1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * Lustre wire protocol definitions.
23 * All structs passing over the wire should be declared here (lov_mds_md
24 * being the lone exception). Structs must be properly aligned to put
25 * 64-bit values on an 8-byte boundary. Any structs being added here
26 * must also be added to utils/wirecheck.c and "make newwiretest" run
27 * to regenerate the utils/wiretest.c sources. This allows us to verify
28 * that wire structs have the proper alignment/size on all architectures.
30 * We assume all nodes are either little-endian or big-endian, and we
31 * always send messages in the sender's native format. The receiver
32 * detects the message format by checking the 'magic' field of the message
33 * (see lustre_msg_swabbed() below).
35 * Each wire type has corresponding 'lustre_swab_xxxtypexxx()' routines,
36 * implemented either here, inline (trivial implementations) or in
37 * ptlrpc/pack_generic.c. These 'swabbers' convert the type from "other"
38 * endian, in-place in the message buffer.
40 * A swabber takes a single pointer argument. The caller must already have
41 * verified that the length of the message buffer >= sizeof (type).
43 * For variable length types, a second 'lustre_swab_v_xxxtypexxx()' routine
44 * may be defined that swabs just the variable part, after the caller has
45 * verified that the message buffer is large enough.
48 #ifndef _LUSTRE_IDL_H_
49 #define _LUSTRE_IDL_H_
52 # include <linux/ioctl.h>
53 # include <asm/types.h>
54 # include <linux/types.h>
55 # include <linux/list.h>
56 # include <linux/string.h> /* for strncpy, below */
57 # include <linux/fs.h> /* to check for FMODE_EXEC, lest we redefine */
60 # include <sys/types.h>
62 # include <asm/types.h>
65 # include <portals/list.h>
69 /* Defn's shared with user-space. */
70 #include <lustre/lustre_user.h>
73 * this file contains all data structures used in Lustre interfaces:
74 * - obdo and obd_request records
75 * - mds_request records
87 static inline int obd_uuid_equals(struct obd_uuid *u1, struct obd_uuid *u2)
89 return strcmp(u1->uuid, u2->uuid) == 0;
92 static inline void obd_str2uuid(struct obd_uuid *uuid, char *tmp)
94 strncpy(uuid->uuid, tmp, sizeof(*uuid));
95 uuid->uuid[sizeof(*uuid) - 1] = '\0';
98 /* FOO_REQUEST_PORTAL is for incoming requests on the FOO
99 * FOO_REPLY_PORTAL is for incoming replies on the FOO
100 * FOO_BULK_PORTAL is for incoming bulk on the FOO
103 #define CONNMGR_REQUEST_PORTAL 1
104 #define CONNMGR_REPLY_PORTAL 2
105 //#define OSC_REQUEST_PORTAL 3
106 #define OSC_REPLY_PORTAL 4
107 //#define OSC_BULK_PORTAL 5
108 #define OST_REQUEST_PORTAL 6
109 #define OST_CREATE_PORTAL 7
110 #define OST_BULK_PORTAL 8
111 //#define MDC_REQUEST_PORTAL 9
112 #define MDC_REPLY_PORTAL 10
113 //#define MDC_BULK_PORTAL 11
114 #define MDS_REQUEST_PORTAL 12
115 //#define MDS_REPLY_PORTAL 13
116 #define MDS_BULK_PORTAL 14
117 #define LDLM_CB_REQUEST_PORTAL 15
118 #define LDLM_CB_REPLY_PORTAL 16
119 #define LDLM_CANCEL_REQUEST_PORTAL 17
120 #define LDLM_CANCEL_REPLY_PORTAL 18
121 #define PTLBD_REQUEST_PORTAL 19
122 #define PTLBD_REPLY_PORTAL 20
123 #define PTLBD_BULK_PORTAL 21
