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 <asm/byteorder.h>
58 # include <linux/fs.h> /* to check for FMODE_EXEC, lest we redefine */
61 # include <sys/types.h>
63 # include <asm/types.h>
66 # include <portals/list.h>
70 /* Defn's shared with user-space. */
71 #include <linux/lustre_user.h>
74 * this file contains all data structures used in Lustre interfaces:
75 * - obdo and obd_request records
76 * - mds_request records
88 static inline int obd_uuid_equals(struct obd_uuid *u1, struct obd_uuid *u2)
90 return strcmp(u1->uuid, u2->uuid) == 0;
93 static inline void obd_str2uuid(struct obd_uuid *uuid, char *tmp)
95 strncpy(uuid->uuid, tmp, sizeof(*uuid));
96 uuid->uuid[sizeof(*uuid) - 1] = '\0';
99 /* FOO_REQUEST_PORTAL is for incoming requests on the FOO
100 * FOO_REPLY_PORTAL is for incoming replies on the FOO
101 * FOO_BULK_PORTAL is for incoming bulk on the FOO
104 #define CONNMGR_REQUEST_PORTAL 1
105 #define CONNMGR_REPLY_PORTAL 2
106 //#define OSC_REQUEST_PORTAL 3
107 #define OSC_REPLY_PORTAL 4
108 //#define OSC_BULK_PORTAL 5
109 #define OST_REQUEST_PORTAL 6
110 #define OST_CREATE_PORTAL 7
111 #define OST_BULK_PORTAL 8
112 //#define MDC_REQUEST_PORTAL 9
113 #define MDC_REPLY_PORTAL 10
114 //#define MDC_BULK_PORTAL 11
115 #define MDS_REQUEST_PORTAL 12
116 //#define MDS_REPLY_PORTAL 13
117 #define MDS_BULK_PORTAL 14
118 #define LDLM_CB_REQUEST_PORTAL 15
119 #define LDLM_CB_REPLY_PORTAL 16
120 #define LDLM_CANCEL_REQUEST_PORTAL 17
121 #define LDLM_CANCEL_REPLY_PORTAL 18
122 #define PTLBD_REQUEST_PORTAL 19
123 #define PTLBD_REPLY_PORTAL 20
124 #define PTLBD_BULK_PORTAL 21
125 #define MDS_SETATTR_PORTAL 22
126 #define MDS_READPAGE_PORTAL 23
127 #define MGMT_REQUEST_PORTAL 24
128 #define MGMT_REPLY_PORTAL 25
129 #define MGMT_CLI_REQUEST_PORTAL 26
130 #define MGMT_CLI_REPLY_PORTAL 27
135 #define SVC_RUNNING 8
136 #define SVC_STOPPING 16
137 #define SVC_STOPPED 32
140 #define PTL_RPC_MSG_REQUEST 4711
141 #define PTL_RPC_MSG_ERR 4712
142 #define PTL_RPC_MSG_REPLY 4713
144 #define PTLRPC_MSG_MAGIC 0x0BD00BD0
147 #define PTLRPC_MSG_VERSION 0x00000003
148 #define LUSTRE_MDS_VERSION (0x00040000|PTLRPC_MSG_VERSION)
149 #define LUSTRE_OST_VERSION (0x00040000|PTLRPC_MSG_VERSION)
150 #define LUSTRE_DLM_VERSION (0x00040000|PTLRPC_MSG_VERSION)
152 struct lustre_handle {
155 #define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL
157 /* we depend on this structure to be 8-byte aligned */
158 /* this type is only endian-adjusted in lustre_unpack_msg() */
160 struct lustre_handle handle;
166 __u64 last_committed;
175 /* Flags that are operation-specific go in the top 16 bits. */
176 #define MSG_OP_FLAG_MASK 0xffff0000
177 #define MSG_OP_FLAG_SHIFT 16
179 /* Flags that apply to all requests are in the bottom 16 bits */
180 #define MSG_GEN_FLAG_MASK 0x0000ffff
181 #define MSG_LAST_REPLAY 1
185 static inline int lustre_msg_get_flags(struct lustre_msg *msg)
187 return (msg->flags & MSG_GEN_FLAG_MASK);
