout_gen; /* layout generation number */
1232 char lmm_pool_name[LOV_MAXPOOLNAME + 1]; /* must be 32bit aligned */
1233 struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
1236 static inline __u32 lov_mds_md_size(__u16 stripes, __u32 lmm_magic)
1238 if (stripes == (__u16)-1)
1241 if (lmm_magic == LOV_MAGIC_V3)
1242 return sizeof(struct lov_mds_md_v3) +
1243 stripes * sizeof(struct lov_ost_data_v1);
1245 return sizeof(struct lov_mds_md_v1) +
1246 stripes * sizeof(struct lov_ost_data_v1);
1250 lov_mds_md_max_stripe_count(__kernel_size_t buf_size, __u32 lmm_magic)
1252 switch (lmm_magic) {
1253 case LOV_MAGIC_V1: {
1254 struct lov_mds_md_v1 lmm;
1256 if (buf_size < sizeof(lmm))
1259 return (buf_size - sizeof(lmm)) / sizeof(lmm.lmm_objects[0]);
1261 case LOV_MAGIC_V3: {
1262 struct lov_mds_md_v3 lmm;
1264 if (buf_size < sizeof(lmm))
1267 return (buf_size - sizeof(lmm)) / sizeof(lmm.lmm_objects[0]);
1274 #define OBD_MD_FLID (0x00000001ULL) /* object ID */
1275 #define OBD_MD_FLATIME (0x00000002ULL) /* access time */
1276 #define OBD_MD_FLMTIME (0x00000004ULL) /* data modification time */
1277 #define OBD_MD_FLCTIME (0x00000008ULL) /* change time */
1278 #define OBD_MD_FLSIZE (0x00000010ULL) /* size */
1279 #define OBD_MD_FLBLOCKS (0x00000020ULL) /* allocated blocks count */
1280 #define OBD_MD_FLBLKSZ (0x00000040ULL) /* block size */
1281 #define OBD_MD_FLMODE (0x00000080ULL) /* access bits (mode & ~S_IFMT) */
1282 #define OBD_MD_FLTYPE (0x00000100ULL) /* object type (mode & S_IFMT) */
1283 #define OBD_MD_FLUID (0x00000200ULL) /* user ID */
1284 #define OBD_MD_FLGID (0x00000400ULL) /* group ID */
1285 #define OBD_MD_FLFLAGS (0x00000800ULL) /* flags word */
1286 #define OBD_MD_DOM_SIZE (0x00001000ULL) /* Data-on-MDT component size */
1287 #define OBD_MD_FLNLINK (0x00002000ULL) /* link count */
1288 #define OBD_MD_FLPARENT (0x00004000ULL) /* parent FID */
1289 #define OBD_MD_LAYOUT_VERSION (0x00008000ULL) /* OST object layout version */
1290 #define OBD_MD_FLRDEV (0x00010000ULL) /* device number */
1291 #define OBD_MD_FLEASIZE (0x00020000ULL) /* extended attribute data */
1292 #define OBD_MD_LINKNAME (0x00040000ULL) /* symbolic link target */
1293 #define OBD_MD_FLHANDLE (0x00080000ULL) /* file/lock handle */
1294 #define OBD_MD_FLCKSUM (0x00100000ULL) /* bulk data checksum */
1295 /* OBD_MD_FLQOS (0x00200000ULL) has never been used */
1296 /* OBD_MD_FLCOOKIE (0x00800000ULL) obsolete in 2.8 */
1297 #define OBD_MD_FLPRJQUOTA (0x00400000ULL) /* over quota flags sent from ost */
1298 #define OBD_MD_FLGROUP (0x01000000ULL) /* group */
1299 #define OBD_MD_FLFID (0x02000000ULL) /* ->ost write inline fid */
1300 /* OBD_MD_FLEPOCH (0x04000000ULL) obsolete 2.7.50 */
1301 /* ->mds if epoch opens or closes */
1302 #define OBD_MD_FLGRANT (0x08000000ULL) /* ost preallocation space grant */
1303 #define OBD_MD_FLDIREA (0x10000000ULL) /* dir's extended attribute data */
1304 #define OBD_MD_FLUSRQUOTA (0x20000000ULL) /* over quota flags sent from ost */
1305 #define OBD_MD_FLGRPQUOTA (0x40000000ULL) /* over quota flags sent from ost */
1306 #define OBD_MD_FLMODEASIZE (0x80000000ULL) /* EA size will be changed */
1308 #define OBD_MD_MDS (0x0000000100000000ULL) /* where an inode lives on */
1309 /* OBD_MD_REINT (0x0000000200000000ULL) obsolete 1.8 */
1310 #define OBD_MD_MEA (0x0000000400000000ULL) /* CMD split EA */
1311 #define OBD_MD_TSTATE (0x0000000800000000ULL) /* transient state field */
1313 #define OBD_MD_FLXATTR (0x0000001000000000ULL) /* xattr */
1314 #define OBD_MD_FLXATTRLS (0x0000002000000000ULL) /* xattr list */
1315 #define OBD_MD_FLXATTRRM (0x0000004000000000ULL) /* xattr remove */
1316 #define OBD_MD_FLACL (0x0000008000000000ULL) /* ACL */
1317 #define OBD_MD_FLAGSTATFS (0x0000010000000000ULL) /* aggregated statfs */
1318 /* OBD_MD_FLMDSCAPA (0x0000020000000000ULL) obsolete 2.7.54 */
1319 /* OBD_MD_FLOSSCAPA (0x0000040000000000ULL) obsolete 2.7.54 */
1320 /* OBD_MD_FLCKSPLIT (0x0000080000000000ULL) obsolete 2.3.58*/
1321 #define OBD_MD_FLCROSSREF (0x0000100000000000ULL) /* Cross-ref case */
1322 #define OBD_MD_FLGETATTRLOCK (0x0000200000000000ULL) /* Get IOEpoch attributes
1323 * under lock; for xattr
1324 * requests means the
1325 * client holds the lock */
1326 #define OBD_MD_FLOBJCOUNT (0x0000400000000000ULL) /* for multiple destroy */
1328 #define OBD_MD_FLDATAVERSION (0x0010000000000000ULL) /* iversion sum */
1329 #define OBD_MD_CLOSE_INTENT_EXECED (0x0020000000000000ULL) /* close intent
1332 #define OBD_MD_DEFAULT_MEA (0x0040000000000000ULL) /* default MEA */
1333 #define OBD_MD_FLOSTLAYOUT (0x0080000000000000ULL) /* contain ost_layout */
1334 #define OBD_MD_FLPROJID (0x0100000000000000ULL) /* project ID */
1335 #define OBD_MD_SECCTX (0x0200000000000000ULL) /* embed security xattr */
1336 #define OBD_MD_FLLAZYSIZE (0x0400000000000000ULL) /* Lazy size */
1337 #define OBD_MD_FLLAZYBLOCKS (0x0800000000000000ULL) /* Lazy blocks */
1338 #define OBD_MD_FLBTIME (0x1000000000000000ULL) /* birth time */
1339 #define OBD_MD_ENCCTX (0x2000000000000000ULL) /* embed encryption ctx */
1340 #define OBD_MD_NAMEHASH (0x4000000000000000ULL) /* use hash instead of name
1341 * in case of encryption
1344 #define OBD_MD_FLALLQUOTA (OBD_MD_FLUSRQUOTA | \
1345 OBD_MD_FLGRPQUOTA | \
1348 #define OBD_MD_FLGETATTR (OBD_MD_FLID | OBD_MD_FLATIME | OBD_MD_FLMTIME | \
1349 OBD_MD_FLCTIME | OBD_MD_FLSIZE | OBD_MD_FLBLKSZ | \
1350 OBD_MD_FLMODE | OBD_MD_FLTYPE | OBD_MD_FLUID | \
1351 OBD_MD_FLGID | OBD_MD_FLFLAGS | OBD_MD_FLNLINK | \
1352 OBD_MD_FLPARENT | OBD_MD_FLRDEV | OBD_MD_FLGROUP | \
1353 OBD_MD_FLPROJID | OBD_MD_FLBTIME)
1355 #define OBD_MD_FLXATTRALL (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS)
1357 /* don't forget obdo_fid which is way down at the bottom so it can
1358 * come after the definition of llog_cookie */
1362 HSS_CLEARMASK = 0x02,
1363 HSS_ARCHIVE_ID = 0x04,
1366 struct hsm_state_set {
1368 __u32 hss_archive_id;
1370 __u64 hss_clearmask;
1373 /* ost_body.data values for OST_BRW */
1375 #define OBD_BRW_READ 0x01
1376 #define OBD_BRW_WRITE 0x02
1377 #define OBD_BRW_RWMASK (OBD_BRW_READ | OBD_BRW_WRITE)
1378 #define OBD_BRW_NDELAY 0x04 /* Non-delay RPC should be issued for
1379 * this page. Non-delay RPCs have bit
1380 * rq_no_delay set. */
1381 #define OBD_BRW_SYNC 0x08 /* this page is a part of synchronous
1382 * transfer and is not accounted in
1384 #define OBD_BRW_CHECK 0x10
1385 #define OBD_BRW_FROM_GRANT 0x20 /* the osc manages this under llite */
1386 #define OBD_BRW_GRANTED 0x40 /* the ost manages this */
1387 /* OBD_BRW_NOCACHE is currently neither set nor tested */
1388 #define OBD_BRW_NOCACHE 0x80 /* this page is a part of non-cached IO */
1389 #define OBD_BRW_NOQUOTA 0x100 /* do not enforce quota */
1390 #define OBD_BRW_SRVLOCK 0x200 /* Client holds no lock over this page */
1391 #define OBD_BRW_ASYNC 0x400 /* Server may delay commit to disk */
1392 #define OBD_BRW_MEMALLOC 0x800 /* Client runs in the "kswapd" context */
1393 #define OBD_BRW_OVER_USRQUOTA 0x1000 /* Running out of user quota */
1394 #define OBD_BRW_OVER_GRPQUOTA 0x2000 /* Running out of group quota */
1395 #define OBD_BRW_SOFT_SYNC 0x4000 /* This flag notifies the server
1396 * that the client is running low on
1397 * space for unstable pages; asking
1398 * it to sync quickly */
1399 #define OBD_BRW_OVER_PRJQUOTA 0x8000 /* Running out of project quota */
1400 #define OBD_BRW_RDMA_ONLY 0x20000 /* RPC contains RDMA-only pages*/
1401 #define OBD_BRW_SYS_RESOURCE 0x40000 /* page has CAP_SYS_RESOURCE */
1403 #define OBD_BRW_OVER_ALLQUOTA (OBD_BRW_OVER_USRQUOTA | \
1404 OBD_BRW_OVER_GRPQUOTA | \
1405 OBD_BRW_OVER_PRJQUOTA)
1407 #define OBD_BRW_DONE 0x40000000UL /*
1408 * osd-ldiskfs inernal,
1409 * IO has been issued before
1411 #define OBD_BRW_LOCAL1 0x80000000UL /*
1412 * osd-ldiskfs internal,
1413 * page mapped to real block
1416 #define OBD_BRW_LOCALS (OBD_BRW_LOCAL1 | OBD_BRW_DONE)
1418 #define OBD_MAX_GRANT 0x7fffffffUL /* Max grant allowed to one client: 2 GiB */
1420 #define OBD_OBJECT_EOF LUSTRE_EOF
1422 #define OST_MIN_PRECREATE 32
1423 #define OST_MAX_PRECREATE 20000
1426 struct ost_id ioo_oid; /* object ID, if multi-obj BRW */
1427 __u32 ioo_max_brw; /* low 16 bits were o_mode before 2.4,
1428 * now (PTLRPC_BULK_OPS_COUNT - 1) in
1429 * high 16 bits in 2.4 and later */
1430 __u32 ioo_bufcnt; /* number of niobufs for this object */
1433 /* NOTE: IOOBJ_MAX_BRW_BITS defines the _offset_ of the max_brw field in
1434 * ioo_max_brw, NOT the maximum number of bits in PTLRPC_BULK_OPS_BITS.
