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, dev_t, 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
215 #define MSG_CONNECT_INITIAL 0x20
218 * OST requests: OBDO & OBD request records
223 OST_REPLY = 0, /* reply ? */
243 #define OST_FIRST_OPC OST_REPLY
245 typedef uint64_t obd_id;
246 typedef uint64_t obd_gr;
247 typedef uint64_t obd_time;
248 typedef uint64_t obd_size;
249 typedef uint64_t obd_off;
250 typedef uint64_t obd_blocks;
251 typedef uint32_t obd_blksize;
252 typedef uint32_t obd_mode;
253 typedef uint32_t obd_uid;
254 typedef uint32_t obd_gid;
255 typedef uint32_t obd_flag;
256 typedef uint32_t obd_count;
258 #define OBD_FL_INLINEDATA (0x00000001)
259 #define OBD_FL_OBDMDEXISTS (0x00000002)
260 #define OBD_FL_DELORPHAN (0x00000004) /* if set in o_flags delete orphans */
261 #define OBD_FL_NORPC (0x00000008) // if set in o_flags set in OSC not OST
262 #define OBD_FL_IDONLY (0x00000010) // if set in o_flags only adjust obj id
263 #define OBD_FL_RECREATE_OBJS (0x00000020) // recreate missing obj
265 #define OBD_INLINESZ 64
267 /* Note: 64-bit types are 64-bit aligned in structure */
275 obd_blocks o_blocks; /* brw: cli sent cached bytes */
277 obd_blksize o_blksize; /* optimal IO blocksize */
278 obd_mode o_mode; /* brw: cli sent cache remain */
282 obd_count o_nlink; /* brw: checksum */
283 obd_count o_generation;
284 obd_flag o_valid; /* hot fields in this obdo */
286 __u32 o_easize; /* epoch in ost writes */
288 char o_inline[OBD_INLINESZ]; /* fid in ost writes */
291 #define o_dirty o_blocks
292 #define o_undirty o_mode
293 #define o_dropped o_misc
294 #define o_cksum o_nlink
296 extern void lustre_swab_obdo (struct obdo *o);
298 #define LOV_MAGIC_V1 0x0BD10BD0
299 #define LOV_MAGIC LOV_MAGIC_V1
301 #define LOV_PATTERN_RAID0 0x001 /* stripes are used round-robin */
302 #define LOV_PATTERN_RAID1 0x002 /* stripes are mirrors of each other */
303 #define LOV_PATTERN_FIRST 0x100 /* first stripe is not in round-robin */
304 #define LOV_PATTERN_CMOBD 0x200
306 #define lov_ost_data lov_ost_data_v1
307 struct lov_ost_data_v1 { /* per-stripe data structure (little-endian)*/
308 __u64 l_object_id; /* OST object ID */
309 __u64 l_object_gr; /* OST object group (creating MDS number) */
310 __u32 l_ost_gen; /* generation of this l_ost_idx */
311 __u32 l_ost_idx; /* OST index in LOV (lov_tgt_desc->tgts) */
314 #define lov_mds_md lov_mds_md_v1
315 struct lov_mds_md_v1 { /* LOV EA mds/wire data (little-endian) */
316 __u32 lmm_magic; /* magic number = LOV_MAGIC_V1 */
317 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
318 __u64 lmm_object_id; /* LOV object ID */
319 __u64 lmm_object_gr; /* LOV object group */
320 __u32 lmm_stripe_size; /* size of stripe in bytes */
321 __u32 lmm_stripe_count; /* num stripes in use for this object */
322 struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
325 #define LOV_MAGIC_V0 0x0BD00BD0
327 struct lov_ost_data_v0 { /* per-stripe data structure (little-endian)*/
328 __u64 l_object_id; /* OST object ID */
331 struct lov_mds_md_v0 { /* LOV EA mds/wire data (little-endian) */
332 __u32 lmm_magic; /* magic number = LOV_MAGIC_V0 */
333 __u64 lmm_object_id; /* LOV object ID */
334 __u32 lmm_stripe_size; /* size of the stripe in bytes (not RAID1) */
335 __u32 lmm_stripe_offset; /* starting stripe offset in lmm_objects */