190 static inline void lustre_msg_add_flags(struct lustre_msg *msg, int flags)
192 msg->flags |= MSG_GEN_FLAG_MASK & flags;
195 static inline void lustre_msg_set_flags(struct lustre_msg *msg, int flags)
197 msg->flags &= ~MSG_GEN_FLAG_MASK;
198 lustre_msg_add_flags(msg, flags);
201 static inline void lustre_msg_clear_flags(struct lustre_msg *msg, int flags)
203 msg->flags &= ~(MSG_GEN_FLAG_MASK & flags);
206 static inline int lustre_msg_get_op_flags(struct lustre_msg *msg)
208 return (msg->flags >> MSG_OP_FLAG_SHIFT);
211 static inline void lustre_msg_add_op_flags(struct lustre_msg *msg, int flags)
213 msg->flags |= ((flags & MSG_GEN_FLAG_MASK) << MSG_OP_FLAG_SHIFT);
216 static inline void lustre_msg_set_op_flags(struct lustre_msg *msg, int flags)
218 msg->flags &= ~MSG_OP_FLAG_MASK;
219 lustre_msg_add_op_flags(msg, flags);
223 * Flags for all connect opcodes (MDS_CONNECT, OST_CONNECT)
226 #define MSG_CONNECT_RECOVERING 0x1
227 #define MSG_CONNECT_RECONNECT 0x2
228 #define MSG_CONNECT_REPLAYABLE 0x4
229 //#define MSG_CONNECT_PEER 0x8
230 #define MSG_CONNECT_LIBCLIENT 0x10
233 * OST requests: OBDO & OBD request records
238 OST_REPLY = 0, /* reply ? */
258 #define OST_FIRST_OPC OST_REPLY
260 typedef uint64_t obd_id;
261 typedef uint64_t obd_gr;
262 typedef uint64_t obd_time;
263 typedef uint64_t obd_size;
264 typedef uint64_t obd_off;
265 typedef uint64_t obd_blocks;
266 typedef uint32_t obd_blksize;
267 typedef uint32_t obd_mode;
268 typedef uint32_t obd_uid;
269 typedef uint32_t obd_gid;
270 typedef uint32_t obd_flag;
271 typedef uint32_t obd_count;
273 #define OBD_FL_INLINEDATA (0x00000001)
274 #define OBD_FL_OBDMDEXISTS (0x00000002)
275 #define OBD_FL_DELORPHAN (0x00000004) /* if set in o_flags delete orphans */
276 #define OBD_FL_NORPC (0x00000008) // if set in o_flags set in OSC not OST
277 #define OBD_FL_IDONLY (0x00000010) // if set in o_flags only adjust obj id
278 #define OBD_FL_RECREATE_OBJS (0x00000020) // recreate missing obj
280 #define OBD_INLINESZ 64
282 /* Note: 64-bit types are 64-bit aligned in structure */
290 obd_blocks o_blocks; /* brw: cli sent cached bytes */
292 obd_blksize o_blksize; /* optimal IO blocksize */
293 obd_mode o_mode; /* brw: cli sent cache remain */
297 obd_count o_nlink; /* brw: checksum */
298 obd_count o_generation;
299 obd_flag o_valid; /* hot fields in this obdo */
301 __u32 o_easize; /* epoch in ost writes */
303 char o_inline[OBD_INLINESZ]; /* fid in ost writes */
306 #define o_dirty o_blocks
307 #define o_undirty o_mode
308 #define o_dropped o_misc
309 #define o_cksum o_nlink
311 extern void lustre_swab_obdo (struct obdo *o);
313 #define LOV_MAGIC_V1 0x0BD10BD0
314 #define LOV_MAGIC LOV_MAGIC_V1
316 #define LOV_PATTERN_RAID0 0x001 /* stripes are used round-robin */
317 #define LOV_PATTERN_RAID1 0x002 /* stripes are mirrors of each other */
318 #define LOV_PATTERN_FIRST 0x100 /* first stripe is not in round-robin */
320 #define lov_ost_data lov_ost_data_v1