1435 * That said, ioo_max_brw is a 32-bit field so the limit is also 16 bits. */
1436 #define IOOBJ_MAX_BRW_BITS 16
1437 #define ioobj_max_brw_get(ioo) (((ioo)->ioo_max_brw >> IOOBJ_MAX_BRW_BITS) + 1)
1438 #define ioobj_max_brw_set(ioo, num) \
1439 do { (ioo)->ioo_max_brw = ((num) - 1) << IOOBJ_MAX_BRW_BITS; } while (0)
1441 /* multiple of 8 bytes => can array */
1442 struct niobuf_remote {
1448 /* lock value block communicated between the filter and llite */
1450 /* OST_LVB_ERR_INIT is needed because the return code in rc is
1451 * negative, i.e. because ((MASK + rc) & MASK) != MASK. */
1452 #define OST_LVB_ERR_INIT 0xffbadbad80000000ULL
1453 #define OST_LVB_ERR_MASK 0xffbadbad00000000ULL
1454 #define OST_LVB_IS_ERR(blocks) \
1455 ((blocks & OST_LVB_ERR_MASK) == OST_LVB_ERR_MASK)
1456 #define OST_LVB_SET_ERR(blocks, rc) \
1457 do { blocks = OST_LVB_ERR_INIT + rc; } while (0)
1458 #define OST_LVB_GET_ERR(blocks) (int)(blocks - OST_LVB_ERR_INIT)
1481 * lquota data structures
1484 /* The lquota_id structure is an union of all the possible identifier types that
1485 * can be used with quota, this includes:
1488 * - a FID which can be used for per-directory quota in the future */
1490 struct lu_fid qid_fid; /* FID for per-directory quota */
1491 __u64 qid_uid; /* user identifier */
1492 __u64 qid_gid; /* group identifier */
1493 __u64 qid_projid; /* project identifier */
1496 /* quotactl management */
1497 struct obd_quotactl {
1499 __u32 qc_type; /* see Q_* flag below */
1502 struct obd_dqinfo qc_dqinfo;
1503 struct obd_dqblk qc_dqblk;
1504 char qc_poolname[0];
1507 #define Q_COPY(out, in, member) (out)->member = (in)->member
1509 #define __QCTL_COPY(out, in, need_pname) \
1511 Q_COPY(out, in, qc_cmd); \
1512 Q_COPY(out, in, qc_type); \
1513 Q_COPY(out, in, qc_id); \
1514 Q_COPY(out, in, qc_stat); \
1515 Q_COPY(out, in, qc_dqinfo); \
1516 Q_COPY(out, in, qc_dqblk); \
1517 if (need_pname && LUSTRE_Q_CMD_IS_POOL(in->qc_cmd)) \
1518 memcpy(out->qc_poolname, \
1520 LOV_MAXPOOLNAME + 1); \
1523 #define QCTL_COPY(out, in) __QCTL_COPY(out, in, true)
1524 #define QCTL_COPY_NO_PNAME(out, in) __QCTL_COPY(out, in, false)
1526 /* Body of quota request used for quota acquire/release RPCs between quota
1527 * master (aka QMT) and slaves (ak QSD). */
1529 struct lu_fid qb_fid; /* FID of global index packing the pool ID
1530 * and type (data or metadata) as well as
1531 * the quota type (user or group). */
1532 union lquota_id qb_id; /* uid or gid or directory FID */
1533 __u32 qb_flags; /* see below */
1535 __u64 qb_count; /* acquire/release count (kbytes/inodes) */
1536 __u64 qb_usage; /* current slave usage (kbytes/inodes) */
1537 __u64 qb_slv_ver; /* slave index file version */
1538 struct lustre_handle qb_lockh; /* per-ID lock handle */
1539 struct lustre_handle qb_glb_lockh; /* global lock handle */
1540 __u64 qb_padding1[4];
1543 /* When the quota_body is used in the reply of quota global intent
1544 * lock (IT_QUOTA_CONN) reply, qb_fid contains slave index file FID. */
1545 #define qb_slv_fid qb_fid
1546 /* qb_usage is the current qunit (in kbytes/inodes) when quota_body is used in
1548 #define qb_qunit qb_usage
1550 #define QUOTA_DQACQ_FL_ACQ 0x1 /* acquire quota */
1551 #define QUOTA_DQACQ_FL_PREACQ 0x2 /* pre-acquire */
1552 #define QUOTA_DQACQ_FL_REL 0x4 /* release quota */
1553 #define QUOTA_DQACQ_FL_REPORT 0x8 /* report usage */
1555 /* Quota types currently supported */
1557 LQUOTA_TYPE_USR = 0x00, /* maps to USRQUOTA */
1558 LQUOTA_TYPE_GRP = 0x01, /* maps to GRPQUOTA */
1559 LQUOTA_TYPE_PRJ = 0x02, /* maps to PRJQUOTA */
1563 /* There are 2 different resource types on which a quota limit can be enforced:
1564 * - inodes on the MDTs
1565 * - blocks on the OSTs */
1567 LQUOTA_RES_MD = 0x01, /* skip 0 to avoid null oid in FID */
1568 LQUOTA_RES_DT = 0x02,
1570 LQUOTA_FIRST_RES = LQUOTA_RES_MD
1572 #define LQUOTA_NR_RES (LQUOTA_LAST_RES - LQUOTA_FIRST_RES + 1)
1575 * Space accounting support
1576 * Format of an accounting record, providing disk usage information for a given
1579 struct lquota_acct_rec { /* 16 bytes */
1580 __u64 bspace; /* current space in use */
1581 __u64 ispace; /* current # inodes in use */
1585 * Global quota index support
1586 * Format of a global record, providing global quota settings for a given quota
1589 struct lquota_glb_rec { /* 32 bytes */
1590 __u64 qbr_hardlimit; /* quota hard limit, in #inodes or kbytes */
1591 __u64 qbr_softlimit; /* quota soft limit, in #inodes or kbytes */
1592 __u64 qbr_time; /* grace time, in seconds */
1593 __u64 qbr_granted; /* how much is granted to slaves, in #inodes or
1598 * Slave index support
1599 * Format of a slave record, recording how much space is granted to a given
1602 struct lquota_slv_rec { /* 8 bytes */
1603 __u64 qsr_granted; /* space granted to the slave for the key=ID,
1604 * in #inodes or kbytes */
1607 /* Data structures associated with the quota locks */
1609 /* Glimpse descriptor used for the index & per-ID quota locks */
1610 struct ldlm_gl_lquota_desc {
1611 union lquota_id gl_id; /* quota ID subject to the glimpse */
1612 __u64 gl_flags; /* see LQUOTA_FL* below */
1613 __u64 gl_ver; /* new index version */
1614 __u64 gl_hardlimit; /* new hardlimit or qunit value */
1615 __u64 gl_softlimit; /* new softlimit */
1619 #define gl_qunit gl_hardlimit /* current qunit value used when
1620 * glimpsing per-ID quota locks */
1622 /* quota glimpse flags */
1623 #define LQUOTA_FL_EDQUOT 0x1 /* user/group out of quota space on QMT */
1625 /* LVB used with quota (global and per-ID) locks */
1627 __u64 lvb_flags; /* see LQUOTA_FL* above */
1628 __u64 lvb_id_may_rel; /* space that might be released later */
1629 __u64 lvb_id_rel; /* space released by the slave for this ID */
1630 __u64 lvb_id_qunit; /* current qunit value */
1634 /* LVB used with global quota lock */
1635 #define lvb_glb_ver lvb_id_may_rel /* current version of the global index */
1643 #define QUOTA_FIRST_OPC QUOTA_DQACQ
1652 MDS_GETATTR_NAME = 34,
1657 MDS_DISCONNECT = 39,
1660 MDS_PIN = 42, /* obsolete, never used in a release */
1661 MDS_UNPIN = 43, /* obsolete, never used in a release */
1663 MDS_DONE_WRITING = 45, /* obsolete since 2.8.0 */
1665 MDS_QUOTACHECK = 47, /* not used since 2.4 */
1668 MDS_SETXATTR = 50, /* obsolete, now it's MDS_REINT op */
1670 MDS_IS_SUBDIR = 52, /* obsolete, never used in a release */
1672 MDS_HSM_STATE_GET = 54,
1673 MDS_HSM_STATE_SET = 55,
1674 MDS_HSM_ACTION = 56,
1675 MDS_HSM_PROGRESS = 57,
1676 MDS_HSM_REQUEST = 58,
1677 MDS_HSM_CT_REGISTER = 59,
1678 MDS_HSM_CT_UNREGISTER = 60,
1679 MDS_SWAP_LAYOUTS = 61,
1685 #define MDS_FIRST_OPC MDS_GETATTR
1688 /* opcodes for object update */
1694 #define OUT_UPDATE_FIRST_OPC OUT_UPDATE
1714 /* the disposition of the intent outlines what was executed */
1715 #define DISP_IT_EXECD 0x00000001
1716 #define DISP_LOOKUP_EXECD 0x00000002
1717 #define DISP_LOOKUP_NEG 0x00000004
1718 #define DISP_LOOKUP_POS 0x00000008
1719 #define DISP_OPEN_CREATE 0x00000010
1720 #define DISP_OPEN_OPEN 0x00000020
1721 #define DISP_ENQ_COMPLETE 0x00400000 /* obsolete and unused */
1722 #define DISP_ENQ_OPEN_REF 0x00800000
1723 #define DISP_ENQ_CREATE_REF 0x01000000
1724 #define DISP_OPEN_LOCK 0x02000000
1725 #define DISP_OPEN_LEASE 0x04000000
1726 #define DISP_OPEN_STRIPE 0x08000000
1727 #define DISP_OPEN_DENY 0x10000000
1729 /* INODE LOCK PARTS */
1730 enum mds_ibits_locks {
1731 MDS_INODELOCK_LOOKUP = 0x000001, /* For namespace, dentry etc. Was
1732 * used to protect permission (mode,
1733 * owner, group, etc) before 2.4. */
1734 MDS_INODELOCK_UPDATE = 0x000002, /* size, links, timestamps */
1735 MDS_INODELOCK_OPEN = 0x000004, /* For opened files */
1736 MDS_INODELOCK_LAYOUT = 0x000008, /* for layout */
1738 /* The PERM bit is added in 2.4, and is used to protect permission
1739 * (mode, owner, group, ACL, etc.) separate from LOOKUP lock.
1740 * For remote directories (in DNE) these locks will be granted by
1741 * different MDTs (different LDLM namespace).
1743 * For local directory, the MDT always grants UPDATE|PERM together.
1744 * For remote directory, master MDT (where remote directory is) grants
1745 * UPDATE|PERM, and remote MDT (where name entry is) grants LOOKUP_LOCK.
