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
83 /* FOO_REQUEST_PORTAL is for incoming requests on the FOO
84 * FOO_REPLY_PORTAL is for incoming replies on the FOO
85 * FOO_BULK_PORTAL is for incoming bulk on the FOO
88 #define CONNMGR_REQUEST_PORTAL 1
89 #define CONNMGR_REPLY_PORTAL 2
90 //#define OSC_REQUEST_PORTAL 3
91 #define OSC_REPLY_PORTAL 4
92 //#define OSC_BULK_PORTAL 5
93 #define OST_REQUEST_PORTAL 6
94 #define OST_CREATE_PORTAL 7
95 #define OST_BULK_PORTAL 8
96 //#define MDC_REQUEST_PORTAL 9
97 #define MDC_REPLY_PORTAL 10
98 //#define MDC_BULK_PORTAL 11
99 #define MDS_REQUEST_PORTAL 12
100 //#define MDS_REPLY_PORTAL 13
101 #define MDS_BULK_PORTAL 14
102 #define LDLM_CB_REQUEST_PORTAL 15
103 #define LDLM_CB_REPLY_PORTAL 16
104 #define LDLM_CANCEL_REQUEST_PORTAL 17
105 #define LDLM_CANCEL_REPLY_PORTAL 18
106 #define PTLBD_REQUEST_PORTAL 19
107 #define PTLBD_REPLY_PORTAL 20
108 #define PTLBD_BULK_PORTAL 21
109 #define MDS_SETATTR_PORTAL 22
110 #define MDS_READPAGE_PORTAL 23
111 #define MGMT_REQUEST_PORTAL 24
112 #define MGMT_REPLY_PORTAL 25
113 #define MGMT_CLI_REQUEST_PORTAL 26
114 #define MGMT_CLI_REPLY_PORTAL 27
119 #define SVC_RUNNING 8
120 #define SVC_STOPPING 16
121 #define SVC_STOPPED 32
124 #define PTL_RPC_MSG_REQUEST 4711
125 #define PTL_RPC_MSG_ERR 4712
126 #define PTL_RPC_MSG_REPLY 4713
128 #define PTLRPC_MSG_MAGIC 0x0BD00BD0
131 #define PTLRPC_MSG_VERSION 0x00000003
132 #define LUSTRE_MDS_VERSION (0x00040000|PTLRPC_MSG_VERSION)
133 #define LUSTRE_OST_VERSION (0x00040000|PTLRPC_MSG_VERSION)
134 #define LUSTRE_DLM_VERSION (0x00040000|PTLRPC_MSG_VERSION)
136 struct lustre_handle {
139 #define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL
141 /* we depend on this structure to be 8-byte aligned */
142 /* this type is only endian-adjusted in lustre_unpack_msg() */
144 struct lustre_handle handle;
150 __u64 last_committed;
159 /* Flags that are operation-specific go in the top 16 bits. */
160 #define MSG_OP_FLAG_MASK 0xffff0000
161 #define MSG_OP_FLAG_SHIFT 16
163 /* Flags that apply to all requests are in the bottom 16 bits */
164 #define MSG_GEN_FLAG_MASK 0x0000ffff
165 #define MSG_LAST_REPLAY 1
169 static inline int lustre_msg_get_flags(struct lustre_msg *msg)
171 return (msg->flags & MSG_GEN_FLAG_MASK);
174 static inline void lustre_msg_add_flags(struct lustre_msg *msg, int flags)
176 msg->flags |= MSG_GEN_FLAG_MASK & flags;
179 static inline void lustre_msg_set_flags(struct lustre_msg *msg, int flags)
181 msg->flags &= ~MSG_GEN_FLAG_MASK;
182 lustre_msg_add_flags(msg, flags);
185 static inline void lustre_msg_clear_flags(struct lustre_msg *msg, int flags)
187 msg->flags &= ~(MSG_GEN_FLAG_MASK & flags);
190 static inline int lustre_msg_get_op_flags(struct lustre_msg *msg)
192 return (msg->flags >> MSG_OP_FLAG_SHIFT);
195 static inline void lustre_msg_add_op_flags(struct lustre_msg *msg, int flags)
197 msg->flags |= ((flags & MSG_GEN_FLAG_MASK) << MSG_OP_FLAG_SHIFT);
200 static inline void lustre_msg_set_op_flags(struct lustre_msg *msg, int flags)
202 msg->flags &= ~MSG_OP_FLAG_MASK;
203 lustre_msg_add_op_flags(msg, flags);
207 * Flags for all connect opcodes (MDS_CONNECT, OST_CONNECT)
210 #define MSG_CONNECT_RECOVERING 0x1
211 #define MSG_CONNECT_RECONNECT 0x2
212 #define MSG_CONNECT_REPLAYABLE 0x4