321 struct lov_ost_data_v1 { /* per-stripe data structure (little-endian)*/
322 __u64 l_object_id; /* OST object ID */
323 __u64 l_object_gr; /* OST object group (creating MDS number) */
324 __u32 l_ost_gen; /* generation of this l_ost_idx */
325 __u32 l_ost_idx; /* OST index in LOV (lov_tgt_desc->tgts) */
328 #define lov_mds_md lov_mds_md_v1
329 struct lov_mds_md_v1 { /* LOV EA mds/wire data (little-endian) */
330 __u32 lmm_magic; /* magic number = LOV_MAGIC_V1 */
331 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
332 __u64 lmm_object_id; /* LOV object ID */
333 __u64 lmm_object_gr; /* LOV object group */
334 __u32 lmm_stripe_size; /* size of stripe in bytes */
335 __u32 lmm_stripe_count; /* num stripes in use for this object */
336 struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
339 #define LOV_MAGIC_V0 0x0BD00BD0
341 struct lov_ost_data_v0 { /* per-stripe data structure (little-endian)*/
342 __u64 l_object_id; /* OST object ID */
345 struct lov_mds_md_v0 { /* LOV EA mds/wire data (little-endian) */
346 __u32 lmm_magic; /* magic number = LOV_MAGIC_V0 */
347 __u64 lmm_object_id; /* LOV object ID */
348 __u32 lmm_stripe_size; /* size of the stripe in bytes (not RAID1) */
349 __u32 lmm_stripe_offset; /* starting stripe offset in lmm_objects */
350 __u16 lmm_stripe_count; /* number of stipes in use for this object */
351 __u16 lmm_ost_count; /* how many OST idx are in this LOV md */
352 struct lov_ost_data_v0 lmm_objects[0];
353 } __attribute__((packed));
355 #define OBD_MD_FLALL (0xffffffff)
356 #define OBD_MD_FLID (0x00000001) /* object ID */
357 #define OBD_MD_FLATIME (0x00000002) /* access time */
358 #define OBD_MD_FLMTIME (0x00000004) /* data modification time */
359 #define OBD_MD_FLCTIME (0x00000008) /* change time */
360 #define OBD_MD_FLSIZE (0x00000010) /* size */
361 #define OBD_MD_FLBLOCKS (0x00000020) /* allocated blocks count */
362 #define OBD_MD_FLBLKSZ (0x00000040) /* block size */
363 #define OBD_MD_FLMODE (0x00000080) /* access bits (mode & ~S_IFMT) */
364 #define OBD_MD_FLTYPE (0x00000100) /* object type (mode & S_IFMT) */
365 #define OBD_MD_FLUID (0x00000200) /* user ID */
366 #define OBD_MD_FLGID (0x00000400) /* group ID */
367 #define OBD_MD_FLFLAGS (0x00000800) /* flags word */
368 #define OBD_MD_FLNLINK (0x00002000) /* link count */
369 #define OBD_MD_FLGENER (0x00004000) /* generation number */
370 #define OBD_MD_FLINLINE (0x00008000) /* inline data */
371 #define OBD_MD_FLRDEV (0x00010000) /* device number */
372 #define OBD_MD_FLEASIZE (0x00020000) /* extended attribute data */
373 #define OBD_MD_LINKNAME (0x00040000) /* symbolic link target */
374 #define OBD_MD_FLHANDLE (0x00080000) /* file handle */
375 #define OBD_MD_FLCKSUM (0x00100000) /* bulk data checksum */
376 #define OBD_MD_FLQOS (0x00200000) /* quality of service stats */
377 #define OBD_MD_FLOSCOPQ (0x00400000) /* osc opaque data */
378 #define OBD_MD_FLCOOKIE (0x00800000) /* log cancellation cookie */