1747 MDS_INODELOCK_PERM = 0x000010,
1748 MDS_INODELOCK_XATTR = 0x000020, /* non-permission extended attrs */
1749 MDS_INODELOCK_DOM = 0x000040, /* Data for Data-on-MDT files */
1750 /* Do not forget to increase MDS_INODELOCK_NUMBITS when adding bits */
1752 #define MDS_INODELOCK_NUMBITS 7
1753 /* This FULL lock is useful to take on unlink sort of operations */
1754 #define MDS_INODELOCK_FULL ((1 << MDS_INODELOCK_NUMBITS) - 1)
1755 /* DOM lock shouldn't be canceled early, use this macro for ELC */
1756 #define MDS_INODELOCK_ELC (MDS_INODELOCK_FULL & ~MDS_INODELOCK_DOM)
1758 /* NOTE: until Lustre 1.8.7/2.1.1 the fid_ver() was packed into name[2],
1759 * but was moved into name[1] along with the OID to avoid consuming the
1760 * name[2,3] fields that need to be used for the quota id (also a FID). */
1762 LUSTRE_RES_ID_SEQ_OFF = 0,
1763 LUSTRE_RES_ID_VER_OID_OFF = 1,
1764 LUSTRE_RES_ID_WAS_VER_OFF = 2, /* see note above */
1765 LUSTRE_RES_ID_QUOTA_SEQ_OFF = 2,
1766 LUSTRE_RES_ID_QUOTA_VER_OID_OFF = 3,
1767 LUSTRE_RES_ID_HSH_OFF = 3
1770 #define MDS_STATUS_CONN 1
1771 #define MDS_STATUS_LOV 2
1774 /* these should be identical to their EXT4_*_FL counterparts, they are
1775 * redefined here only to avoid dragging in fs/ext4/ext4.h */
1776 LUSTRE_SYNC_FL = 0x00000008, /* Synchronous updates */
1777 LUSTRE_IMMUTABLE_FL = 0x00000010, /* Immutable file */
1778 LUSTRE_APPEND_FL = 0x00000020, /* file writes may only append */
1779 LUSTRE_NODUMP_FL = 0x00000040, /* do not dump file */
1780 LUSTRE_NOATIME_FL = 0x00000080, /* do not update atime */
1781 LUSTRE_INDEX_FL = 0x00001000, /* hash-indexed directory */
1782 LUSTRE_DIRSYNC_FL = 0x00010000, /* dirsync behaviour (dir only) */
1783 LUSTRE_TOPDIR_FL = 0x00020000, /* Top of directory hierarchies*/
1784 LUSTRE_INLINE_DATA_FL = 0x10000000, /* Inode has inline data. */
1785 LUSTRE_PROJINHERIT_FL = 0x20000000, /* Create with parents projid */
1787 /* These flags will not be identical to any EXT4_*_FL counterparts,
1788 * and only reserved for lustre purpose. Note: these flags might
1789 * be conflict with some of EXT4 flags, so
1790 * 1. these conflict flags needs to be removed when the flag is
1791 * wired by la_flags see osd_attr_get().
1792 * 2. If these flags needs to be stored into inode, they will be
1793 * stored in LMA. see LMAI_XXXX */
1794 LUSTRE_ORPHAN_FL = 0x00002000,
1795 LUSTRE_SET_SYNC_FL = 0x00040000, /* Synchronous setattr on OSTs */
1796 LUSTRE_ENCRYPT_FL = 0x00800000, /* encrypted file */
1798 LUSTRE_LMA_FL_MASKS = LUSTRE_ENCRYPT_FL | LUSTRE_ORPHAN_FL,
1801 #ifndef FS_XFLAG_SYNC
1802 #define FS_XFLAG_SYNC 0x00000020 /* all writes synchronous */
1804 #ifndef FS_XFLAG_NOATIME
1805 #define FS_XFLAG_NOATIME 0x00000040 /* do not update access time */
1807 #ifndef FS_XFLAG_IMMUTABLE
1808 #define FS_XFLAG_IMMUTABLE 0x00000008 /* file cannot be modified */
1810 #ifndef FS_XFLAG_APPEND
1811 #define FS_XFLAG_APPEND 0x00000010 /* all writes append */
1813 #ifndef FS_XFLAG_PROJINHERIT
1814 #define FS_XFLAG_PROJINHERIT 0x00000200 /* create with parents projid */
1817 /* 64 possible states */
1818 enum md_transient_state {
1819 MS_RESTORE = (1 << 0), /* restore is running */
1823 struct lu_fid mbo_fid1;
1824 struct lu_fid mbo_fid2;
1825 struct lustre_handle mbo_open_handle;
1827 __u64 mbo_size; /* Offset, in the case of MDS_READPAGE */
1831 __u64 mbo_blocks; /* XID, in the case of MDS_READPAGE */
1832 __u64 mbo_version; /* was mbo_ioepoch before 2.11 */
1833 __u64 mbo_t_state; /* transient file state defined in
1834 * enum md_transient_state
1835 * was "ino" until 2.4.0 */
1838 __u32 mbo_capability;
1842 __u32 mbo_flags; /* most replies: LUSTRE_*_FL file attributes,
1843 * data_version: OBD_FL_* flags
1846 __u32 mbo_nlink; /* #bytes to read in the case of MDS_READPAGE */
1847 __u32 mbo_layout_gen; /* was "generation" until 2.4.0 */
1849 __u32 mbo_eadatasize;
1851 __u32 mbo_max_mdsize;
1852 __u32 mbo_unused3; /* was max_cookiesize until 2.8 */
1853 __u32 mbo_uid_h; /* high 32-bits of uid, for FUID */
1854 __u32 mbo_gid_h; /* high 32-bits of gid, for FUID */
1856 __u64 mbo_dom_size; /* size of DOM component */
1857 __u64 mbo_dom_blocks; /* blocks consumed by DOM component */
1859 __u64 mbo_padding_9; /* also fix lustre_swab_mdt_body */
1860 __u64 mbo_padding_10;
1863 struct mdt_ioepoch {
1864 struct lustre_handle mio_open_handle;
1865 __u64 mio_unused1; /* was ioepoch */
1866 __u32 mio_unused2; /* was flags */
1870 /* permissions for md_perm.mp_perm */
1872 CFS_SETUID_PERM = 0x01,
1873 CFS_SETGID_PERM = 0x02,
1874 CFS_SETGRP_PERM = 0x04,
1877 struct mdt_rec_setattr {
1887 __u32 sa_padding_1_h;
1888 struct lu_fid sa_fid;
1897 __u32 sa_attr_flags;
1899 __u32 sa_bias; /* some operation flags */
1906 * Attribute flags used in mdt_rec_setattr::sa_valid.
1907 * The kernel's #defines for ATTR_* should not be used over the network
1908 * since the client and MDS may run different kernels (see bug 13828)
1909 * Therefore, we should only use MDS_ATTR_* attributes for sa_valid.
1911 enum mds_attr_flags {
1912 MDS_ATTR_MODE = 0x1ULL, /* = 1 */
1913 MDS_ATTR_UID = 0x2ULL, /* = 2 */
1914 MDS_ATTR_GID = 0x4ULL, /* = 4 */
1915 MDS_ATTR_SIZE = 0x8ULL, /* = 8 */
1916 MDS_ATTR_ATIME = 0x10ULL, /* = 16 */
1917 MDS_ATTR_MTIME = 0x20ULL, /* = 32 */
1918 MDS_ATTR_CTIME = 0x40ULL, /* = 64 */
1919 MDS_ATTR_ATIME_SET = 0x80ULL, /* = 128 */
1920 MDS_ATTR_MTIME_SET = 0x100ULL, /* = 256 */
1921 MDS_ATTR_FORCE = 0x200ULL, /* = 512, change it */
1922 MDS_ATTR_ATTR_FLAG = 0x400ULL, /* = 1024 */
1923 MDS_ATTR_KILL_SUID = 0x800ULL, /* = 2048 */
1924 MDS_ATTR_KILL_SGID = 0x1000ULL, /* = 4096 */
1925 MDS_ATTR_CTIME_SET = 0x2000ULL, /* = 8192 */
1926 MDS_ATTR_FROM_OPEN = 0x4000ULL, /* = 16384, from open O_TRUNC */
1927 MDS_ATTR_BLOCKS = 0x8000ULL, /* = 32768 */
1928 MDS_ATTR_PROJID = 0x10000ULL, /* = 65536 */
1929 MDS_ATTR_LSIZE = 0x20000ULL, /* = 131072 */
1930 MDS_ATTR_LBLOCKS = 0x40000ULL, /* = 262144 */
1931 MDS_ATTR_OVERRIDE = 0x2000000ULL, /* = 33554432 */
1935 /* MDS_CHECK_SPLIT = 1 << 0, obsolete before 2.3.58 */
1936 /* used for remote object getattr/open by name: in the original
1937 * getattr/open request, MDT found the object against name is on another
1938 * MDT, then packed FID and LOOKUP lock in reply and returned -EREMOTE,
1939 * and client knew it's a remote object, then set this flag in
1940 * getattr/open request and sent to the corresponding MDT to finish
1941 * getattr/open, which fetched attributes and UPDATE lock/opened file.