124 #define MDS_SETATTR_PORTAL 22
125 #define MDS_READPAGE_PORTAL 23
126 #define MGMT_REQUEST_PORTAL 24
127 #define MGMT_REPLY_PORTAL 25
128 #define MGMT_CLI_REQUEST_PORTAL 26
129 #define MGMT_CLI_REPLY_PORTAL 27
134 #define SVC_RUNNING 8
135 #define SVC_STOPPING 16
136 #define SVC_STOPPED 32
139 #define PTL_RPC_MSG_REQUEST 4711
140 #define PTL_RPC_MSG_ERR 4712
141 #define PTL_RPC_MSG_REPLY 4713
143 #define PTLRPC_MSG_MAGIC 0x0BD00BD0
146 #define PTLRPC_MSG_VERSION 0x00000003
147 #define LUSTRE_MDS_VERSION (0x00040000|PTLRPC_MSG_VERSION)
148 #define LUSTRE_OST_VERSION (0x00040000|PTLRPC_MSG_VERSION)
149 #define LUSTRE_DLM_VERSION (0x00040000|PTLRPC_MSG_VERSION)
151 struct lustre_handle {
154 #define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL
156 /* we depend on this structure to be 8-byte aligned */
157 /* this type is only endian-adjusted in lustre_unpack_msg() */
159 struct lustre_handle handle;
165 __u64 last_committed;
174 /* Flags that are operation-specific go in the top 16 bits. */
175 #define MSG_OP_FLAG_MASK 0xffff0000
176 #define MSG_OP_FLAG_SHIFT 16
178 /* Flags that apply to all requests are in the bottom 16 bits */
179 #define MSG_GEN_FLAG_MASK 0x0000ffff
180 #define MSG_LAST_REPLAY 1
184 static inline int lustre_msg_get_flags(struct lustre_msg *msg)
186 return (msg->flags & MSG_GEN_FLAG_MASK);
189 static inline void lustre_msg_add_flags(struct lustre_msg *msg, int flags)
191 msg->flags |= MSG_GEN_FLAG_MASK & flags;
194 static inline void lustre_msg_set_flags(struct lustre_msg *msg, int flags)
196 msg->flags &= ~MSG_GEN_FLAG_MASK;
197 lustre_msg_add_flags(msg, flags);
200 static inline void lustre_msg_clear_flags(struct lustre_msg *msg, int flags)
202 msg->flags &= ~(MSG_GEN_FLAG_MASK & flags);
205 static inline int lustre_msg_get_op_flags(struct lustre_msg *msg)
207 return (msg->flags >> MSG_OP_FLAG_SHIFT);
210 static inline void lustre_msg_add_op_flags(struct lustre_msg *msg, int flags)
212 msg->flags |= ((flags & MSG_GEN_FLAG_MASK) << MSG_OP_FLAG_SHIFT);
215 static inline void lustre_msg_set_op_flags(struct lustre_msg *msg, int flags)
217 msg->flags &= ~MSG_OP_FLAG_MASK;
218 lustre_msg_add_op_flags(msg, flags);
222 * Flags for all connect opcodes (MDS_CONNECT, OST_CONNECT)
225 #define MSG_CONNECT_RECOVERING 0x1
226 #define MSG_CONNECT_RECONNECT 0x2
227 #define MSG_CONNECT_REPLAYABLE 0x4
228 //#define MSG_CONNECT_PEER 0x8
229 #define MSG_CONNECT_LIBCLIENT 0x10
232 * OST requests: OBDO & OBD request records
237 OST_REPLY = 0, /* reply ? */
257 #define OST_FIRST_OPC OST_REPLY
259 typedef uint64_t obd_id;
260 typedef uint64_t obd_gr;
261 typedef uint64_t obd_time;
262 typedef uint64_t obd_size;
263 typedef uint64_t obd_off;
264 typedef uint64_t obd_blocks;
265 typedef uint32_t obd_blksize;
266 typedef uint32_t obd_mode;
267 typedef uint32_t obd_uid;
268 typedef uint32_t obd_gid;
269 typedef uint32_t obd_flag;
270 typedef uint32_t obd_count;
272 #define OBD_FL_INLINEDATA (0x00000001)
273 #define OBD_FL_OBDMDEXISTS (0x00000002)
274 #define OBD_FL_DELORPHAN (0x00000004) /* if set in o_flags delete orphans */
275 #define OBD_FL_NORPC (0x00000008) // if set in o_flags set in OSC not OST