379 #define OBD_MD_FLGROUP (0x01000000) /* group */
380 #define OBD_MD_FLIFID (0x02000000) /* ->ost write inline fid */
381 #define OBD_MD_FLEPOCH (0x04000000) /* ->ost write easize is epoch */
382 #define OBD_MD_FLGRANT (0x08000000) /* ost preallocation space grant */
383 #define OBD_MD_MDS (0x10000000) /* where an inode lives on */
384 #define OBD_MD_FLNOTOBD (~(OBD_MD_FLBLOCKS | OBD_MD_LINKNAME|\
385 OBD_MD_FLEASIZE | OBD_MD_FLHANDLE | OBD_MD_FLCKSUM|\
386 OBD_MD_FLQOS | OBD_MD_FLOSCOPQ | OBD_MD_FLCOOKIE|\
390 static inline struct lustre_handle *obdo_handle(struct obdo *oa)
392 return (struct lustre_handle *)oa->o_inline;
395 static inline struct llog_cookie *obdo_logcookie(struct obdo *oa)
397 return (struct llog_cookie *)(oa->o_inline +
398 sizeof(struct lustre_handle));
400 /* don't forget obdo_fid which is way down at the bottom so it can
401 * come after the definition of llog_cookie */
417 extern void lustre_swab_obd_statfs (struct obd_statfs *os);
419 /* ost_body.data values for OST_BRW */
421 #define OBD_BRW_READ 0x01
422 #define OBD_BRW_WRITE 0x02
423 #define OBD_BRW_RWMASK (OBD_BRW_READ | OBD_BRW_WRITE)
424 #define OBD_BRW_SYNC 0x08
425 #define OBD_BRW_CHECK 0x10
426 #define OBD_BRW_FROM_GRANT 0x20 /* the osc manages this under llite */
427 #define OBD_BRW_GRANTED 0x40 /* the ost manages this */
429 #define OBD_OBJECT_EOF 0xffffffffffffffffULL
438 extern void lustre_swab_obd_ioobj (struct obd_ioobj *ioo);
440 /* multiple of 8 bytes => can array */
441 struct niobuf_remote {
447 extern void lustre_swab_niobuf_remote (struct niobuf_remote *nbr);
449 /* request structure for OST's */
451 #define OST_REQ_HAS_OA1 0x1
457 extern void lustre_swab_ost_body (struct ost_body *b);
458 extern void lustre_swab_ost_last_id(obd_id *id);
460 /* lock value block communicated between the filter and llite */
470 extern void lustre_swab_ost_lvb(struct ost_lvb *);
479 MDS_GETATTR_NAME = 34,
490 MDS_DONE_WRITING = 45,
493 #define MDS_FIRST_OPC MDS_GETATTR
499 #define REINT_SETATTR 1
500 #define REINT_CREATE 2
502 #define REINT_UNLINK 4
503 #define REINT_RENAME 5
507 /* the disposition of the intent outlines what was executed */
508 #define DISP_IT_EXECD 1
509 #define DISP_LOOKUP_EXECD (1 << 1)
510 #define DISP_LOOKUP_NEG (1 << 2)
511 #define DISP_LOOKUP_POS (1 << 3)
512 #define DISP_OPEN_CREATE (1 << 4)
513 #define DISP_OPEN_OPEN (1 << 5)
514 #define DISP_ENQ_COMPLETE (1<<6)
516 /* INODE LOCK PARTS */
517 #define MDS_INODELOCK_LOOKUP 0x000001 /* dentry, mode, owner, group */
518 #define MDS_INODELOCK_UPDATE 0x000002 /* size, links, timestamps */
519 //#define MDS_INODELOCK_MAXSHIFT 1
520 //#define MDS_INODELOCK_FULL ((1<<(MDS_INODELOCK_MAXSHIFT+1))-1)
533 struct ll_fid mea_fids[0];
536 struct ll_recreate_obj {
541 extern void lustre_swab_ll_fid (struct ll_fid *fid);
543 #define MDS_STATUS_CONN 1
544 #define MDS_STATUS_LOV 2
546 struct mds_status_req {
551 extern void lustre_swab_mds_status_req (struct mds_status_req *r);