1943 MDS_CROSS_REF = 1 << 1,
1944 /* MDS_VTX_BYPASS = 1 << 2, obsolete since 2.3.54 */
1945 MDS_PERM_BYPASS = 1 << 3,
1946 /* MDS_SOM = 1 << 4, obsolete since 2.8.0 */
1947 MDS_QUOTA_IGNORE = 1 << 5,
1948 /* MDS_CLOSE_CLEANUP = 1 << 6, obsolete since 2.3.51 */
1949 MDS_KEEP_ORPHAN = 1 << 7,
1950 MDS_RECOV_OPEN = 1 << 8,
1951 MDS_DATA_MODIFIED = 1 << 9,
1952 MDS_CREATE_VOLATILE = 1 << 10,
1953 MDS_OWNEROVERRIDE = 1 << 11,
1954 MDS_HSM_RELEASE = 1 << 12,
1955 MDS_CLOSE_MIGRATE = 1 << 13,
1956 MDS_CLOSE_LAYOUT_SWAP = 1 << 14,
1957 MDS_CLOSE_LAYOUT_MERGE = 1 << 15,
1958 MDS_CLOSE_RESYNC_DONE = 1 << 16,
1959 MDS_CLOSE_LAYOUT_SPLIT = 1 << 17,
1960 MDS_TRUNC_KEEP_LEASE = 1 << 18,
1961 MDS_PCC_ATTACH = 1 << 19,
1962 MDS_CLOSE_UPDATE_TIMES = 1 << 20,
1963 /* setstripe create only, don't restripe if target exists */
1964 MDS_SETSTRIPE_CREATE = 1 << 21,
1965 MDS_FID_OP = 1 << 22,
1966 /* migrate dirent only */
1967 MDS_MIGRATE_NSONLY = 1 << 23,
1970 #define MDS_CLOSE_INTENT (MDS_HSM_RELEASE | MDS_CLOSE_LAYOUT_SWAP | \
1971 MDS_CLOSE_LAYOUT_MERGE | MDS_CLOSE_LAYOUT_SPLIT | \
1972 MDS_CLOSE_RESYNC_DONE)
1974 /* instance of mdt_reint_rec */
1975 struct mdt_rec_create {
1983 __u32 cr_suppgid1_h;
1985 __u32 cr_suppgid2_h;
1986 struct lu_fid cr_fid1;
1987 struct lu_fid cr_fid2;
1988 struct lustre_handle cr_open_handle_old; /* in case of open replay */
1992 __u32 cr_archive_id;
1995 __u64 cr_padding_1; /* rr_blocks */
1998 /* use of helpers set/get_mrc_cr_flags() is needed to access
1999 * 64 bits cr_flags [cr_flags_l, cr_flags_h], this is done to
2000 * extend cr_flags size without breaking 1.8 compat */
2001 __u32 cr_flags_l; /* for use with open, low 32 bits */
2002 __u32 cr_flags_h; /* for use with open, high 32 bits */
2003 __u32 cr_umask; /* umask for create */
2004 __u32 cr_padding_4; /* rr_padding_4 */
2007 /* instance of mdt_reint_rec */
2008 struct mdt_rec_link {
2016 __u32 lk_suppgid1_h;
2018 __u32 lk_suppgid2_h;
2019 struct lu_fid lk_fid1;
2020 struct lu_fid lk_fid2;
2022 __u64 lk_padding_1; /* rr_atime */
2023 __u64 lk_padding_2; /* rr_ctime */
2024 __u64 lk_padding_3; /* rr_size */
2025 __u64 lk_padding_4; /* rr_blocks */
2027 __u32 lk_padding_5; /* rr_mode */
2028 __u32 lk_padding_6; /* rr_flags */
2029 __u32 lk_padding_7; /* rr_padding_2 */
2030 __u32 lk_padding_8; /* rr_padding_3 */
2031 __u32 lk_padding_9; /* rr_padding_4 */
2034 /* instance of mdt_reint_rec */
2035 struct mdt_rec_unlink {
2043 __u32 ul_suppgid1_h;
2045 __u32 ul_suppgid2_h;
2046 struct lu_fid ul_fid1;
2047 struct lu_fid ul_fid2;
2049 __u64 ul_padding_2; /* rr_atime */
2050 __u64 ul_padding_3; /* rr_ctime */
2051 __u64 ul_padding_4; /* rr_size */
2052 __u64 ul_padding_5; /* rr_blocks */
2055 __u32 ul_padding_6; /* rr_flags */
2056 __u32 ul_padding_7; /* rr_padding_2 */
2057 __u32 ul_padding_8; /* rr_padding_3 */
2058 __u32 ul_padding_9; /* rr_padding_4 */
2061 /* instance of mdt_reint_rec */
2062 struct mdt_rec_rename {
2070 __u32 rn_suppgid1_h;
2072 __u32 rn_suppgid2_h;
2073 struct lu_fid rn_fid1;
2074 struct lu_fid rn_fid2;
2076 __u64 rn_padding_1; /* rr_atime */
2077 __u64 rn_padding_2; /* rr_ctime */
2078 __u64 rn_padding_3; /* rr_size */
2079 __u64 rn_padding_4; /* rr_blocks */
2080 __u32 rn_bias; /* some operation flags */
2081 __u32 rn_mode; /* cross-ref rename has mode */
2082 __u32 rn_padding_5; /* rr_flags */
2083 __u32 rn_padding_6; /* rr_padding_2 */
2084 __u32 rn_padding_7; /* rr_padding_3 */
2085 __u32 rn_padding_8; /* rr_padding_4 */
2088 /* instance of mdt_reint_rec */
2089 struct mdt_rec_setxattr {
2097 __u32 sx_suppgid1_h;
2099 __u32 sx_suppgid2_h;
2100 struct lu_fid sx_fid;
2101 __u64 sx_padding_1; /* These three are rr_fid2 */
2106 __u64 sx_padding_5; /* rr_ctime */
2107 __u64 sx_padding_6; /* rr_size */
2108 __u64 sx_padding_7; /* rr_blocks */
2111 __u32 sx_padding_8; /* rr_flags */
2112 __u32 sx_padding_9; /* rr_padding_2 */
2113 __u32 sx_padding_10; /* rr_padding_3 */
2114 __u32 sx_padding_11; /* rr_padding_4 */
2117 /* instance of mdt_reint_rec
2118 * FLR: for file resync MDS_REINT_RESYNC RPC. */
2119 struct mdt_rec_resync {
2127 __u32 rs_suppgid1_h;
2129 __u32 rs_suppgid2_h;
2130 struct lu_fid rs_fid;
2131 __u8 rs_padding0[sizeof(struct lu_fid)];
2132 struct lustre_handle rs_lease_handle; /* rr_mtime */
2133 __s64 rs_padding1; /* rr_atime */
2134 __s64 rs_padding2; /* rr_ctime */
2135 __u64 rs_padding3; /* rr_size */
2136 __u64 rs_padding4; /* rr_blocks */
2138 __u32 rs_padding5; /* rr_mode */
2139 __u32 rs_padding6; /* rr_flags */
2140 __u32 rs_padding7; /* rr_flags_h */
2141 __u32 rs_padding8; /* rr_umask */
2143 __u16 rs_padding9; /* rr_padding_4 */
2147 * mdt_rec_reint is the template for all mdt_reint_xxx structures.
2148 * Do NOT change the size of various members, otherwise the value
2149 * will be broken in lustre_swab_mdt_rec_reint().
2151 * If you add new members in other mdt_reint_xxx structres and need to use the
2152 * rr_padding_x fields, then update lustre_swab_mdt_rec_reint() also.
2154 struct mdt_rec_reint {
2162 __u32 rr_suppgid1_h;
2164 __u32 rr_suppgid2_h;
2165 struct lu_fid rr_fid1;
2166 struct lu_fid rr_fid2;
2178 __u16 rr_padding_4; /* also fix lustre_swab_mdt_rec_reint */
2181 #define LMV_DESC_QOS_MAXAGE_DEFAULT 60 /* Seconds */
2183 /* lmv structures */
2185 __u32 ld_tgt_count; /* how many MDS's */
2186 __u32 ld_active_tgt_count; /* how many active */
2187 __u32 ld_default_stripe_count; /* how many objects are used */
2188 __u32 ld_pattern; /* default hash pattern */
2189 __u64 ld_default_hash_size;
2190 __u64 ld_padding_1; /* also fix lustre_swab_lmv_desc */
2191 __u32 ld_padding_2; /* also fix lustre_swab_lmv_desc */
2192 __u32 ld_qos_maxage; /* in second */
2193 __u32 ld_padding_3; /* also fix lustre_swab_lmv_desc */
2194 __u32 ld_padding_4; /* also fix lustre_swab_lmv_desc */
2195 struct obd_uuid ld_uuid;
2198 /* LMV layout EA, and it will be stored both in master and slave object */
2199 struct lmv_mds_md_v1 {
2201 __u32 lmv_stripe_count;
2202 __u32 lmv_master_mdt_index; /* On master object, it is master
2203 * MDT index, on slave object, it
2204 * is stripe index of the slave obj */
2205 __u32 lmv_hash_type; /* dir stripe policy, i.e. indicate
2206 * which hash function to be used,
2207 * Note: only lower 16 bits is being
2208 * used for now. Higher 16 bits will
2209 * be used to mark the object status,
2210 * for example migrating or dead. */
2211 __u32 lmv_layout_version; /* increased each time layout changed,
2212 * by directory migration, restripe
2214 __u32 lmv_migrate_offset; /* once this is set, it means this
2215 * directory is been migrated, stripes
2216 * before this offset belong to target,
2217 * from this to source. */
2218 __u32 lmv_migrate_hash; /* hash type of source stripes of
2219 * migrating directory */
2222 char lmv_pool_name[LOV_MAXPOOLNAME + 1]; /* pool name */
2223 struct lu_fid lmv_stripe_fids[0]; /* FIDs for each stripe */
2226 /* stripe count before directory split */
2227 #define lmv_split_offset lmv_migrate_offset
2228 /* stripe count after directory merge */
2229 #define lmv_merge_offset lmv_migrate_offset
2230 /* directory hash type after merge */
2231 #define lmv_merge_hash lmv_migrate_hash
2233 /* foreign LMV EA */
2234 struct lmv_foreign_md {
2235 __u32 lfm_magic; /* magic number = LMV_MAGIC_FOREIGN */
2236 __u32 lfm_length; /* length of lfm_value */
2237 __u32 lfm_type; /* type, see LU_FOREIGN_TYPE_ */
2238 __u32 lfm_flags; /* flags, type specific */
2239 char lfm_value[]; /* free format value */
2242 #define LMV_MAGIC_V1 0x0CD20CD0 /* normal stripe lmv magic */
2243 #define LMV_MAGIC LMV_MAGIC_V1
2245 /* #define LMV_USER_MAGIC 0x0CD30CD0 */
2246 #define LMV_MAGIC_STRIPE 0x0CD40CD0 /* magic for dir sub_stripe */
2247 #define LMV_MAGIC_FOREIGN 0x0CD50CD0 /* magic for lmv foreign */
2250 * The FNV-1a hash algorithm is as follows:
2251 * hash = FNV_offset_basis
2252 * for each octet_of_data to be hashed
2253 * hash = hash XOR octet_of_data
2254 * hash = hash × FNV_prime
2256 * http://en.wikipedia.org/wiki/Fowler–Noll–Vo_hash_function#FNV-1a_hash
2258 * http://www.isthe.com/chongo/tech/comp/fnv/index.html#FNV-reference-source
2259 * FNV_prime is 2^40 + 2^8 + 0xb3 = 0x100000001b3ULL
2261 #define LUSTRE_FNV_1A_64_PRIME 0x100000001b3ULL
2262 #define LUSTRE_FNV_1A_64_OFFSET_BIAS 0xcbf29ce484222325ULL
2263 static inline __u64 lustre_hash_fnv_1a_64(const void *buf, __kernel_size_t size)
2265 __u64 hash = LUSTRE_FNV_1A_64_OFFSET_BIAS;
2266 const unsigned char *p = buf;
2269 for (i = 0; i < size; i++) {
2271 hash *= LUSTRE_FNV_1A_64_PRIME;
2277 /* CRUSH placement group count */
2278 #define LMV_CRUSH_PG_COUNT 4096
2282 struct lmv_mds_md_v1 lmv_md_v1;
2283 struct lmv_user_md lmv_user_md;
2284 struct lmv_foreign_md lmv_foreign_md;