276 #define OBD_FL_IDONLY (0x00000010) // if set in o_flags only adjust obj id
277 #define OBD_FL_RECREATE_OBJS (0x00000020) // recreate missing obj
279 #define OBD_INLINESZ 64
281 /* Note: 64-bit types are 64-bit aligned in structure */
289 obd_blocks o_blocks; /* brw: cli sent cached bytes */
291 obd_blksize o_blksize; /* optimal IO blocksize */
292 obd_mode o_mode; /* brw: cli sent cache remain */
296 obd_count o_nlink; /* brw: checksum */
297 obd_count o_generation;
298 obd_flag o_valid; /* hot fields in this obdo */
300 __u32 o_easize; /* epoch in ost writes */
301 char o_inline[OBD_INLINESZ]; /* fid in ost writes */
304 #define o_dirty o_blocks
305 #define o_undirty o_mode
306 #define o_dropped o_misc
307 #define o_cksum o_nlink
309 extern void lustre_swab_obdo (struct obdo *o);
311 #define LOV_MAGIC_V1 0x0BD10BD0
312 #define LOV_MAGIC LOV_MAGIC_V1
314 #define LOV_PATTERN_RAID0 0x001 /* stripes are used round-robin */
315 #define LOV_PATTERN_RAID1 0x002 /* stripes are mirrors of each other */
316 #define LOV_PATTERN_FIRST 0x100 /* first stripe is not in round-robin */
318 #define lov_ost_data lov_ost_data_v1
319 struct lov_ost_data_v1 { /* per-stripe data structure (little-endian)*/
320 __u64 l_object_id; /* OST object ID */
321 __u64 l_object_gr; /* OST object group (creating MDS number) */
322 __u32 l_ost_gen; /* generation of this l_ost_idx */
323 __u32 l_ost_idx; /* OST index in LOV (lov_tgt_desc->tgts) */
326 #define lov_mds_md lov_mds_md_v1
327 struct lov_mds_md_v1 { /* LOV EA mds/wire data (little-endian) */
328 __u32 lmm_magic; /* magic number = LOV_MAGIC_V1 */
329 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
330 __u64 lmm_object_id; /* LOV object ID */
331 __u64 lmm_object_gr; /* LOV object group */
332 __u32 lmm_stripe_size; /* size of stripe in bytes */
333 __u32 lmm_stripe_count; /* num stripes in use for this object */
334 struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
337 #define LOV_MAGIC_V0 0x0BD00BD0
339 struct lov_ost_data_v0 { /* per-stripe data structure (little-endian)*/
340 __u64 l_object_id; /* OST object ID */
343 struct lov_mds_md_v0 { /* LOV EA mds/wire data (little-endian) */
344 __u32 lmm_magic; /* magic number = LOV_MAGIC_V0 */
345 __u64 lmm_object_id; /* LOV object ID */
346 __u32 lmm_stripe_size; /* size of the stripe in bytes (not RAID1) */
347 __u32 lmm_stripe_offset; /* starting stripe offset in lmm_objects */
348 __u16 lmm_stripe_count; /* number of stipes in use for this object */
349 __u16 lmm_ost_count; /* how many OST idx are in this LOV md */
350 struct lov_ost_data_v0 lmm_objects[0];
351 } __attribute__((packed));
353 #define OBD_MD_FLALL (0xffffffff)
354 #define OBD_MD_FLID (0x00000001) /* object ID */
355 #define OBD_MD_FLATIME (0x00000002) /* access time */
356 #define OBD_MD_FLMTIME (0x00000004) /* data modification time */
357 #define OBD_MD_FLCTIME (0x00000008) /* change time */
358 #define OBD_MD_FLSIZE (0x00000010) /* size */
359 #define OBD_MD_FLBLOCKS (0x00000020) /* allocated blocks count */
360 #define OBD_MD_FLBLKSZ (0x00000040) /* block size */
361 #define OBD_MD_FLMODE (0x00000080) /* access bits (mode & ~S_IFMT) */
362 #define OBD_MD_FLTYPE (0x00000100) /* object type (mode & S_IFMT) */