213 //#define MSG_CONNECT_PEER 0x8
214 #define MSG_CONNECT_LIBCLIENT 0x10
217 * OST requests: OBDO & OBD request records
222 OST_REPLY = 0, /* reply ? */
242 #define OST_FIRST_OPC OST_REPLY
244 typedef uint64_t obd_id;
245 typedef uint64_t obd_gr;
246 typedef uint64_t obd_time;
247 typedef uint64_t obd_size;
248 typedef uint64_t obd_off;
249 typedef uint64_t obd_blocks;
250 typedef uint32_t obd_blksize;
251 typedef uint32_t obd_mode;
252 typedef uint32_t obd_uid;
253 typedef uint32_t obd_gid;
254 typedef uint32_t obd_flag;
255 typedef uint32_t obd_count;
257 #define OBD_FL_INLINEDATA (0x00000001)
258 #define OBD_FL_OBDMDEXISTS (0x00000002)
259 #define OBD_FL_DELORPHAN (0x00000004) /* if set in o_flags delete orphans */
260 #define OBD_FL_NORPC (0x00000008) // if set in o_flags set in OSC not OST
261 #define OBD_FL_IDONLY (0x00000010) // if set in o_flags only adjust obj id
262 #define OBD_FL_RECREATE_OBJS (0x00000020) // recreate missing obj
264 #define OBD_INLINESZ 64
266 /* Note: 64-bit types are 64-bit aligned in structure */
274 obd_blocks o_blocks; /* brw: cli sent cached bytes */
276 obd_blksize o_blksize; /* optimal IO blocksize */
277 obd_mode o_mode; /* brw: cli sent cache remain */
281 obd_count o_nlink; /* brw: checksum */
282 obd_count o_generation;
283 obd_flag o_valid; /* hot fields in this obdo */
284 obd_count o_misc; /* brw: o_dropped */
285 __u32 o_easize; /* epoch in ost writes */
286 char o_inline[OBD_INLINESZ]; /* fid in ost writes */
289 #define o_dirty o_blocks
290 #define o_undirty o_mode
291 #define o_dropped o_misc
292 #define o_cksum o_nlink
294 extern void lustre_swab_obdo (struct obdo *o);
296 #define LOV_MAGIC_V1 0x0BD10BD0
297 #define LOV_MAGIC LOV_MAGIC_V1
299 #define LOV_PATTERN_RAID0 0x001 /* stripes are used round-robin */
300 #define LOV_PATTERN_RAID1 0x002 /* stripes are mirrors of each other */
301 #define LOV_PATTERN_FIRST 0x100 /* first stripe is not in round-robin */
303 #define lov_ost_data lov_ost_data_v1
304 struct lov_ost_data_v1 { /* per-stripe data structure (little-endian)*/
305 __u64 l_object_id; /* OST object ID */
306 __u64 l_object_gr; /* OST object group (creating MDS number) */
307 __u32 l_ost_gen; /* generation of this l_ost_idx */
308 __u32 l_ost_idx; /* OST index in LOV (lov_tgt_desc->tgts) */
311 #define lov_mds_md lov_mds_md_v1
312 struct lov_mds_md_v1 { /* LOV EA mds/wire data (little-endian) */
313 __u32 lmm_magic; /* magic number = LOV_MAGIC_V1 */
314 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
315 __u64 lmm_object_id; /* LOV object ID */
316 __u64 lmm_object_gr; /* LOV object group */
317 __u32 lmm_stripe_size; /* size of stripe in bytes */
318 __u32 lmm_stripe_count; /* num stripes in use for this object */
319 struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
322 #define LOV_MAGIC_V0 0x0BD00BD0
324 struct lov_ost_data_v0 { /* per-stripe data structure (little-endian)*/
325 __u64 l_object_id; /* OST object ID */
328 struct lov_mds_md_v0 { /* LOV EA mds/wire data (little-endian) */
329 __u32 lmm_magic; /* magic number = LOV_MAGIC_V0 */
330 __u64 lmm_object_id; /* LOV object ID */
331 __u32 lmm_stripe_size; /* size of the stripe in bytes (not RAID1) */
332 __u32 lmm_stripe_offset; /* starting stripe offset in lmm_objects */
333 __u16 lmm_stripe_count; /* number of stipes in use for this object */