2287 static inline __kernel_ssize_t lmv_mds_md_size(int stripe_count,
2288 unsigned int lmm_magic)
2290 __kernel_ssize_t len = -EINVAL;
2292 switch (lmm_magic) {
2293 case LMV_MAGIC_V1: {
2294 struct lmv_mds_md_v1 *lmm1;
2296 len = sizeof(*lmm1);
2297 len += stripe_count * sizeof(lmm1->lmv_stripe_fids[0]);
2305 static inline int lmv_mds_md_stripe_count_get(const union lmv_mds_md *lmm)
2307 switch (__le32_to_cpu(lmm->lmv_magic)) {
2309 return __le32_to_cpu(lmm->lmv_md_v1.lmv_stripe_count);
2310 case LMV_USER_MAGIC:
2311 return __le32_to_cpu(lmm->lmv_user_md.lum_stripe_count);
2317 static inline int lmv_mds_md_hash_type_get(const union lmv_mds_md *lmm)
2319 switch (__le32_to_cpu(lmm->lmv_magic)) {
2321 return __le32_to_cpu(lmm->lmv_md_v1.lmv_hash_type);
2322 case LMV_USER_MAGIC:
2323 return __le32_to_cpu(lmm->lmv_user_md.lum_hash_type);
2333 FLD_FIRST_OPC = FLD_QUERY
2339 SEQ_FIRST_OPC = SEQ_QUERY
2343 SEQ_ALLOC_SUPER = 0,
2355 LFSCK_NOTIFY = 1101,
2358 LFSCK_FIRST_OPC = LFSCK_NOTIFY
2362 * LOV data structures
2365 #define LOV_MAX_UUID_BUFFER_SIZE 8192
2366 /* The size of the buffer the lov/mdc reserves for the
2367 * array of UUIDs returned by the MDS. With the current
2368 * protocol, this will limit the max number of OSTs per LOV */
2370 #define LOV_DESC_MAGIC 0xB0CCDE5C
2371 #define LOV_DESC_QOS_MAXAGE_DEFAULT 5 /* Seconds */
2372 #define LOV_DESC_STRIPE_SIZE_DEFAULT (1 << LNET_MTU_BITS)
2374 /* LOV settings descriptor (should only contain static info) */
2376 __u32 ld_tgt_count; /* how many OBD's */
2377 __u32 ld_active_tgt_count; /* how many active */
2378 __s32 ld_default_stripe_count; /* how many objects are used */
2379 __u32 ld_pattern; /* default PATTERN_RAID0 */
2380 __u64 ld_default_stripe_size; /* in bytes */
2381 __s64 ld_default_stripe_offset; /* starting OST index */
2382 __u32 ld_padding_0; /* unused */
2383 __u32 ld_qos_maxage; /* in second */
2384 __u32 ld_padding_1; /* also fix lustre_swab_lov_desc */
2385 __u32 ld_padding_2; /* also fix lustre_swab_lov_desc */
2386 struct obd_uuid ld_uuid;
2389 #define ld_magic ld_active_tgt_count /* for swabbing from llogs */
2394 /* opcodes -- MUST be distinct from OST/MDS opcodes */
2399 LDLM_BL_CALLBACK = 104,
2400 LDLM_CP_CALLBACK = 105,
2401 LDLM_GL_CALLBACK = 106,
2402 LDLM_SET_INFO = 107,
2405 #define LDLM_FIRST_OPC LDLM_ENQUEUE
2407 #define RES_NAME_SIZE 4
2408 struct ldlm_res_id {
2409 __u64 name[RES_NAME_SIZE];
2412 #define DLDLMRES "[%#llx:%#llx:%#llx].%#llx"
2413 #define PLDLMRES(res) (unsigned long long)(res)->lr_name.name[0], \
2414 (unsigned long long)(res)->lr_name.name[1], \
2415 (unsigned long long)(res)->lr_name.name[2], \
2416 (unsigned long long)(res)->lr_name.name[3]
2432 #define LCK_MODE_NUM 8
2442 #define LDLM_MIN_TYPE LDLM_PLAIN
2444 struct ldlm_extent {
2450 static inline bool ldlm_extent_equal(const struct ldlm_extent *ex1,
2451 const struct ldlm_extent *ex2)
2453 return ex1->start == ex2->start && ex1->end == ex2->end;
2456 struct ldlm_inodebits {
2459 __u64 try_bits; /* optional bits to try */
2460 __u64 cancel_bits; /* for lock convert */
2465 struct ldlm_flock_wire {
2473 /* it's important that the fields of the ldlm_extent structure match
2474 * the first fields of the ldlm_flock structure because there is only
2475 * one ldlm_swab routine to process the ldlm_policy_data_t union. if
2476 * this ever changes we will need to swab the union differently based
2477 * on the resource type. */
2479 union ldlm_wire_policy_data {
2480 struct ldlm_extent l_extent;
2481 struct ldlm_flock_wire l_flock;
2482 struct ldlm_inodebits l_inodebits;
2485 struct barrier_lvb {
2491 struct ldlm_gl_barrier_desc {
2497 union ldlm_gl_desc {
2498 struct ldlm_gl_lquota_desc lquota_desc;
2499 struct ldlm_gl_barrier_desc barrier_desc;
2502 enum ldlm_intent_flags {
2503 IT_OPEN = 0x00000001,
2504 IT_CREAT = 0x00000002,
2505 IT_OPEN_CREAT = IT_OPEN | IT_CREAT, /* To allow case label. */
2506 IT_READDIR = 0x00000004, /* Used by mdc, not put on the wire. */
2507 IT_GETATTR = 0x00000008,
2508 IT_LOOKUP = 0x00000010,
2509 /* IT_UNLINK = 0x00000020, Obsolete. */
2510 /* IT_TRUNC = 0x00000040, Obsolete. */
2511 IT_GETXATTR = 0x00000080,
2512 /* IT_EXEC = 0x00000100, Obsolete. */
2513 /* IT_PIN = 0x00000200, Obsolete. */
2514 IT_LAYOUT = 0x00000400,
2515 IT_QUOTA_DQACQ = 0x00000800,
2516 IT_QUOTA_CONN = 0x00001000,
2517 /* IT_SETXATTR = 0x00002000, Obsolete. */
2518 IT_GLIMPSE = 0x00004000,
2519 IT_BRW = 0x00008000,
2522 struct ldlm_intent {
2526 struct ldlm_resource_desc {
2527 enum ldlm_type lr_type;
2528 __u32 lr_pad; /* also fix lustre_swab_ldlm_resource_desc */
2529 struct ldlm_res_id lr_name;
2532 struct ldlm_lock_desc {
2533 struct ldlm_resource_desc l_resource;
2534 enum ldlm_mode l_req_mode;
2535 enum ldlm_mode l_granted_mode;
2536 union ldlm_wire_policy_data l_policy_data;
2539 #define LDLM_LOCKREQ_HANDLES 2
2540 #define LDLM_ENQUEUE_CANCEL_OFF 1
2542 struct ldlm_request {
2543 __u32 lock_flags; /* LDLM_FL_*, see lustre_dlm_flags.h */
2544 __u32 lock_count; /* number of locks in lock_handle[] */
2545 struct ldlm_lock_desc lock_desc;/* lock descriptor */
2546 struct lustre_handle lock_handle[LDLM_LOCKREQ_HANDLES];
2551 __u32 lock_padding; /* also fix lustre_swab_ldlm_reply */
2552 struct ldlm_lock_desc lock_desc;
2553 struct lustre_handle lock_handle;
2554 __u64 lock_policy_res1;
2555 __u64 lock_policy_res2;
2558 #define ldlm_flags_to_wire(flags) ((__u32)(flags))
2559 #define ldlm_flags_from_wire(flags) ((__u64)(flags))
2562 * Opcodes for mountconf (mgs and mgc)
2566 MGS_DISCONNECT = 251,
2567 MGS_EXCEPTION = 252, /* node died, etc. */
2568 MGS_TARGET_REG = 253, /* whenever target starts up */
2569 MGS_TARGET_DEL = 254,
2571 MGS_CONFIG_READ = 256,
2573 MGS_FIRST_OPC = MGS_CONNECT
2576 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 18, 53, 0)
2577 #define MGS_PARAM_MAXLEN 1024
2578 #define KEY_SET_INFO "set_info"
2580 struct mgs_send_param {
2581 char mgs_param[MGS_PARAM_MAXLEN];
2585 /* We pass this info to the MGS so it can write config logs */
2586 #define MTI_NAME_MAXLEN 64
2587 #define MTI_PARAM_MAXLEN 4096
2588 #define MTI_NIDS_MAX 32
2589 struct mgs_target_info {
2590 __u32 mti_lustre_ver;
2591 __u32 mti_stripe_index;
2592 __u32 mti_config_ver;
2593 __u32 mti_flags; /* LDD_F_* */
2594 __u32 mti_nid_count;
2595 __u32 mti_instance; /* Running instance of target */
2596 char mti_fsname[MTI_NAME_MAXLEN];
2597 char mti_svname[MTI_NAME_MAXLEN];
2598 char mti_uuid[sizeof(struct obd_uuid)];
2599 __u64 mti_nids[MTI_NIDS_MAX]; /* host nids (lnet_nid_t) */
2600 char mti_params[MTI_PARAM_MAXLEN];
2603 struct mgs_nidtbl_entry {
2604 __u64 mne_version; /* table version of this entry */
2605 __u32 mne_instance; /* target instance # */
2606 __u32 mne_index; /* target index */
2607 __u32 mne_length; /* length of this entry - by bytes */
2608 __u8 mne_type; /* target type LDD_F_SV_TYPE_OST/MDT */
2609 __u8 mne_nid_type; /* type of nid(mbz). for ipv6. */
2610 __u8 mne_nid_size; /* size of each NID, by bytes */
2611 __u8 mne_nid_count; /* # of NIDs in buffer */
2613 lnet_nid_t nids[0]; /* variable size buffer for NIDs. */
2618 MGS_CFG_T_CONFIG = 0,
2619 MGS_CFG_T_SPTLRPC = 1,
2620 MGS_CFG_T_RECOVER = 2,
2621 MGS_CFG_T_PARAMS = 3,
2622 MGS_CFG_T_NODEMAP = 4,
2623 MGS_CFG_T_BARRIER = 5,
2627 struct mgs_config_body {
2628 char mcb_name[MTI_NAME_MAXLEN]; /* logname */
2629 __u64 mcb_offset; /* next index of config log to request */
2630 __u16 mcb_type; /* type of log: MGS_CFG_T_[CONFIG|RECOVER] */
2631 __u8 mcb_nm_cur_pass;
2632 __u8 mcb_bits; /* bits unit size of config log */
2633 __u32 mcb_units; /* # of units for bulk transfer */
2636 struct mgs_config_res {
2637 __u64 mcr_offset; /* index of last config log */
2639 __u64 mcr_size; /* size of the log */
2640 __u64 mcr_nm_cur_pass; /* current nodemap config pass */
2644 /* Config marker flags (in config log) */
2645 #define CM_START 0x01
2647 #define CM_SKIP 0x04
2648 #define CM_UPGRADE146 0x08
2649 #define CM_EXCLUDE 0x10
2650 #define CM_START_SKIP (CM_START | CM_SKIP)
2653 __u32 cm_step; /* aka config version */
2655 __u32 cm_vers; /* lustre release version number */
2656 __u32 cm_padding; /* 64 bit align */
2657 __s64 cm_createtime; /*when this record was first created */
2658 __s64 cm_canceltime; /*when this record is no longer valid*/
2659 char cm_tgtname[MTI_NAME_MAXLEN];
2660 char cm_comment[MTI_NAME_MAXLEN];
2664 * Opcodes for multiple servers.
2668 /* OBD_LOG_CANCEL = 401, obsolete since 1.5 */
2669 /* OBD_QC_CALLBACK = 402, obsolete since 2.4 */
2672 OBD_FIRST_OPC = OBD_PING
2676 * llog contexts indices.
2678 * There is compatibility problem with indexes below, they are not
2679 * continuous and must keep their numbers for compatibility needs.
2680 * See LU-5218 for details.