363 #define OBD_MD_FLUID (0x00000200) /* user ID */
364 #define OBD_MD_FLGID (0x00000400) /* group ID */
365 #define OBD_MD_FLFLAGS (0x00000800) /* flags word */
366 #define OBD_MD_FLNLINK (0x00002000) /* link count */
367 #define OBD_MD_FLGENER (0x00004000) /* generation number */
368 #define OBD_MD_FLINLINE (0x00008000) /* inline data */
369 #define OBD_MD_FLRDEV (0x00010000) /* device number */
370 #define OBD_MD_FLEASIZE (0x00020000) /* extended attribute data */
371 #define OBD_MD_LINKNAME (0x00040000) /* symbolic link target */
372 #define OBD_MD_FLHANDLE (0x00080000) /* file handle */
373 #define OBD_MD_FLCKSUM (0x00100000) /* bulk data checksum */
374 #define OBD_MD_FLQOS (0x00200000) /* quality of service stats */
375 #define OBD_MD_FLOSCOPQ (0x00400000) /* osc opaque data */
376 #define OBD_MD_FLCOOKIE (0x00800000) /* log cancellation cookie */
377 #define OBD_MD_FLGROUP (0x01000000) /* group */
378 #define OBD_MD_FLIFID (0x02000000) /* ->ost write inline fid */
379 #define OBD_MD_FLEPOCH (0x04000000) /* ->ost write easize is epoch */
380 #define OBD_MD_FLGRANT (0x08000000) /* ost preallocation space grant */
381 #define OBD_MD_FLDIREA (0x10000000) /* dir's extended attribute data */
382 #define OBD_MD_FLNOTOBD (~(OBD_MD_FLBLOCKS | OBD_MD_LINKNAME|\
383 OBD_MD_FLEASIZE | OBD_MD_FLHANDLE | OBD_MD_FLCKSUM|\
384 OBD_MD_FLQOS | OBD_MD_FLOSCOPQ | OBD_MD_FLCOOKIE))
387 static inline struct lustre_handle *obdo_handle(struct obdo *oa)
389 return (struct lustre_handle *)oa->o_inline;
392 static inline struct llog_cookie *obdo_logcookie(struct obdo *oa)
394 return (struct llog_cookie *)(oa->o_inline +
395 sizeof(struct lustre_handle));
397 /* don't forget obdo_fid which is way down at the bottom so it can
398 * come after the definition of llog_cookie */
414 extern void lustre_swab_obd_statfs (struct obd_statfs *os);
416 /* ost_body.data values for OST_BRW */
418 #define OBD_BRW_READ 0x01
419 #define OBD_BRW_WRITE 0x02
420 #define OBD_BRW_RWMASK (OBD_BRW_READ | OBD_BRW_WRITE)
421 #define OBD_BRW_SYNC 0x08
422 #define OBD_BRW_CHECK 0x10
423 #define OBD_BRW_FROM_GRANT 0x20 /* the osc manages this under llite */
424 #define OBD_BRW_GRANTED 0x40 /* the ost manages this */
426 #define OBD_OBJECT_EOF 0xffffffffffffffffULL
435 extern void lustre_swab_obd_ioobj (struct obd_ioobj *ioo);
437 /* multiple of 8 bytes => can array */
438 struct niobuf_remote {
444 extern void lustre_swab_niobuf_remote (struct niobuf_remote *nbr);
446 /* request structure for OST's */
448 #define OST_REQ_HAS_OA1 0x1
454 extern void lustre_swab_ost_body (struct ost_body *b);
455 extern void lustre_swab_ost_last_id(obd_id *id);
457 /* lock value block communicated between the filter and llite */
467 extern void lustre_swab_ost_lvb(struct ost_lvb *);
476 MDS_GETATTR_NAME = 34,
487 MDS_DONE_WRITING = 45,
490 #define MDS_FIRST_OPC MDS_GETATTR
496 #define REINT_SETATTR 1
497 #define REINT_CREATE 2
499 #define REINT_UNLINK 4
500 #define REINT_RENAME 5
504 /* the disposition of the intent outlines what was executed */
505 #define DISP_IT_EXECD 1
506 #define DISP_LOOKUP_EXECD (1 << 1)
507 #define DISP_LOOKUP_NEG (1 << 2)