334 __u16 lmm_ost_count; /* how many OST idx are in this LOV md */
335 struct lov_ost_data_v0 lmm_objects[0];
336 } __attribute__((packed));
338 #define OBD_MD_FLALL (0xffffffff)
339 #define OBD_MD_FLID (0x00000001) /* object ID */
340 #define OBD_MD_FLATIME (0x00000002) /* access time */
341 #define OBD_MD_FLMTIME (0x00000004) /* data modification time */
342 #define OBD_MD_FLCTIME (0x00000008) /* change time */
343 #define OBD_MD_FLSIZE (0x00000010) /* size */
344 #define OBD_MD_FLBLOCKS (0x00000020) /* allocated blocks count */
345 #define OBD_MD_FLBLKSZ (0x00000040) /* block size */
346 #define OBD_MD_FLMODE (0x00000080) /* access bits (mode & ~S_IFMT) */
347 #define OBD_MD_FLTYPE (0x00000100) /* object type (mode & S_IFMT) */
348 #define OBD_MD_FLUID (0x00000200) /* user ID */
349 #define OBD_MD_FLGID (0x00000400) /* group ID */
350 #define OBD_MD_FLFLAGS (0x00000800) /* flags word */
351 #define OBD_MD_FLNLINK (0x00002000) /* link count */
352 #define OBD_MD_FLGENER (0x00004000) /* generation number */
353 #define OBD_MD_FLINLINE (0x00008000) /* inline data */
354 #define OBD_MD_FLRDEV (0x00010000) /* device number */
355 #define OBD_MD_FLEASIZE (0x00020000) /* extended attribute data */
356 #define OBD_MD_LINKNAME (0x00040000) /* symbolic link target */
357 #define OBD_MD_FLHANDLE (0x00080000) /* file handle */
358 #define OBD_MD_FLCKSUM (0x00100000) /* bulk data checksum */
359 #define OBD_MD_FLQOS (0x00200000) /* quality of service stats */
360 #define OBD_MD_FLOSCOPQ (0x00400000) /* osc opaque data */
361 #define OBD_MD_FLCOOKIE (0x00800000) /* log cancellation cookie */
362 #define OBD_MD_FLGROUP (0x01000000) /* group */
363 #define OBD_MD_FLIFID (0x02000000) /* ->ost write inline fid */
364 #define OBD_MD_FLEPOCH (0x04000000) /* ->ost write easize is epoch */
365 #define OBD_MD_FLGRANT (0x08000000) /* ost preallocation space grant */
366 #define OBD_MD_FLDIREA (0x10000000) /* dir's extended attribute data */
367 #define OBD_MD_FLNOTOBD (~(OBD_MD_FLBLOCKS | OBD_MD_LINKNAME|\
368 OBD_MD_FLEASIZE | OBD_MD_FLHANDLE | OBD_MD_FLCKSUM|\
369 OBD_MD_FLQOS | OBD_MD_FLOSCOPQ | OBD_MD_FLCOOKIE))
372 static inline struct lustre_handle *obdo_handle(struct obdo *oa)
374 return (struct lustre_handle *)oa->o_inline;
377 static inline struct llog_cookie *obdo_logcookie(struct obdo *oa)
379 return (struct llog_cookie *)(oa->o_inline +
380 sizeof(struct lustre_handle));
382 /* don't forget obdo_fid which is way down at the bottom so it can
383 * come after the definition of llog_cookie */
399 extern void lustre_swab_obd_statfs (struct obd_statfs *os);
401 /* ost_body.data values for OST_BRW */
403 #define OBD_BRW_READ 0x01
404 #define OBD_BRW_WRITE 0x02
405 #define OBD_BRW_RWMASK (OBD_BRW_READ | OBD_BRW_WRITE)
406 #define OBD_BRW_SYNC 0x08
407 #define OBD_BRW_CHECK 0x10
408 #define OBD_BRW_FROM_GRANT 0x20 /* the osc manages this under llite */
409 #define OBD_BRW_GRANTED 0x40 /* the ost manages this */
411 #define OBD_OBJECT_EOF 0xffffffffffffffffULL
413 #define OST_MIN_PRECREATE 32
414 #define OST_MAX_PRECREATE 20000
423 extern void lustre_swab_obd_ioobj (struct obd_ioobj *ioo);
425 /* multiple of 8 bytes => can array */
426 struct niobuf_remote {
432 extern void lustre_swab_niobuf_remote (struct niobuf_remote *nbr);