2683 LLOG_CONFIG_ORIG_CTXT = 0,
2684 LLOG_CONFIG_REPL_CTXT = 1,
2685 LLOG_MDS_OST_ORIG_CTXT = 2,
2686 LLOG_MDS_OST_REPL_CTXT = 3, /* kept just to avoid re-assignment */
2687 LLOG_SIZE_ORIG_CTXT = 4,
2688 LLOG_SIZE_REPL_CTXT = 5,
2689 LLOG_TEST_ORIG_CTXT = 8,
2690 LLOG_TEST_REPL_CTXT = 9, /* kept just to avoid re-assignment */
2691 LLOG_CHANGELOG_ORIG_CTXT = 12, /**< changelog generation on mdd */
2692 LLOG_CHANGELOG_REPL_CTXT = 13, /**< changelog access on clients */
2693 /* for multiple changelog consumers */
2694 LLOG_CHANGELOG_USER_ORIG_CTXT = 14,
2695 LLOG_AGENT_ORIG_CTXT = 15, /**< agent requests generation on cdt */
2696 LLOG_UPDATELOG_ORIG_CTXT = 16, /* update log. reserve for the client */
2697 LLOG_UPDATELOG_REPL_CTXT = 17, /* update log. reserve for the client */
2701 /** Identifier for a single log object */
2703 struct ost_id lgl_oi;
2705 } __attribute__((packed));
2707 /** Records written to the CATALOGS list */
2708 #define CATLIST "CATALOGS"
2710 struct llog_logid lci_logid;
2714 } __attribute__((packed));
2716 /* Log data record types - there is no specific reason that these need to
2717 * be related to the RPC opcodes, but no reason not to (may be handy later?)
2719 #define LLOG_OP_MAGIC 0x10600000
2720 #define LLOG_OP_MASK 0xfff00000
2723 LLOG_PAD_MAGIC = LLOG_OP_MAGIC | 0x00000,
2724 OST_SZ_REC = LLOG_OP_MAGIC | 0x00f00,
2725 /* OST_RAID1_REC = LLOG_OP_MAGIC | 0x01000, never used */
2726 MDS_UNLINK_REC = LLOG_OP_MAGIC | 0x10000 | (MDS_REINT << 8) |
2727 REINT_UNLINK, /* obsolete after 2.5.0 */
2728 MDS_UNLINK64_REC = LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) |
2730 /* MDS_SETATTR_REC = LLOG_OP_MAGIC | 0x12401, obsolete 1.8.0 */
2731 MDS_SETATTR64_REC = LLOG_OP_MAGIC | 0x90000 | (MDS_REINT << 8) |
2733 OBD_CFG_REC = LLOG_OP_MAGIC | 0x20000,
2734 /* PTL_CFG_REC = LLOG_OP_MAGIC | 0x30000, obsolete 1.4.0 */
2735 LLOG_GEN_REC = LLOG_OP_MAGIC | 0x40000,
2736 /* LLOG_JOIN_REC = LLOG_OP_MAGIC | 0x50000, obsolete 1.8.0 */
2737 CHANGELOG_REC = LLOG_OP_MAGIC | 0x60000,
2738 CHANGELOG_USER_REC = LLOG_OP_MAGIC | 0x70000,
2739 CHANGELOG_USER_REC2 = LLOG_OP_MAGIC | 0x70002,
2740 HSM_AGENT_REC = LLOG_OP_MAGIC | 0x80000,
2741 UPDATE_REC = LLOG_OP_MAGIC | 0xa0000, /* Resevered to avoid
2744 LLOG_HDR_MAGIC = LLOG_OP_MAGIC | 0x45539,
2745 LLOG_LOGID_MAGIC = LLOG_OP_MAGIC | 0x4553b,
2748 #define LLOG_REC_HDR_NEEDS_SWABBING(r) \
2749 (((r)->lrh_type & __swab32(LLOG_OP_MASK)) == __swab32(LLOG_OP_MAGIC))
2751 /** Log record header - stored in little endian order.
2752 * Each record must start with this struct, end with a llog_rec_tail,
2753 * and be a multiple of 256 bits in size.
2755 struct llog_rec_hdr {
2760 } __attribute__((packed));
2762 struct llog_rec_tail {
2765 } __attribute__((packed));
2767 /* Where data follow just after header */
2768 #define REC_DATA(ptr) \
2769 ((void *)((char *)ptr + sizeof(struct llog_rec_hdr)))
2771 #define REC_DATA_LEN(rec) \
2772 (rec->lrh_len - sizeof(struct llog_rec_hdr) - \
2773 sizeof(struct llog_rec_tail))
2775 struct llog_logid_rec {
2776 struct llog_rec_hdr lid_hdr;
2777 struct llog_logid lid_id;
2781 struct llog_rec_tail lid_tail;
2782 } __attribute__((packed));
2784 struct llog_unlink_rec {
2785 struct llog_rec_hdr lur_hdr;
2789 struct llog_rec_tail lur_tail;
2790 } __attribute__((packed));
2792 struct llog_unlink64_rec {
2793 struct llog_rec_hdr lur_hdr;
2794 struct lu_fid lur_fid;
2795 __u32 lur_count; /* to destroy the lost precreated */
2799 struct llog_rec_tail lur_tail;
2800 } __attribute__((packed));
2802 struct llog_setattr64_rec {
2803 struct llog_rec_hdr lsr_hdr;
2804 struct ost_id lsr_oi;
2810 struct llog_rec_tail lsr_tail;
2811 } __attribute__((packed));
2813 /* Extended to support project quota */
2814 struct llog_setattr64_rec_v2 {
2815 struct llog_rec_hdr lsr_hdr;
2816 struct ost_id lsr_oi;
2823 __u32 lsr_layout_version;
2826 struct llog_rec_tail lsr_tail;
2827 } __attribute__((packed));
2829 struct llog_size_change_rec {
2830 struct llog_rec_hdr lsc_hdr;
2831 struct ll_fid lsc_fid;
2836 struct llog_rec_tail lsc_tail;
2837 } __attribute__((packed));
2839 #define CHANGELOG_MAGIC 0xca103000
2841 /** \a changelog_rec_type's that can't be masked */
2842 #define CHANGELOG_MINMASK BIT(CL_MARK)
2843 /** bits covering all \a changelog_rec_type's */
2844 #define CHANGELOG_ALLMASK (BIT(CL_LAST) - 1)
2845 /** default \a changelog_rec_type mask. Allow all of them, except
2846 * CL_ATIME since it can really be time consuming, and not necessary
2848 * Remove also CL_OPEN, CL_GETXATTR and CL_DN_OPEN from default list as it can
2849 * be costly and only necessary for audit purpose.
2851 #define CHANGELOG_DEFMASK (CHANGELOG_ALLMASK & \
2852 ~(BIT(CL_ATIME) | BIT(CL_OPEN) | BIT(CL_GETXATTR) | BIT(CL_DN_OPEN)))
2854 /* changelog llog name, needed by client replicators */
2855 #define CHANGELOG_CATALOG "changelog_catalog"
2857 struct changelog_setinfo {
2860 } __attribute__((packed));
2862 /** changelog record */
2863 struct llog_changelog_rec {
2864 struct llog_rec_hdr cr_hdr;
2865 struct changelog_rec cr; /**< Variable length field */
2866 struct llog_rec_tail cr_do_not_use; /**< for_sizeof_only */
2867 } __attribute__((packed));
2869 #define CHANGELOG_USER_PREFIX "cl"
2870 #define CHANGELOG_USER_NAMELEN 16 /* base name including NUL terminator */
2871 #define CHANGELOG_USER_NAMELEN_FULL 30 /* basename plus 'cl$ID-' prefix */
2873 struct llog_changelog_user_rec {
2874 struct llog_rec_hdr cur_hdr;
2876 /* only intended to be used in relative time comparisons to
2877 * detect idle users */
2880 struct llog_rec_tail cur_tail;
2881 } __attribute__((packed));
2883 /* this is twice the size of CHANGELOG_USER_REC */
2884 struct llog_changelog_user_rec2 {
2885 struct llog_rec_hdr cur_hdr;
2887 /* only for use in relative time comparisons to detect idle users */
2892 char cur_name[CHANGELOG_USER_NAMELEN];
2895 struct llog_rec_tail cur_tail;
2896 } __attribute__((packed));
2898 enum agent_req_status {
2906 static inline const char *agent_req_status2name(enum agent_req_status ars)
2924 struct llog_agent_req_rec {
2925 struct llog_rec_hdr arr_hdr; /**< record header */
2926 __u32 arr_status; /**< status of the request */
2928 * agent_req_status */
2929 __u32 arr_archive_id; /**< backend archive number */
2930 __u64 arr_flags; /**< req flags */
2931 __u64 arr_compound_id; /**< compound cookie, ignored */
2932 __u64 arr_req_create; /**< req. creation time */
2933 __u64 arr_req_change; /**< req. status change time */
2934 struct hsm_action_item arr_hai; /**< req. to the agent */
2935 struct llog_rec_tail arr_tail; /**< record tail for_sizezof_only */
2936 } __attribute__((packed));
2938 /* Old llog gen for compatibility */
2942 } __attribute__((packed));
2944 struct llog_gen_rec {
2945 struct llog_rec_hdr lgr_hdr;
2946 struct llog_gen lgr_gen;
2950 struct llog_rec_tail lgr_tail;
2953 /* flags for the logs */
2955 LLOG_F_ZAP_WHEN_EMPTY = 0x1,
2956 LLOG_F_IS_CAT = 0x2,
2957 LLOG_F_IS_PLAIN = 0x4,
2958 LLOG_F_EXT_JOBID = 0x8,
2959 LLOG_F_IS_FIXSIZE = 0x10,
2960 LLOG_F_EXT_EXTRA_FLAGS = 0x20,
2961 LLOG_F_EXT_X_UIDGID = 0x40,
2962 LLOG_F_EXT_X_NID = 0x80,
2963 LLOG_F_EXT_X_OMODE = 0x100,
2964 LLOG_F_EXT_X_XATTR = 0x200,
2965 LLOG_F_RM_ON_ERR = 0x400,
2966 LLOG_F_MAX_AGE = 0x800,
2968 /* Note: Flags covered by LLOG_F_EXT_MASK will be inherited from
2969 * catlog to plain log, so do not add LLOG_F_IS_FIXSIZE here,
2970 * because the catlog record is usually fixed size, but its plain
2971 * log record can be variable */
2972 LLOG_F_EXT_MASK = LLOG_F_EXT_JOBID | LLOG_F_EXT_EXTRA_FLAGS |
2973 LLOG_F_EXT_X_UIDGID | LLOG_F_EXT_X_NID |
2974 LLOG_F_EXT_X_OMODE | LLOG_F_EXT_X_XATTR,
2977 /* means first record of catalog */
2979 LLOG_CAT_FIRST = -1,
2982 /* On-disk header structure of each log object, stored in little endian order */
2983 #define LLOG_MIN_CHUNK_SIZE 8192
2984 #define LLOG_HEADER_SIZE (96) /* sizeof (llog_log_hdr) + sizeof(llh_tail)
2985 * - sizeof(llh_bitmap) */
2986 #define LLOG_BITMAP_BYTES (LLOG_MIN_CHUNK_SIZE - LLOG_HEADER_SIZE)
2987 #define LLOG_MIN_REC_SIZE (24) /* round(llog_rec_hdr + llog_rec_tail) */
2989 struct llog_log_hdr {
2990 struct llog_rec_hdr llh_hdr;
2991 __s64 llh_timestamp;
2993 __u32 llh_bitmap_offset;
2996 /* for a catalog the first/oldest and still in-use plain slot is just
2997 * next to it. It will serve as the upper limit after Catalog has
3000 struct obd_uuid llh_tgtuuid;
3001 __u32 llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32)-23];
3002 /* These fields must always be at the end of the llog_log_hdr.
3003 * Note: llh_bitmap size is variable because llog chunk size could be
3004 * bigger than LLOG_MIN_CHUNK_SIZE, i.e. sizeof(llog_log_hdr) > 8192
3005 * bytes, and the real size is stored in llh_hdr.lrh_len, which means
3006 * llh_tail should only be refered by LLOG_HDR_TAIL().