508 #define DISP_LOOKUP_POS (1 << 3)
509 #define DISP_OPEN_CREATE (1 << 4)
510 #define DISP_OPEN_OPEN (1 << 5)
511 #define DISP_ENQ_COMPLETE (1<<6)
513 /* INODE LOCK PARTS */
514 #define MDS_INODELOCK_LOOKUP 0x000001 /* dentry, mode, owner, group */
515 #define MDS_INODELOCK_UPDATE 0x000002 /* size, links, timestamps */
516 //#define MDS_INODELOCK_MAXSHIFT 1
517 //#define MDS_INODELOCK_FULL ((1<<(MDS_INODELOCK_MAXSHIFT+1))-1)
525 struct ll_recreate_obj {
530 extern void lustre_swab_ll_fid (struct ll_fid *fid);
532 #define MDS_STATUS_CONN 1
533 #define MDS_STATUS_LOV 2
535 struct mds_status_req {
540 extern void lustre_swab_mds_status_req (struct mds_status_req *r);
542 #define MDS_BFLAG_UNCOMMITTED_WRITES 0x1
547 struct lustre_handle handle;
548 __u64 size; /* Offset, in the case of MDS_READPAGE */
549 __u64 blocks; /* XID, in the case of MDS_READPAGE */
551 __u32 ino; /* make this a __u64 */
562 __u32 flags; /* from vfs for pin/unpin, MDS_BFLAG for close */
564 __u32 nlink; /* #bytes to read in the case of MDS_READPAGE */
571 extern void lustre_swab_mds_body (struct mds_body *b);
574 /* MDS update records */
576 //struct mds_update_record_hdr {
580 struct mds_rec_setattr {
587 struct ll_fid sa_fid;
598 /* Remove this once we declare it in include/linux/fs.h (v21 kernel patch?) */
599 #ifndef ATTR_CTIME_SET
600 #define ATTR_CTIME_SET 0x2000
603 extern void lustre_swab_mds_rec_setattr (struct mds_rec_setattr *sa);
606 #define FMODE_READ 00000001
607 #define FMODE_WRITE 00000002
610 #define FMODE_EXEC 00000004
612 #define MDS_OPEN_CREAT 00000100
613 #define MDS_OPEN_EXCL 00000200
614 #define MDS_OPEN_TRUNC 00001000
615 #define MDS_OPEN_APPEND 00002000
616 #define MDS_OPEN_SYNC 00010000
617 #define MDS_OPEN_DIRECTORY 00200000
619 #define MDS_OPEN_DELAY_CREATE 0100000000 /* delay initial object create */
620 #define MDS_OPEN_HAS_EA 010000000000 /* specify object create pattern */
621 #define MDS_OPEN_HAS_OBJS 020000000000 /* Just set the EA the obj exist */
623 struct mds_rec_create {
628 __u32 cr_flags; /* for use with open */
630 struct ll_fid cr_fid;
631 struct ll_fid cr_replayfid;
638 extern void lustre_swab_mds_rec_create (struct mds_rec_create *cr);
640 struct mds_rec_link {
647 struct ll_fid lk_fid1;
648 struct ll_fid lk_fid2;
652 extern void lustre_swab_mds_rec_link (struct mds_rec_link *lk);
654 struct mds_rec_unlink {
661 struct ll_fid ul_fid1;
662 struct ll_fid ul_fid2;
666 extern void lustre_swab_mds_rec_unlink (struct mds_rec_unlink *ul);
668 struct mds_rec_rename {
675 struct ll_fid rn_fid1;
676 struct ll_fid rn_fid2;
680 extern void lustre_swab_mds_rec_rename (struct mds_rec_rename *rn);
683 * LOV data structures
686 #define LOV_MAX_UUID_BUFFER_SIZE 8192
687 /* The size of the buffer the lov/mdc reserves for the
688 * array of UUIDs returned by the MDS. With the current
689 * protocol, this will limit the max number of OSTs per LOV */
692 __u32 ld_tgt_count; /* how many OBD's */
693 __u32 ld_active_tgt_count; /* how many active */
694 __u32 ld_default_stripe_count; /* how many objects are used */
695 __u32 ld_pattern; /* PATTERN_RAID0, PATTERN_RAID1 */
696 __u64 ld_default_stripe_size; /* in bytes */