553 #define MDS_BFLAG_UNCOMMITTED_WRITES 0x1
558 struct lustre_handle handle;
559 __u64 size; /* Offset, in the case of MDS_READPAGE */
560 __u64 blocks; /* XID, in the case of MDS_READPAGE */
562 __u32 ino; /* make this a __u64 */
573 __u32 flags; /* from vfs for pin/unpin, MDS_BFLAG for close */
575 __u32 nlink; /* #bytes to read in the case of MDS_READPAGE */
582 extern void lustre_swab_mds_body (struct mds_body *b);
585 /* MDS update records */
587 //struct mds_update_record_hdr {
591 struct mds_rec_setattr {
598 struct ll_fid sa_fid;
609 /* Remove this once we declare it in include/linux/fs.h (v21 kernel patch?) */
610 #ifndef ATTR_CTIME_SET
611 #define ATTR_CTIME_SET 0x2000
614 extern void lustre_swab_mds_rec_setattr (struct mds_rec_setattr *sa);
617 #define FMODE_READ 00000001
618 #define FMODE_WRITE 00000002
621 #define FMODE_EXEC 00000004
623 #define MDS_OPEN_CREAT 00000100
624 #define MDS_OPEN_EXCL 00000200
625 #define MDS_OPEN_TRUNC 00001000
626 #define MDS_OPEN_APPEND 00002000
627 #define MDS_OPEN_SYNC 00010000
628 #define MDS_OPEN_DIRECTORY 00200000
630 #define MDS_OPEN_DELAY_CREATE 0100000000 /* delay initial object create */
631 #define MDS_OPEN_HAS_EA 010000000000 /* specify object create pattern */
632 #define MDS_OPEN_HAS_OBJS 020000000000 /* Just set the EA the obj exist */
634 struct mds_rec_create {
639 __u32 cr_flags; /* for use with open */
641 struct ll_fid cr_fid;
642 struct ll_fid cr_replayfid;
649 extern void lustre_swab_mds_rec_create (struct mds_rec_create *cr);
651 struct mds_rec_link {
658 struct ll_fid lk_fid1;
659 struct ll_fid lk_fid2;
663 extern void lustre_swab_mds_rec_link (struct mds_rec_link *lk);
665 struct mds_rec_unlink {
672 struct ll_fid ul_fid1;
673 struct ll_fid ul_fid2;
677 extern void lustre_swab_mds_rec_unlink (struct mds_rec_unlink *ul);
679 struct mds_rec_rename {
686 struct ll_fid rn_fid1;
687 struct ll_fid rn_fid2;
691 extern void lustre_swab_mds_rec_rename (struct mds_rec_rename *rn);
694 * LOV data structures
697 #define LOV_MAX_UUID_BUFFER_SIZE 8192
698 /* The size of the buffer the lov/mdc reserves for the
699 * array of UUIDs returned by the MDS. With the current
700 * protocol, this will limit the max number of OSTs per LOV */
703 __u32 ld_tgt_count; /* how many OBD's */
704 __u32 ld_active_tgt_count; /* how many active */
705 __u32 ld_default_stripe_count; /* how many objects are used */
706 __u32 ld_pattern; /* PATTERN_RAID0, PATTERN_RAID1 */
707 __u64 ld_default_stripe_size; /* in bytes */
708 __u64 ld_default_stripe_offset; /* in bytes */
709 struct obd_uuid ld_uuid;
713 __u32 ld_count; /* how many MDS's */
714 struct obd_uuid ld_uuid;
717 extern void lustre_swab_lov_desc (struct lov_desc *ld);
722 /* opcodes -- MUST be distinct from OST/MDS opcodes */
727 LDLM_BL_CALLBACK = 104,
728 LDLM_CP_CALLBACK = 105,
729 LDLM_GL_CALLBACK = 106,
732 #define LDLM_FIRST_OPC LDLM_ENQUEUE
734 #define RES_NAME_SIZE 4