3007 * But this structure is also used by client/server llog interface
3008 * (see llog_client.c), it will be kept in its original way to avoid
3009 * compatiblity issue. */
3010 __u32 llh_bitmap[LLOG_BITMAP_BYTES / sizeof(__u32)];
3011 struct llog_rec_tail llh_tail;
3012 } __attribute__((packed));
3013 #undef LLOG_HEADER_SIZE
3014 #undef LLOG_BITMAP_BYTES
3016 #define LLOG_HDR_BITMAP_SIZE(llh) (__u32)((llh->llh_hdr.lrh_len - \
3017 llh->llh_bitmap_offset - \
3018 sizeof(llh->llh_tail)) * 8)
3019 #define LLOG_HDR_BITMAP(llh) (__u32 *)((char *)(llh) + \
3020 (llh)->llh_bitmap_offset)
3021 #define LLOG_HDR_TAIL(llh) ((struct llog_rec_tail *)((char *)llh + \
3022 llh->llh_hdr.lrh_len - \
3023 sizeof(llh->llh_tail)))
3025 /** log cookies are used to reference a specific log file and a record therein,
3026 and pass record offset from llog_process_thread to llog_write */
3027 struct llog_cookie {
3029 struct llog_logid lgc_lgl;
3035 } __attribute__((packed));
3037 /** llog protocol */
3038 enum llogd_rpc_ops {
3039 LLOG_ORIGIN_HANDLE_CREATE = 501,
3040 LLOG_ORIGIN_HANDLE_NEXT_BLOCK = 502,
3041 LLOG_ORIGIN_HANDLE_READ_HEADER = 503,
3042 /* LLOG_ORIGIN_HANDLE_WRITE_REC = 504, Obsolete by 2.1. */
3043 /* LLOG_ORIGIN_HANDLE_CLOSE = 505, Obsolete by 1.8. */
3044 /* LLOG_ORIGIN_CONNECT = 506, Obsolete by 2.4. */
3045 /* LLOG_CATINFO = 507, Obsolete by 2.3. */
3046 LLOG_ORIGIN_HANDLE_PREV_BLOCK = 508,
3047 LLOG_ORIGIN_HANDLE_DESTROY = 509, /* Obsolete by 2.11. */
3049 LLOG_FIRST_OPC = LLOG_ORIGIN_HANDLE_CREATE
3053 struct llog_logid lgd_logid;
3055 __u32 lgd_llh_flags;
3057 __u32 lgd_saved_index;
3059 __u64 lgd_cur_offset;
3060 } __attribute__((packed));
3062 struct llogd_conn_body {
3063 struct llog_gen lgdc_gen;
3064 struct llog_logid lgdc_logid;
3065 __u32 lgdc_ctxt_idx;
3066 } __attribute__((packed));
3068 /* Note: 64-bit types are 64-bit aligned in structure */
3070 __u64 o_valid; /* hot fields in this obdo */
3073 __u64 o_size; /* o_size-o_blocks == ost_lvb */
3077 __u64 o_blocks; /* brw: cli sent cached bytes */
3080 /* 32-bit fields start here: keep an even number of them via padding */
3081 __u32 o_blksize; /* optimal IO blocksize */
3082 __u32 o_mode; /* brw: cli sent cache remain */
3086 __u32 o_nlink; /* brw: checksum */
3088 __u32 o_misc; /* brw: o_dropped */
3090 __u64 o_ioepoch; /* epoch in ost writes */
3091 __u32 o_stripe_idx; /* holds stripe idx */
3093 struct lustre_handle o_handle; /* brw: lock handle to prolong
3095 /* Originally, the field is llog_cookie for destroy with unlink cookie
3096 * from MDS, it is obsolete in 2.8. Then reuse it by client to transfer
3097 * layout and PFL information in IO, setattr RPCs. Since llog_cookie is
3098 * not used on wire any longer, remove it from the obdo, then it can be
3099 * enlarged freely in the further without affect related RPCs.
3101 * sizeof(ost_layout) + sieof(__u32) == sizeof(llog_cookie). */
3102 struct ost_layout o_layout;
3103 __u32 o_layout_version;
3107 __u64 o_data_version; /* getattr: sum of iversion for
3109 * brw: grant space consumed on
3110 * the client for the write */
3112 __u32 o_padding_4; /* also fix
3113 * lustre_swab_obdo() */
3118 #define o_dirty o_blocks
3119 #define o_undirty o_mode
3120 #define o_dropped o_misc
3121 #define o_cksum o_nlink
3122 #define o_grant_used o_data_version
3123 #define o_falloc_mode o_nlink
3125 struct lfsck_request {
3137 __u16 lr_async_windows;
3139 struct lu_fid lr_fid;
3140 struct lu_fid lr_fid2;
3148 struct lfsck_reply {
3155 LE_LASTID_REBUILDING = 1,
3156 LE_LASTID_REBUILT = 2,
3162 /* LE_FID_ACCESSED = 8, moved to lfsck_events_local */
3164 LE_CONDITIONAL_DESTROY = 10,
3165 LE_PAIRS_VERIFY = 11,
3166 LE_SET_LMV_MASTER = 15,
3167 LE_SET_LMV_SLAVE = 16,
3170 enum lfsck_event_flags {
3171 LEF_TO_OST = 0x00000001,
3172 LEF_FROM_OST = 0x00000002,
3173 LEF_SET_LMV_HASH = 0x00000004,
3174 LEF_SET_LMV_ALL = 0x00000008,
3175 LEF_RECHECK_NAME_HASH = 0x00000010,
3176 LEF_QUERY_ALL = 0x00000020,
3179 /* request structure for OST's */
3184 /* Key for FIEMAP to be used in get_info calls */
3185 struct ll_fiemap_info_key {
3187 struct obdo lfik_oa;
3188 struct fiemap lfik_fiemap;
3191 #define IDX_INFO_MAGIC 0x3D37CC37
3193 /* Index file transfer through the network. The server serializes the index into
3194 * a byte stream which is sent to the client via a bulk transfer */
3198 /* reply: see idx_info_flags below */
3201 /* request & reply: number of lu_idxpage (to be) transferred */
3205 /* request: requested attributes passed down to the iterator API */
3208 /* request & reply: index file identifier (FID) */
3209 struct lu_fid ii_fid;
3211 /* reply: version of the index file before starting to walk the index.
3212 * Please note that the version can be modified at any time during the
3216 /* request: hash to start with:
3217 * reply: hash of the first entry of the first lu_idxpage and hash
3218 * of the entry to read next if any */
3219 __u64 ii_hash_start;
3222 /* reply: size of keys in lu_idxpages, minimal one if II_FL_VARKEY is
3226 /* reply: size of records in lu_idxpages, minimal one if II_FL_VARREC
3235 #define II_END_OFF MDS_DIR_END_OFF /* all entries have been read */
3237 /* List of flags used in idx_info::ii_flags */
3238 enum idx_info_flags {
3239 II_FL_NOHASH = 1 << 0, /* client doesn't care about hash value */
3240 II_FL_VARKEY = 1 << 1, /* keys can be of variable size */
3241 II_FL_VARREC = 1 << 2, /* records can be of variable size */
3242 II_FL_NONUNQ = 1 << 3, /* index supports non-unique keys */
3243 II_FL_NOKEY = 1 << 4, /* client doesn't care about key */
3246 #define LIP_MAGIC 0x8A6D6B6C
3248 /* 4KB (= LU_PAGE_SIZE) container gathering key/record pairs */
3250 /* 16-byte header */
3253 __u16 lip_nr; /* number of entries in the container */
3254 __u64 lip_pad0; /* additional padding for future use */
3256 /* key/record pairs are stored in the remaining 4080 bytes.
3257 * depending upon the flags in idx_info::ii_flags, each key/record
3258 * pair might be preceded by:
3260 * - the key size (II_FL_VARKEY is set)
3261 * - the record size (II_FL_VARREC is set)
3263 * For the time being, we only support fixed-size key & record. */
3264 char lip_entries[0];
3267 #define LIP_HDR_SIZE (offsetof(struct lu_idxpage, lip_entries))
3269 /* Gather all possible type associated with a 4KB container */
3271 struct lu_dirpage lp_dir; /* for MDS_READPAGE */
3272 struct lu_idxpage lp_idx; /* for OBD_IDX_READ */
3273 char lp_array[LU_PAGE_SIZE];
3276 /* security opcodes */
3279 SEC_CTX_INIT_CONT = 802,
3282 SEC_FIRST_OPC = SEC_CTX_INIT
3285 /** The link ea holds 1 \a link_ea_entry for each hardlink */
3286 #define LINK_EA_MAGIC 0x11EAF1DFUL
3287 struct link_ea_header {
3290 __u64 leh_len; /* total size */
3291 __u32 leh_overflow_time;
3295 /** Hardlink data is name and parent fid.
3296 * Stored in this crazy struct for maximum packing and endian-neutrality
3298 struct link_ea_entry {
3299 /** __u16 stored big-endian, unaligned */
3300 unsigned char lee_reclen[2];
3301 unsigned char lee_parent_fid[sizeof(struct lu_fid)];
3303 } __attribute__((packed));
3305 /** fid2path request/reply structure */
3306 struct getinfo_fid2path {
3307 struct lu_fid gf_fid;
3313 struct lu_fid gf_root_fid[0];
3315 } __attribute__((packed));
3317 /** path2parent request/reply structures */
3319 struct lu_fid gp_fid; /**< parent FID */
3320 __u32 gp_linkno; /**< hardlink number */
3321 __u32 gp_name_size; /**< size of the name field */
3322 char gp_name[0]; /**< zero-terminated link name */
3323 } __attribute__((packed));
3325 enum layout_intent_opc {
3326 LAYOUT_INTENT_ACCESS = 0, /** generic access */
3327 LAYOUT_INTENT_READ = 1, /** not used */
3328 LAYOUT_INTENT_WRITE = 2, /** write file, for comp layout */
3329 LAYOUT_INTENT_GLIMPSE = 3, /** not used */
3330 LAYOUT_INTENT_TRUNC = 4, /** truncate file, for comp layout */
3331 LAYOUT_INTENT_RELEASE = 5, /** reserved for HSM release */
3332 LAYOUT_INTENT_RESTORE = 6, /** reserved for HSM restore */
3335 /* enqueue layout lock with intent */
3336 struct layout_intent {
3337 __u32 li_opc; /* intent operation for enqueue, read, write etc */
3339 struct lu_extent li_extent;
3340 } __attribute__((packed));
3343 * On the wire version of hsm_progress structure.
3345 * Contains the userspace hsm_progress and some internal fields.
3347 struct hsm_progress_kernel {
3348 /* Field taken from struct hsm_progress */
3349 struct lu_fid hpk_fid;
3351 struct hsm_extent hpk_extent;
3353 __u16 hpk_errval; /* positive val */
3355 /* Additional fields */
3356 __u64 hpk_data_version;
3358 } __attribute__((packed));
3361 * OUT_UPDATE RPC Format
3363 * During the cross-ref operation, the Master MDT, which the client send the
3364 * request to, will disassembly the operation into object updates, then OSP
3365 * will send these updates to the remote MDT to be executed.
3367 * An UPDATE_OBJ RPC does a list of updates. Each update belongs to an
3368 * operation and does a type of modification to an object.
3376 * update (ub_count-th)
3378 * ub_count must be less than or equal to UPDATE_PER_RPC_MAX.