697 __u64 ld_default_stripe_offset; /* in bytes */
698 struct obd_uuid ld_uuid;
701 extern void lustre_swab_lov_desc (struct lov_desc *ld);
706 /* opcodes -- MUST be distinct from OST/MDS opcodes */
711 LDLM_BL_CALLBACK = 104,
712 LDLM_CP_CALLBACK = 105,
713 LDLM_GL_CALLBACK = 106,
716 #define LDLM_FIRST_OPC LDLM_ENQUEUE
718 #define RES_NAME_SIZE 4
720 __u64 name[RES_NAME_SIZE];
723 extern void lustre_swab_ldlm_res_id (struct ldlm_res_id *id);
741 struct ldlm_inodebits {
750 __u64 blocking_export;
753 /* it's important that the fields of the ldlm_extent structure match
754 * the first fields of the ldlm_flock structure because there is only
755 * one ldlm_swab routine to process the ldlm_policy_data_t union. if
756 * this ever changes we will need to swab the union differently based
757 * on the resource type. */
760 struct ldlm_extent l_extent;
761 struct ldlm_flock l_flock;
762 struct ldlm_inodebits l_inodebits;
763 } ldlm_policy_data_t;
765 extern void lustre_swab_ldlm_policy_data (ldlm_policy_data_t *d);
771 extern void lustre_swab_ldlm_intent (struct ldlm_intent *i);
773 struct ldlm_resource_desc {
776 struct ldlm_res_id lr_name;
779 extern void lustre_swab_ldlm_resource_desc (struct ldlm_resource_desc *r);
781 struct ldlm_lock_desc {
782 struct ldlm_resource_desc l_resource;
783 ldlm_mode_t l_req_mode;
784 ldlm_mode_t l_granted_mode;
785 ldlm_policy_data_t l_policy_data;
788 extern void lustre_swab_ldlm_lock_desc (struct ldlm_lock_desc *l);
790 struct ldlm_request {
793 struct ldlm_lock_desc lock_desc;
794 struct lustre_handle lock_handle1;
795 struct lustre_handle lock_handle2;
798 extern void lustre_swab_ldlm_request (struct ldlm_request *rq);
803 struct ldlm_lock_desc lock_desc;
804 struct lustre_handle lock_handle;
805 __u64 lock_policy_res1;
806 __u64 lock_policy_res2;
809 extern void lustre_swab_ldlm_reply (struct ldlm_reply *r);
812 * ptlbd, portal block device requests
820 PTLBD_DISCONNECT = 205,
823 #define PTLBD_FIRST_OPC PTLBD_QUERY
833 extern void lustre_swab_ptlbd_op (struct ptlbd_op *op);
842 extern void lustre_swab_ptlbd_niob (struct ptlbd_niob *n);
849 extern void lustre_swab_ptlbd_rsp (struct ptlbd_rsp *r);
852 * Opcodes for management/monitoring node.
857 MGMT_EXCEPTION, /* node died, etc. */
860 #define MGMT_FIRST_OPC MGMT_CONNECT
863 * Opcodes for multiple servers.
871 #define OBD_FIRST_OPC OBD_PING
873 /* catalog of log objects */
875 /* Identifier for a single log object */
880 } __attribute__((packed));
882 /* Records written to the CATALOGS list */
883 #define CATLIST "CATALOGS"
885 struct llog_logid lci_logid;
886 __u32 lci_padding[3];
887 } __attribute__((packed));
889 /* Log data record types - there is no specific reason that these need to
890 * be related to the RPC opcodes, but no reason not to (may be handy later?)
893 OST_SZ_REC = 0x10600000 | (OST_SAN_WRITE << 8),
894 OST_RAID1_REC = 0x10600000 | ((OST_SAN_WRITE + 1) << 8),
895 MDS_UNLINK_REC = 0x10610000 | (MDS_REINT << 8) | REINT_UNLINK,
896 OBD_CFG_REC = 0x10620000,
897 PTL_CFG_REC = 0x10630000,
898 LLOG_GEN_REC = 0x10640000,
899 LLOG_HDR_MAGIC = 0x10645539,
900 LLOG_LOGID_MAGIC = 0x1064553b,
903 /* Log record header - stored in little endian order.