336 __u16 lmm_stripe_count; /* number of stipes in use for this object */
337 __u16 lmm_ost_count; /* how many OST idx are in this LOV md */
338 struct lov_ost_data_v0 lmm_objects[0];
339 } __attribute__((packed));
341 #define OBD_MD_FLALL (0xffffffff)
342 #define OBD_MD_FLID (0x00000001) /* object ID */
343 #define OBD_MD_FLATIME (0x00000002) /* access time */
344 #define OBD_MD_FLMTIME (0x00000004) /* data modification time */
345 #define OBD_MD_FLCTIME (0x00000008) /* change time */
346 #define OBD_MD_FLSIZE (0x00000010) /* size */
347 #define OBD_MD_FLBLOCKS (0x00000020) /* allocated blocks count */
348 #define OBD_MD_FLBLKSZ (0x00000040) /* block size */
349 #define OBD_MD_FLMODE (0x00000080) /* access bits (mode & ~S_IFMT) */
350 #define OBD_MD_FLTYPE (0x00000100) /* object type (mode & S_IFMT) */
351 #define OBD_MD_FLUID (0x00000200) /* user ID */
352 #define OBD_MD_FLGID (0x00000400) /* group ID */
353 #define OBD_MD_FLFLAGS (0x00000800) /* flags word */
354 #define OBD_MD_FLNLINK (0x00002000) /* link count */
355 #define OBD_MD_FLGENER (0x00004000) /* generation number */
356 #define OBD_MD_FLINLINE (0x00008000) /* inline data */
357 #define OBD_MD_FLRDEV (0x00010000) /* device number */
358 #define OBD_MD_FLEASIZE (0x00020000) /* extended attribute data */
359 #define OBD_MD_LINKNAME (0x00040000) /* symbolic link target */
360 #define OBD_MD_FLHANDLE (0x00080000) /* file handle */
361 #define OBD_MD_FLCKSUM (0x00100000) /* bulk data checksum */
362 #define OBD_MD_FLQOS (0x00200000) /* quality of service stats */
363 #define OBD_MD_FLOSCOPQ (0x00400000) /* osc opaque data */
364 #define OBD_MD_FLCOOKIE (0x00800000) /* log cancellation cookie */
365 #define OBD_MD_FLGROUP (0x01000000) /* group */
366 #define OBD_MD_FLIFID (0x02000000) /* ->ost write inline fid */
367 #define OBD_MD_FLEPOCH (0x04000000) /* ->ost write easize is epoch */
368 #define OBD_MD_FLGRANT (0x08000000) /* ost preallocation space grant */
369 #define OBD_MD_MDS (0x10000000) /* where an inode lives on */
370 #define OBD_MD_FLDIREA (0x20000000) /* dir's extended attribute data */
371 #define OBD_MD_REINT (0x40000000) /* reintegrate oa*/
372 #define OBD_MD_FLNOTOBD (~(OBD_MD_FLBLOCKS | OBD_MD_LINKNAME|\
373 OBD_MD_FLEASIZE | OBD_MD_FLHANDLE | OBD_MD_FLCKSUM|\
374 OBD_MD_FLQOS | OBD_MD_FLOSCOPQ | OBD_MD_FLCOOKIE|\
378 static inline struct lustre_handle *obdo_handle(struct obdo *oa)
380 return (struct lustre_handle *)oa->o_inline;
383 static inline struct llog_cookie *obdo_logcookie(struct obdo *oa)
385 return (struct llog_cookie *)(oa->o_inline +
386 sizeof(struct lustre_handle));
388 /* don't forget obdo_fid which is way down at the bottom so it can
389 * come after the definition of llog_cookie */
405 extern void lustre_swab_obd_statfs (struct obd_statfs *os);
407 /* ost_body.data values for OST_BRW */
409 #define OBD_BRW_READ 0x01
410 #define OBD_BRW_WRITE 0x02
411 #define OBD_BRW_RWMASK (OBD_BRW_READ | OBD_BRW_WRITE)
412 #define OBD_BRW_SYNC 0x08
413 #define OBD_BRW_CHECK 0x10
414 #define OBD_BRW_FROM_GRANT 0x20 /* the osc manages this under llite */
415 #define OBD_BRW_GRANTED 0x40 /* the ost manages this */
417 #define OBD_OBJECT_EOF 0xffffffffffffffffULL
426 extern void lustre_swab_obd_ioobj (struct obd_ioobj *ioo);
428 /* multiple of 8 bytes => can array */
429 struct niobuf_remote {