434 /* request structure for OST's */
436 #define OST_REQ_HAS_OA1 0x1
442 extern void lustre_swab_ost_body (struct ost_body *b);
443 extern void lustre_swab_ost_last_id(obd_id *id);
445 /* lock value block communicated between the filter and llite */
455 extern void lustre_swab_ost_lvb(struct ost_lvb *);
464 MDS_GETATTR_NAME = 34,
475 MDS_DONE_WRITING = 45,
479 #define MDS_FIRST_OPC MDS_GETATTR
485 #define REINT_SETATTR 1
486 #define REINT_CREATE 2
488 #define REINT_UNLINK 4
489 #define REINT_RENAME 5
493 /* the disposition of the intent outlines what was executed */
494 #define DISP_IT_EXECD 0x01
495 #define DISP_LOOKUP_EXECD 0x02
496 #define DISP_LOOKUP_NEG 0x04
497 #define DISP_LOOKUP_POS 0x08
498 #define DISP_OPEN_CREATE 0x10
499 #define DISP_OPEN_OPEN 0x20
500 #define DISP_ENQ_COMPLETE 0x40
508 extern void lustre_swab_ll_fid (struct ll_fid *fid);
510 #define MDS_STATUS_CONN 1
511 #define MDS_STATUS_LOV 2
513 struct mds_status_req {
518 extern void lustre_swab_mds_status_req (struct mds_status_req *r);
520 #define MDS_BFLAG_UNCOMMITTED_WRITES 0x1
525 struct lustre_handle handle;
526 __u64 size; /* Offset, in the case of MDS_READPAGE */
527 __u64 blocks; /* XID, in the case of MDS_READPAGE */
529 __u32 ino; /* make this a __u64 */
540 __u32 flags; /* from vfs for pin/unpin, MDS_BFLAG for close */
542 __u32 nlink; /* #bytes to read in the case of MDS_READPAGE */
549 extern void lustre_swab_mds_body (struct mds_body *b);
552 struct mds_rec_setattr {
559 struct ll_fid sa_fid;
570 /* Remove this once we declare it in include/linux/fs.h (v21 kernel patch?) */
571 #ifndef ATTR_CTIME_SET
572 #define ATTR_CTIME_SET 0x2000
575 extern void lustre_swab_mds_rec_setattr (struct mds_rec_setattr *sa);
578 #define FMODE_READ 00000001
579 #define FMODE_WRITE 00000002
582 #define FMODE_EXEC 00000004
584 #define MDS_OPEN_CREAT 00000100
585 #define MDS_OPEN_EXCL 00000200
586 #define MDS_OPEN_TRUNC 00001000
587 #define MDS_OPEN_APPEND 00002000
588 #define MDS_OPEN_SYNC 00010000
589 #define MDS_OPEN_DIRECTORY 00200000
591 #define MDS_OPEN_DELAY_CREATE 0100000000 /* delay initial object create */
592 #define MDS_OPEN_HAS_EA 010000000000 /* specify object create pattern */
593 #define MDS_OPEN_HAS_OBJS 020000000000 /* Just set the EA the obj exist */
595 struct mds_rec_create {
600 __u32 cr_flags; /* for use with open */
602 struct ll_fid cr_fid;
603 struct ll_fid cr_replayfid;
610 extern void lustre_swab_mds_rec_create (struct mds_rec_create *cr);
612 struct mds_rec_link {
619 struct ll_fid lk_fid1;
620 struct ll_fid lk_fid2;
624 extern void lustre_swab_mds_rec_link (struct mds_rec_link *lk);
626 struct mds_rec_unlink {
633 struct ll_fid ul_fid1;
634 struct ll_fid ul_fid2;
638 extern void lustre_swab_mds_rec_unlink (struct mds_rec_unlink *ul);
640 struct mds_rec_rename {
647 struct ll_fid rn_fid1;
648 struct ll_fid rn_fid2;
652 extern void lustre_swab_mds_rec_rename (struct mds_rec_rename *rn);
655 * LOV data structures
658 #define LOV_MAX_UUID_BUFFER_SIZE 8192
659 /* The size of the buffer the lov/mdc reserves for the
660 * array of UUIDs returned by the MDS. With the current
661 * protocol, this will limit the max number of OSTs per LOV */
664 __u32 ld_tgt_count; /* how many OBD's */
665 __u32 ld_active_tgt_count; /* how many active */