904 * Each record must start with this struct, end with a llog_rec_tail,
905 * and be a multiple of 256 bits in size.
907 struct llog_rec_hdr {
914 struct llog_rec_tail {
919 struct llog_logid_rec {
920 struct llog_rec_hdr lid_hdr;
921 struct llog_logid lid_id;
923 struct llog_rec_tail lid_tail;
924 } __attribute__((packed));
926 struct llog_create_rec {
927 struct llog_rec_hdr lcr_hdr;
928 struct ll_fid lcr_fid;
932 struct llog_rec_tail lcr_tail;
933 } __attribute__((packed));
935 struct llog_orphan_rec {
936 struct llog_rec_hdr lor_hdr;
940 struct llog_rec_tail lor_tail;
941 } __attribute__((packed));
943 struct llog_unlink_rec {
944 struct llog_rec_hdr lur_hdr;
948 struct llog_rec_tail lur_tail;
949 } __attribute__((packed));
951 struct llog_size_change_rec {
952 struct llog_rec_hdr lsc_hdr;
953 struct ll_fid lsc_fid;
956 struct llog_rec_tail lsc_tail;
957 } __attribute__((packed));
962 } __attribute__((packed));
964 struct llog_gen_rec {
965 struct llog_rec_hdr lgr_hdr;
966 struct llog_gen lgr_gen;
967 struct llog_rec_tail lgr_tail;
969 /* On-disk header structure of each log object, stored in little endian order */
970 #define LLOG_CHUNK_SIZE 8192
971 #define LLOG_HEADER_SIZE (96)
972 #define LLOG_BITMAP_BYTES (LLOG_CHUNK_SIZE - LLOG_HEADER_SIZE)
974 #define LLOG_MIN_REC_SIZE (24) /* round(llog_rec_hdr + llog_rec_tail) */
976 /* flags for the logs */
977 #define LLOG_F_ZAP_WHEN_EMPTY 0x1
978 #define LLOG_F_IS_CAT 0x2
979 #define LLOG_F_IS_PLAIN 0x4
981 struct llog_log_hdr {
982 struct llog_rec_hdr llh_hdr;
985 __u32 llh_bitmap_offset;
989 /* for a catlog the first plain slot is next to it */
990 struct obd_uuid llh_tgtuuid;
991 __u32 llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32) - 23];
992 __u32 llh_bitmap[LLOG_BITMAP_BYTES/sizeof(__u32)];
993 struct llog_rec_tail llh_tail;
994 } __attribute__((packed));
996 /* log cookies are used to reference a specific log file and a record therein */
998 struct llog_logid lgc_lgl;
1002 } __attribute__((packed));
1005 enum llogd_rpc_ops {
1006 LLOG_ORIGIN_HANDLE_CREATE = 501,
1007 LLOG_ORIGIN_HANDLE_NEXT_BLOCK = 502,
1008 LLOG_ORIGIN_HANDLE_READ_HEADER = 503,
1009 LLOG_ORIGIN_HANDLE_WRITE_REC = 504,
1010 LLOG_ORIGIN_HANDLE_CLOSE = 505,
1011 LLOG_ORIGIN_CONNECT = 506,
1012 LLOG_CATINFO = 507, /* for lfs catinfo */
1016 struct llog_logid lgd_logid;
1018 __u32 lgd_llh_flags;
1020 __u32 lgd_saved_index;
1022 __u64 lgd_cur_offset;
1023 } __attribute__((packed));
1025 struct llogd_conn_body {
1026 struct llog_gen lgdc_gen;
1027 struct llog_logid lgdc_logid;
1028 __u32 lgdc_ctxt_idx;
1029 } __attribute__((packed));
1031 extern void lustre_swab_llogd_body (struct llogd_body *d);
1032 extern void lustre_swab_llog_hdr (struct llog_log_hdr *h);
1033 extern void lustre_swab_llogd_conn_body (struct llogd_conn_body *d);
1035 static inline struct ll_fid *obdo_fid(struct obdo *oa)
1037 return (struct ll_fid *)(oa->o_inline + sizeof(struct lustre_handle) +
1038 sizeof(struct llog_cookie));