435 extern void lustre_swab_niobuf_remote (struct niobuf_remote *nbr);
437 /* request structure for OST's */
439 #define OST_REQ_HAS_OA1 0x1
445 extern void lustre_swab_ost_body (struct ost_body *b);
446 extern void lustre_swab_ost_last_id(obd_id *id);
448 /* lock value block communicated between the filter and llite */
458 extern void lustre_swab_ost_lvb(struct ost_lvb *);
467 MDS_GETATTR_NAME = 34,
478 MDS_DONE_WRITING = 45,
482 #define MDS_FIRST_OPC MDS_GETATTR
488 #define REINT_SETATTR 1
489 #define REINT_CREATE 2
491 #define REINT_UNLINK 4
492 #define REINT_RENAME 5
494 #define REINT_CLOSE 7
495 #define REINT_WRITE 8
498 /* the disposition of the intent outlines what was executed */
499 #define DISP_IT_EXECD 1
500 #define DISP_LOOKUP_EXECD (1 << 1)
501 #define DISP_LOOKUP_NEG (1 << 2)
502 #define DISP_LOOKUP_POS (1 << 3)
503 #define DISP_OPEN_CREATE (1 << 4)
504 #define DISP_OPEN_OPEN (1 << 5)
505 #define DISP_ENQ_COMPLETE (1<<6)
507 /* INODE LOCK PARTS */
508 #define MDS_INODELOCK_LOOKUP 0x000001 /* dentry, mode, owner, group */
509 #define MDS_INODELOCK_UPDATE 0x000002 /* size, links, timestamps */
510 //#define MDS_INODELOCK_MAXSHIFT 1
511 //#define MDS_INODELOCK_FULL ((1<<(MDS_INODELOCK_MAXSHIFT+1))-1)
524 struct ll_fid mea_fids[0];
527 #define MEA_MAGIC_LAST_CHAR 0xb2221ca1
528 #define MEA_MAGIC_ALL_CHARS 0xb222a11c
534 struct ll_fid mea_fids[0];
537 extern void lustre_swab_ll_fid (struct ll_fid *fid);
539 #define MDS_STATUS_CONN 1
540 #define MDS_STATUS_LOV 2
542 struct mds_status_req {
547 extern void lustre_swab_mds_status_req (struct mds_status_req *r);
549 #define MDS_BFLAG_UNCOMMITTED_WRITES 0x1
554 struct lustre_handle handle;
555 __u64 size; /* Offset, in the case of MDS_READPAGE */
556 __u64 blocks; /* XID, in the case of MDS_READPAGE */
558 __u32 ino; /* make this a __u64 */
569 __u32 flags; /* from vfs for pin/unpin, MDS_BFLAG for close */
571 __u32 nlink; /* #bytes to read in the case of MDS_READPAGE */
578 extern void lustre_swab_mds_body (struct mds_body *b);
581 struct mds_body *body;
582 struct lov_stripe_md *lsm;
594 struct ll_uctxt ctxt;
599 struct mea *mea1; /* mea of inode1 */
600 struct mea *mea2; /* mea of inode2 */
603 #define MDS_MODE_DONT_LOCK (1 << 30)
604 #define MDS_MODE_REPLAY (1 << 31)
606 struct mds_rec_setattr {
613 struct ll_fid sa_fid;
624 /* Remove this once we declare it in include/linux/fs.h (v21 kernel patch?) */
625 #ifndef ATTR_CTIME_SET
626 #define ATTR_CTIME_SET 0x2000
629 extern void lustre_swab_mds_rec_setattr (struct mds_rec_setattr *sa);
632 #define FMODE_READ 00000001
633 #define FMODE_WRITE 00000002
636 #define FMODE_EXEC 00000004
638 #define MDS_OPEN_CREAT 00000100
639 #define MDS_OPEN_EXCL 00000200
640 #define MDS_OPEN_TRUNC 00001000
641 #define MDS_OPEN_APPEND 00002000
642 #define MDS_OPEN_SYNC 00010000
643 #define MDS_OPEN_DIRECTORY 00200000
645 #define MDS_OPEN_DELAY_CREATE 0100000000 /* delay initial object create */
646 #define MDS_OPEN_HAS_EA 010000000000 /* specify object create pattern */
647 #define MDS_OPEN_HAS_OBJS 020000000000 /* Just set the EA the obj exist */
649 struct mds_rec_create {
654 __u32 cr_flags; /* for use with open */
656 struct ll_fid cr_fid;
657 struct ll_fid cr_replayfid;
664 extern void lustre_swab_mds_rec_create (struct mds_rec_create *cr);
666 struct mds_rec_link {
673 struct ll_fid lk_fid1;
674 struct ll_fid lk_fid2;