666 __u32 ld_default_stripe_count; /* how many objects are used */
667 __u32 ld_pattern; /* PATTERN_RAID0, PATTERN_RAID1 */
668 __u64 ld_default_stripe_size; /* in bytes */
669 __u64 ld_default_stripe_offset; /* in bytes */
670 struct obd_uuid ld_uuid;
673 extern void lustre_swab_lov_desc (struct lov_desc *ld);
678 /* opcodes -- MUST be distinct from OST/MDS opcodes */
683 LDLM_BL_CALLBACK = 104,
684 LDLM_CP_CALLBACK = 105,
685 LDLM_GL_CALLBACK = 106,
688 #define LDLM_FIRST_OPC LDLM_ENQUEUE
690 #define RES_NAME_SIZE 4
692 __u64 name[RES_NAME_SIZE];
695 extern void lustre_swab_ldlm_res_id (struct ldlm_res_id *id);
715 __u64 blocking_export;
720 /* it's important that the fields of the ldlm_extent structure match
721 * the first fields of the ldlm_flock structure because there is only
722 * one ldlm_swab routine to process the ldlm_policy_data_t union. if
723 * this ever changes we will need to swab the union differently based
724 * on the resource type. */
727 struct ldlm_extent l_extent;
728 struct ldlm_flock l_flock;
729 } ldlm_policy_data_t;
731 extern void lustre_swab_ldlm_policy_data (ldlm_policy_data_t *d);
737 extern void lustre_swab_ldlm_intent (struct ldlm_intent *i);
739 struct ldlm_resource_desc {
742 struct ldlm_res_id lr_name;
745 extern void lustre_swab_ldlm_resource_desc (struct ldlm_resource_desc *r);
747 struct ldlm_lock_desc {
748 struct ldlm_resource_desc l_resource;
749 ldlm_mode_t l_req_mode;
750 ldlm_mode_t l_granted_mode;
751 ldlm_policy_data_t l_policy_data;
754 extern void lustre_swab_ldlm_lock_desc (struct ldlm_lock_desc *l);
756 struct ldlm_request {
759 struct ldlm_lock_desc lock_desc;
760 struct lustre_handle lock_handle1;
761 struct lustre_handle lock_handle2;
764 extern void lustre_swab_ldlm_request (struct ldlm_request *rq);
769 struct ldlm_lock_desc lock_desc;
770 struct lustre_handle lock_handle;
771 __u64 lock_policy_res1;
772 __u64 lock_policy_res2;
775 extern void lustre_swab_ldlm_reply (struct ldlm_reply *r);
778 * ptlbd, portal block device requests
786 PTLBD_DISCONNECT = 205,
789 #define PTLBD_FIRST_OPC PTLBD_QUERY
799 extern void lustre_swab_ptlbd_op (struct ptlbd_op *op);
808 extern void lustre_swab_ptlbd_niob (struct ptlbd_niob *n);
815 extern void lustre_swab_ptlbd_rsp (struct ptlbd_rsp *r);
818 * Opcodes for management/monitoring node.
823 MGMT_EXCEPTION, /* node died, etc. */
826 #define MGMT_FIRST_OPC MGMT_CONNECT
829 * Opcodes for multiple servers.
837 #define OBD_FIRST_OPC OBD_PING
839 /* catalog of log objects */
841 /* Identifier for a single log object */
846 } __attribute__((packed));
848 /* Records written to the CATALOGS list */
849 #define CATLIST "CATALOGS"
851 struct llog_logid lci_logid;
852 __u32 lci_padding[3];
853 } __attribute__((packed));
855 /* Log data record types - there is no specific reason that these need to
856 * be related to the RPC opcodes, but no reason not to (may be handy later?)
859 OST_SZ_REC = 0x10600000 | (OST_SAN_WRITE << 8),
860 OST_RAID1_REC = 0x10600000 | ((OST_SAN_WRITE + 1) << 8),
861 MDS_UNLINK_REC = 0x10610000 | (MDS_REINT << 8) | REINT_UNLINK,
862 OBD_CFG_REC = 0x10620000,
863 PTL_CFG_REC = 0x10630000,
864 LLOG_GEN_REC = 0x10640000,
865 LLOG_HDR_MAGIC = 0x10645539,
866 LLOG_LOGID_MAGIC = 0x1064553b,
869 /* Log record header - stored in little endian order.