736 __u64 name[RES_NAME_SIZE];
739 extern void lustre_swab_ldlm_res_id (struct ldlm_res_id *id);
756 struct ldlm_inodebits {
765 __u64 blocking_export;
768 /* it's important that the fields of the ldlm_extent structure match
769 * the first fields of the ldlm_flock structure because there is only
770 * one ldlm_swab routine to process the ldlm_policy_data_t union. if
771 * this ever changes we will need to swab the union differently based
772 * on the resource type. */
775 struct ldlm_extent l_extent;
776 struct ldlm_flock l_flock;
777 struct ldlm_inodebits l_inodebits;
778 } ldlm_policy_data_t;
780 extern void lustre_swab_ldlm_policy_data (ldlm_policy_data_t *d);
786 extern void lustre_swab_ldlm_intent (struct ldlm_intent *i);
788 struct ldlm_resource_desc {
791 struct ldlm_res_id lr_name;
794 extern void lustre_swab_ldlm_resource_desc (struct ldlm_resource_desc *r);
796 struct ldlm_lock_desc {
797 struct ldlm_resource_desc l_resource;
798 ldlm_mode_t l_req_mode;
799 ldlm_mode_t l_granted_mode;
800 ldlm_policy_data_t l_policy_data;
803 extern void lustre_swab_ldlm_lock_desc (struct ldlm_lock_desc *l);
805 struct ldlm_request {
808 struct ldlm_lock_desc lock_desc;
809 struct lustre_handle lock_handle1;
810 struct lustre_handle lock_handle2;
813 extern void lustre_swab_ldlm_request (struct ldlm_request *rq);
818 struct ldlm_lock_desc lock_desc;
819 struct lustre_handle lock_handle;
820 __u64 lock_policy_res1;
821 __u64 lock_policy_res2;
824 extern void lustre_swab_ldlm_reply (struct ldlm_reply *r);
827 * ptlbd, portal block device requests
835 PTLBD_DISCONNECT = 205,
838 #define PTLBD_FIRST_OPC PTLBD_QUERY
848 extern void lustre_swab_ptlbd_op (struct ptlbd_op *op);
857 extern void lustre_swab_ptlbd_niob (struct ptlbd_niob *n);
864 extern void lustre_swab_ptlbd_rsp (struct ptlbd_rsp *r);
867 * Opcodes for management/monitoring node.
872 MGMT_EXCEPTION, /* node died, etc. */
875 #define MGMT_FIRST_OPC MGMT_CONNECT
878 * Opcodes for multiple servers.
886 #define OBD_FIRST_OPC OBD_PING
888 /* catalog of log objects */
890 /* Identifier for a single log object */
895 } __attribute__((packed));
897 /* Records written to the CATALOGS list */
898 #define CATLIST "CATALOGS"
900 struct llog_logid lci_logid;
901 __u32 lci_padding[3];
902 } __attribute__((packed));
904 /* Log data record types - there is no specific reason that these need to
905 * be related to the RPC opcodes, but no reason not to (may be handy later?)
908 OST_SZ_REC = 0x10600000 | (OST_SAN_WRITE << 8),
909 OST_RAID1_REC = 0x10600000 | ((OST_SAN_WRITE + 1) << 8),
910 MDS_UNLINK_REC = 0x10610000 | (MDS_REINT << 8) | REINT_UNLINK,
911 OBD_CFG_REC = 0x10620000,
912 PTL_CFG_REC = 0x10630000,
913 LLOG_GEN_REC = 0x10640000,
914 LLOG_HDR_MAGIC = 0x10645539,
915 LLOG_LOGID_MAGIC = 0x1064553b,
918 /* Log record header - stored in little endian order.
919 * Each record must start with this struct, end with a llog_rec_tail,
920 * and be a multiple of 256 bits in size.