678 extern void lustre_swab_mds_rec_link (struct mds_rec_link *lk);
680 struct mds_rec_unlink {
687 struct ll_fid ul_fid1;
688 struct ll_fid ul_fid2;
692 extern void lustre_swab_mds_rec_unlink (struct mds_rec_unlink *ul);
694 struct mds_rec_rename {
701 struct ll_fid rn_fid1;
702 struct ll_fid rn_fid2;
706 extern void lustre_swab_mds_rec_rename (struct mds_rec_rename *rn);
709 * LOV data structures
712 #define LOV_MAX_UUID_BUFFER_SIZE 8192
713 /* The size of the buffer the lov/mdc reserves for the
714 * array of UUIDs returned by the MDS. With the current
715 * protocol, this will limit the max number of OSTs per LOV */
718 __u32 ld_tgt_count; /* how many OBD's */
719 __u32 ld_active_tgt_count; /* how many active */
720 __u32 ld_default_stripe_count; /* how many objects are used */
721 __u32 ld_pattern; /* PATTERN_RAID0, PATTERN_RAID1 */
722 __u64 ld_default_stripe_size; /* in bytes */
723 __u64 ld_default_stripe_offset; /* in bytes */
724 struct obd_uuid ld_uuid;
728 __u32 ld_tgt_count; /* how many MDS's */
729 __u32 ld_active_tgt_count; /* how many active */
730 struct obd_uuid ld_uuid;
733 extern void lustre_swab_lov_desc (struct lov_desc *ld);
738 /* opcodes -- MUST be distinct from OST/MDS opcodes */
743 LDLM_BL_CALLBACK = 104,
744 LDLM_CP_CALLBACK = 105,
745 LDLM_GL_CALLBACK = 106,
748 #define LDLM_FIRST_OPC LDLM_ENQUEUE
750 #define RES_NAME_SIZE 4
752 __u64 name[RES_NAME_SIZE];
755 extern void lustre_swab_ldlm_res_id (struct ldlm_res_id *id);
773 struct ldlm_inodebits {
782 __u64 blocking_export;
785 /* it's important that the fields of the ldlm_extent structure match
786 * the first fields of the ldlm_flock structure because there is only
787 * one ldlm_swab routine to process the ldlm_policy_data_t union. if
788 * this ever changes we will need to swab the union differently based
789 * on the resource type. */
792 struct ldlm_extent l_extent;
793 struct ldlm_flock l_flock;
794 struct ldlm_inodebits l_inodebits;
795 } ldlm_policy_data_t;
797 extern void lustre_swab_ldlm_policy_data (ldlm_policy_data_t *d);
803 extern void lustre_swab_ldlm_intent (struct ldlm_intent *i);
805 struct ldlm_resource_desc {
808 struct ldlm_res_id lr_name;
811 extern void lustre_swab_ldlm_resource_desc (struct ldlm_resource_desc *r);
813 struct ldlm_lock_desc {
814 struct ldlm_resource_desc l_resource;
815 ldlm_mode_t l_req_mode;
816 ldlm_mode_t l_granted_mode;
817 ldlm_policy_data_t l_policy_data;
820 extern void lustre_swab_ldlm_lock_desc (struct ldlm_lock_desc *l);
822 struct ldlm_request {
825 struct ldlm_lock_desc lock_desc;
826 struct lustre_handle lock_handle1;
827 struct lustre_handle lock_handle2;
830 extern void lustre_swab_ldlm_request (struct ldlm_request *rq);
835 struct ldlm_lock_desc lock_desc;
836 struct lustre_handle lock_handle;
837 __u64 lock_policy_res1;
838 __u64 lock_policy_res2;
841 extern void lustre_swab_ldlm_reply (struct ldlm_reply *r);
844 * ptlbd, portal block device requests
852 PTLBD_DISCONNECT = 205,
855 #define PTLBD_FIRST_OPC PTLBD_QUERY
865 extern void lustre_swab_ptlbd_op (struct ptlbd_op *op);
874 extern void lustre_swab_ptlbd_niob (struct ptlbd_niob *n);
881 extern void lustre_swab_ptlbd_rsp (struct ptlbd_rsp *r);
883 struct clonefs_info {
887 extern void lustre_swab_clonefs_info(struct clonefs_info *clone);
889 * Opcodes for management/monitoring node.