3383 * rc [+ buffers] (1st)
3384 * rc [+ buffers] (2st)
3386 * rc [+ buffers] (nr_count-th)
3388 * ur_count must be less than or equal to UPDATE_PER_RPC_MAX and should usually
3389 * be equal to ub_count.
3393 * Type of each update, if adding/deleting update, please also update
3394 * update_opcode in lustre/target/out_lib.c.
3406 OUT_INDEX_LOOKUP = 9,
3407 OUT_INDEX_INSERT = 10,
3408 OUT_INDEX_DELETE = 11,
3414 OUT_XATTR_LIST = 17,
3419 UPDATE_FL_OST = 0x00000001, /* op from OST (not MDT) */
3420 UPDATE_FL_SYNC = 0x00000002, /* commit before replying */
3421 UPDATE_FL_COMMITTED = 0x00000004, /* op committed globally */
3422 UPDATE_FL_NOLOG = 0x00000008 /* for idempotent updates */
3425 struct object_update_param {
3426 __u16 oup_len; /* length of this parameter */
3430 } __attribute__((packed));
3433 struct object_update {
3434 __u16 ou_type; /* enum update_type */
3435 __u16 ou_params_count; /* update parameters count */
3436 __u32 ou_result_size; /* how many bytes can return */
3437 __u32 ou_flags; /* enum update_flag */
3438 __u32 ou_padding1; /* padding 1 */
3439 __u64 ou_batchid; /* op transno on master */
3440 struct lu_fid ou_fid; /* object to be updated */
3441 struct object_update_param ou_params[0]; /* update params */
3444 #define UPDATE_REQUEST_MAGIC_V1 0xBDDE0001
3445 #define UPDATE_REQUEST_MAGIC_V2 0xBDDE0002
3446 #define UPDATE_REQUEST_MAGIC UPDATE_REQUEST_MAGIC_V2
3447 /* Hold object_updates sending to the remote OUT in single RPC */
3448 struct object_update_request {
3450 __u16 ourq_count; /* number of ourq_updates[] */
3452 struct object_update ourq_updates[0];
3455 #define OUT_UPDATE_HEADER_MAGIC 0xBDDF0001
3456 #define OUT_UPDATE_MAX_INLINE_SIZE 4096
3457 /* Header for updates request between MDTs */
3458 struct out_update_header {
3461 __u32 ouh_inline_length;
3462 __u32 ouh_reply_size;
3463 __u32 ouh_inline_data[0];
3466 struct out_update_buffer {
3471 /* the result of object update */
3472 struct object_update_result {
3479 #define UPDATE_REPLY_MAGIC_V1 0x00BD0001
3480 #define UPDATE_REPLY_MAGIC_V2 0x00BD0002
3481 #define UPDATE_REPLY_MAGIC UPDATE_REPLY_MAGIC_V2
3482 /* Hold object_update_results being replied from the remote OUT. */
3483 struct object_update_reply {
3490 /* read update result */
3491 struct out_read_reply {
3498 #define BUT_REQUEST_MAGIC 0xBADE0001
3499 /* Hold batched updates sending to the remote target in a single RPC */
3500 struct batch_update_request {
3501 /* Magic number: BUT_REQUEST_MAGIC. */
3503 /* Number of sub requests packed in this batched RPC: burq_reqmsg[]. */
3505 /* Unused padding field. */
3508 * Sub request message array. As message feild buffers for each sub
3509 * request are packed after padded lustre_msg.lm_buflens[] arrary, thus
3510 * it can locate the next request message via the function
3511 * @batch_update_reqmsg_next() in lustre/include/obj_update.h
3513 struct lustre_msg burq_reqmsg[0];
3516 #define BUT_HEADER_MAGIC 0xBADF0001
3517 /* Header for Batched UpdaTes request */
3518 struct but_update_header {
3519 /* Magic number: BUT_HEADER_MAGIC */
3522 * When the total request buffer length is less than MAX_INLINE_SIZE,
3523 * @buh_count is set with 1 and the batched RPC reqeust can be packed
3525 * Otherwise, @buh_count indicates the IO vector count transferring in
3529 /* inline buffer length when the batched RPC can be packed inline. */
3530 __u32 buh_inline_length;
3531 /* The reply buffer size the client prepared. */
3532 __u32 buh_reply_size;
3533 /* Sub request count in this batched RPC. */
3534 __u32 buh_update_count;
3535 /* Unused padding field. */
3537 /* Inline buffer used when the RPC request can be packed inline. */
3538 __u32 buh_inline_data[0];
3541 struct but_update_buffer {
3546 #define BUT_REPLY_MAGIC 0x00AD0001
3547 /* Batched reply received from a remote targer in a batched RPC. */
3548 struct batch_update_reply {
3549 /* Magic number: BUT_REPLY_MAGIC. */
3551 /* Successful returned sub requests. */
3553 /* Unused padding field. */
3556 * Sub reply message array.
3557 * It can locate the next reply message buffer via the function
3558 * @batch_update_repmsg_next() in lustre/include/obj_update.h
3560 struct lustre_msg burp_repmsg[0];
3564 * Batch update opcode.
3566 enum batch_update_cmd {
3569 BUT_FIRST_OPC = BUT_GETATTR,
3572 /** layout swap request structure
3573 * fid1 and fid2 are in mdt_body
3575 struct mdc_swap_layouts {
3577 } __attribute__((packed));
3579 #define INLINE_RESYNC_ARRAY_SIZE 15
3580 struct close_data_resync_done {
3582 __u32 resync_ids_inline[INLINE_RESYNC_ARRAY_SIZE];
3586 struct lustre_handle cd_handle;
3587 struct lu_fid cd_fid;
3588 __u64 cd_data_version;
3590 __u64 cd_reserved[8];
3591 struct close_data_resync_done cd_resync;
3595 __u32 cd_archive_id;
3599 /* Update llog format */
3601 struct lu_fid uop_fid;
3603 __u16 uop_param_count;
3604 __u16 uop_params_off[];
3605 } __attribute__((packed));
3608 struct update_op uops_op[0];
3611 struct update_params {
3612 struct object_update_param up_params[0];
3615 enum update_records_flag {
3616 UPDATE_RECORD_CONTINUE = 1 >> 0,
3619 * This is the update record format used to store the updates in
3620 * disk. All updates of the operation will be stored in ur_ops.
3621 * All of parameters for updates of the operation will be stored
3623 * To save the space of the record, parameters in ur_ops will only
3624 * remember their offset in ur_params, so to avoid storing duplicate
3625 * parameters in ur_params, which can help us save a lot space for
3626 * operation like creating striped directory.
3628 struct update_records {
3629 __u64 ur_master_transno;
3632 /* If the operation includes multiple updates, then ur_index
3633 * means the index of the update inside the whole updates. */
3635 __u32 ur_update_count;
3636 __u32 ur_param_count;
3637 struct update_ops ur_ops;
3638 /* Note ur_ops has a variable size, so comment out
3639 * the following ur_params, in case some use it directly
3640 * update_records->ur_params
3642 * struct update_params ur_params;
3646 struct llog_update_record {
3647 struct llog_rec_hdr lur_hdr;
3648 struct update_records lur_update_rec;
3649 /* Note ur_update_rec has a variable size, so comment out
3650 * the following ur_tail, in case someone use it directly
3652 * struct llog_rec_tail lur_tail;
3656 /* sepol string format is:
3657 * <1-digit for SELinux status>:<policy name>:<policy version>:<policy hash>
3659 /* Max length of the sepol string
3660 * Should be large enough to contain a sha512sum of the policy
3662 #define SELINUX_MODE_LEN 1
3663 #define SELINUX_POLICY_VER_LEN 3 /* 3 chars to leave room for the future */
3664 #define SELINUX_POLICY_HASH_LEN 64
3665 #define LUSTRE_NODEMAP_SEPOL_LENGTH (SELINUX_MODE_LEN + NAME_MAX + \
3666 SELINUX_POLICY_VER_LEN + \
3667 SELINUX_POLICY_HASH_LEN + 3)
3669 /* lu_nodemap flags */
3671 NM_FL_ALLOW_ROOT_ACCESS = 0x1,
3672 NM_FL_TRUST_CLIENT_IDS = 0x2,
3673 NM_FL_DENY_UNKNOWN = 0x4,
3674 NM_FL_MAP_UID = 0x8,
3675 NM_FL_MAP_GID = 0x10,
3676 NM_FL_ENABLE_AUDIT = 0x20,
3677 NM_FL_FORBID_ENCRYPT = 0x40,
3678 NM_FL_MAP_PROJID = 0x80,
3680 enum nm_flag2_bits {
3681 NM_FL2_READONLY_MOUNT = 0x1,
3684 /* nodemap records, uses 32 byte record length */
3685 #define LUSTRE_NODEMAP_NAME_LENGTH 16
3686 struct nodemap_cluster_rec {
3687 char ncr_name[LUSTRE_NODEMAP_NAME_LENGTH + 1];
3688 enum nm_flag_bits ncr_flags:8;
3689 enum nm_flag2_bits ncr_flags2:8;
3691 __u32 ncr_squash_projid;
3692 __u32 ncr_squash_uid;
3693 __u32 ncr_squash_gid;
3696 /* lnet_nid_t is 8 bytes */
3697 struct nodemap_range_rec {
3698 lnet_nid_t nrr_start_nid;
3699 lnet_nid_t nrr_end_nid;
3704 struct nodemap_id_rec {
3712 struct nodemap_global_rec {
3723 struct nodemap_cluster_rec ncr;
3724 struct nodemap_range_rec nrr;
3725 struct nodemap_id_rec nir;
3726 struct nodemap_global_rec ngr;
3730 * rawobj stuff for GSS
3732 typedef struct netobj_s {
3737 typedef struct rawobj_s {
3744 * following 3 headers must have the same sizes and offsets
3747 __u8 gh_version; /* gss version */
3748 __u8 gh_sp; /* sec part */
3750 __u32 gh_flags; /* wrap flags */
3751 __u32 gh_proc; /* proc */
3752 __u32 gh_seq; /* sequence */
3753 __u32 gh_svc; /* service */
3757 netobj_t gh_handle; /* context handle */
3760 struct gss_rep_header {
3774 struct gss_err_header {
3789 * GSS part of wire context information sent from client, saved and
3790 * used later by server.
3792 struct gss_wire_ctx {
3800 /* This is the lu_ladvise struct which goes out on the wire.
3801 * Corresponds to the userspace arg llapi_lu_ladvise.
3802 * value[1-4] are unspecified fields, used differently by different advices */
3804 __u16 lla_advice; /* advice type */
3805 __u16 lla_value1; /* values for different advice types */
3807 __u64 lla_start; /* first byte of extent for advice */
3808 __u64 lla_end; /* last byte of extent for advice */
3813 /* This is the ladvise_hdr which goes on the wire, corresponds to the userspace
3814 * arg llapi_ladvise_hdr.
3815 * value[1-3] are unspecified fields, used differently by different advices */
3816 struct ladvise_hdr {
3817 __u32 lah_magic; /* LADVISE_MAGIC */
3818 __u32 lah_count; /* number of advices */
3819 __u64 lah_flags; /* from enum ladvise_flag */
3820 __u32 lah_value1; /* unused */
3821 __u32 lah_value2; /* unused */
3822 __u64 lah_value3; /* unused */
3823 struct lu_ladvise lah_advise[0]; /* advices in this header */
3826 #if defined(__cplusplus)