870 * Each record must start with this struct, end with a llog_rec_tail,
871 * and be a multiple of 256 bits in size.
873 struct llog_rec_hdr {
880 struct llog_rec_tail {
885 struct llog_logid_rec {
886 struct llog_rec_hdr lid_hdr;
887 struct llog_logid lid_id;
889 struct llog_rec_tail lid_tail;
890 } __attribute__((packed));
892 struct llog_create_rec {
893 struct llog_rec_hdr lcr_hdr;
894 struct ll_fid lcr_fid;
898 struct llog_rec_tail lcr_tail;
899 } __attribute__((packed));
901 struct llog_orphan_rec {
902 struct llog_rec_hdr lor_hdr;
906 struct llog_rec_tail lor_tail;
907 } __attribute__((packed));
909 struct llog_unlink_rec {
910 struct llog_rec_hdr lur_hdr;
914 struct llog_rec_tail lur_tail;
915 } __attribute__((packed));
917 struct llog_size_change_rec {
918 struct llog_rec_hdr lsc_hdr;
919 struct ll_fid lsc_fid;
922 struct llog_rec_tail lsc_tail;
923 } __attribute__((packed));
928 } __attribute__((packed));
930 struct llog_gen_rec {
931 struct llog_rec_hdr lgr_hdr;
932 struct llog_gen lgr_gen;
933 struct llog_rec_tail lgr_tail;
935 /* On-disk header structure of each log object, stored in little endian order */
936 #define LLOG_CHUNK_SIZE 8192
937 #define LLOG_HEADER_SIZE (96)
938 #define LLOG_BITMAP_BYTES (LLOG_CHUNK_SIZE - LLOG_HEADER_SIZE)
940 #define LLOG_MIN_REC_SIZE (24) /* round(llog_rec_hdr + llog_rec_tail) */
942 /* flags for the logs */
943 #define LLOG_F_ZAP_WHEN_EMPTY 0x1
944 #define LLOG_F_IS_CAT 0x2
945 #define LLOG_F_IS_PLAIN 0x4
947 struct llog_log_hdr {
948 struct llog_rec_hdr llh_hdr;
951 __u32 llh_bitmap_offset;
955 /* for a catalog the first plain slot is next to it */
956 struct obd_uuid llh_tgtuuid;
957 __u32 llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32) - 23];
958 __u32 llh_bitmap[LLOG_BITMAP_BYTES/sizeof(__u32)];
959 struct llog_rec_tail llh_tail;
960 } __attribute__((packed));
962 #define LLOG_BITMAP_SIZE(llh) ((llh->llh_hdr.lrh_len - \
963 llh->llh_bitmap_offset - \
964 sizeof(llh->llh_tail)) * 8)
966 /* log cookies are used to reference a specific log file and a record therein */
968 struct llog_logid lgc_lgl;
972 } __attribute__((packed));
976 LLOG_ORIGIN_HANDLE_CREATE = 501,
977 LLOG_ORIGIN_HANDLE_NEXT_BLOCK = 502,
978 LLOG_ORIGIN_HANDLE_READ_HEADER = 503,
979 LLOG_ORIGIN_HANDLE_WRITE_REC = 504,
980 LLOG_ORIGIN_HANDLE_CLOSE = 505,
981 LLOG_ORIGIN_CONNECT = 506,
982 LLOG_CATINFO = 507, /* for lfs catinfo */
986 struct llog_logid lgd_logid;
990 __u32 lgd_saved_index;
992 __u64 lgd_cur_offset;
993 } __attribute__((packed));
995 struct llogd_conn_body {
996 struct llog_gen lgdc_gen;
997 struct llog_logid lgdc_logid;
999 } __attribute__((packed));
1001 extern void lustre_swab_llogd_body (struct llogd_body *d);
1002 extern void lustre_swab_llog_hdr (struct llog_log_hdr *h);
1003 extern void lustre_swab_llogd_conn_body (struct llogd_conn_body *d);
1005 static inline struct ll_fid *obdo_fid(struct obdo *oa)
1007 return (struct ll_fid *)(oa->o_inline + sizeof(struct lustre_handle) +
1008 sizeof(struct llog_cookie));