922 struct llog_rec_hdr {
929 struct llog_rec_tail {
934 struct llog_logid_rec {
935 struct llog_rec_hdr lid_hdr;
936 struct llog_logid lid_id;
938 struct llog_rec_tail lid_tail;
939 } __attribute__((packed));
941 struct llog_create_rec {
942 struct llog_rec_hdr lcr_hdr;
943 struct ll_fid lcr_fid;
947 struct llog_rec_tail lcr_tail;
948 } __attribute__((packed));
950 struct llog_orphan_rec {
951 struct llog_rec_hdr lor_hdr;
955 struct llog_rec_tail lor_tail;
956 } __attribute__((packed));
958 struct llog_unlink_rec {
959 struct llog_rec_hdr lur_hdr;
963 struct llog_rec_tail lur_tail;
964 } __attribute__((packed));
966 struct llog_size_change_rec {
967 struct llog_rec_hdr lsc_hdr;
968 struct ll_fid lsc_fid;
971 struct llog_rec_tail lsc_tail;
972 } __attribute__((packed));
977 } __attribute__((packed));
979 struct llog_gen_rec {
980 struct llog_rec_hdr lgr_hdr;
981 struct llog_gen lgr_gen;
982 struct llog_rec_tail lgr_tail;
984 /* On-disk header structure of each log object, stored in little endian order */
985 #define LLOG_CHUNK_SIZE 8192
986 #define LLOG_HEADER_SIZE (96)
987 #define LLOG_BITMAP_BYTES (LLOG_CHUNK_SIZE - LLOG_HEADER_SIZE)
989 #define LLOG_MIN_REC_SIZE (24) /* round(llog_rec_hdr + llog_rec_tail) */
991 /* flags for the logs */
992 #define LLOG_F_ZAP_WHEN_EMPTY 0x1
993 #define LLOG_F_IS_CAT 0x2
994 #define LLOG_F_IS_PLAIN 0x4
996 struct llog_log_hdr {
997 struct llog_rec_hdr llh_hdr;
1000 __u32 llh_bitmap_offset;
1004 /* for a catlog the first plain slot is next to it */
1005 struct obd_uuid llh_tgtuuid;
1006 __u32 llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32) - 23];
1007 __u32 llh_bitmap[LLOG_BITMAP_BYTES/sizeof(__u32)];
1008 struct llog_rec_tail llh_tail;
1009 } __attribute__((packed));
1011 /* log cookies are used to reference a specific log file and a record therein */
1012 struct llog_cookie {
1013 struct llog_logid lgc_lgl;
1017 } __attribute__((packed));
1020 enum llogd_rpc_ops {
1021 LLOG_ORIGIN_HANDLE_CREATE = 501,
1022 LLOG_ORIGIN_HANDLE_NEXT_BLOCK = 502,
1023 LLOG_ORIGIN_HANDLE_READ_HEADER = 503,
1024 LLOG_ORIGIN_HANDLE_WRITE_REC = 504,
1025 LLOG_ORIGIN_HANDLE_CLOSE = 505,
1026 LLOG_ORIGIN_CONNECT = 506,
1027 LLOG_CATINFO = 507, /* for lfs catinfo */
1031 struct llog_logid lgd_logid;
1033 __u32 lgd_llh_flags;
1035 __u32 lgd_saved_index;
1037 __u64 lgd_cur_offset;
1038 } __attribute__((packed));
1040 struct llogd_conn_body {
1041 struct llog_gen lgdc_gen;
1042 struct llog_logid lgdc_logid;
1043 __u32 lgdc_ctxt_idx;
1044 } __attribute__((packed));
1046 extern void lustre_swab_llogd_body (struct llogd_body *d);
1047 extern void lustre_swab_llog_hdr (struct llog_log_hdr *h);
1048 extern void lustre_swab_llogd_conn_body (struct llogd_conn_body *d);
1050 static inline struct ll_fid *obdo_fid(struct obdo *oa)
1052 return (struct ll_fid *)(oa->o_inline + sizeof(struct lustre_handle) +
1053 sizeof(struct llog_cookie));