894 MGMT_EXCEPTION, /* node died, etc. */
897 #define MGMT_FIRST_OPC MGMT_CONNECT
900 * Opcodes for multiple servers.
908 #define OBD_FIRST_OPC OBD_PING
910 /* catalog of log objects */
912 /* Identifier for a single log object */
917 } __attribute__((packed));
919 /* Records written to the CATALOGS list */
920 #define CATLIST "CATALOGS"
922 struct llog_logid lci_logid;
923 __u32 lci_padding[3];
924 } __attribute__((packed));
926 /* Log data record types - there is no specific reason that these need to
927 * be related to the RPC opcodes, but no reason not to (may be handy later?)
930 OST_SZ_REC = 0x10600000 | (OST_SAN_WRITE << 8),
931 OST_RAID1_REC = 0x10600000 | ((OST_SAN_WRITE + 1) << 8),
932 MDS_UNLINK_REC = 0x10610000 | (MDS_REINT << 8) | REINT_UNLINK,
933 OBD_CFG_REC = 0x10620000,
934 PTL_CFG_REC = 0x10630000,
935 LLOG_GEN_REC = 0x10640000,
936 LLOG_HDR_MAGIC = 0x10645539,
937 LLOG_LOGID_MAGIC = 0x1064553b,
938 SMFS_UPDATE_REC = 0x10650000,
939 CACHE_LRU_REC = 0x10660000,
942 /* Log record header - stored in little endian order.
943 * Each record must start with this struct, end with a llog_rec_tail,
944 * and be a multiple of 256 bits in size.
946 struct llog_rec_hdr {
953 struct llog_rec_tail {
958 struct llog_logid_rec {
959 struct llog_rec_hdr lid_hdr;
960 struct llog_logid lid_id;
962 struct llog_rec_tail lid_tail;
963 } __attribute__((packed));
965 struct llog_create_rec {
966 struct llog_rec_hdr lcr_hdr;
967 struct ll_fid lcr_fid;
971 struct llog_rec_tail lcr_tail;
972 } __attribute__((packed));
974 struct llog_orphan_rec {
975 struct llog_rec_hdr lor_hdr;
979 struct llog_rec_tail lor_tail;
980 } __attribute__((packed));
982 struct llog_unlink_rec {
983 struct llog_rec_hdr lur_hdr;
987 struct llog_rec_tail lur_tail;
988 } __attribute__((packed));
990 struct llog_size_change_rec {
991 struct llog_rec_hdr lsc_hdr;
992 struct ll_fid lsc_fid;
995 struct llog_rec_tail lsc_tail;
996 } __attribute__((packed));
1003 struct llog_gen_rec {
1004 struct llog_rec_hdr lgr_hdr;
1005 struct llog_gen lgr_gen;
1006 struct llog_rec_tail lgr_tail;
1007 } __attribute__((packed));
1009 struct llog_lru_rec {
1010 struct llog_rec_hdr llr_hdr;
1011 struct ll_fid llr_cfid;
1012 struct ll_fid llr_pfid;
1013 struct llog_rec_tail llr_tail;
1014 } __attribute__((packed));
1016 /* On-disk header structure of each log object, stored in little endian order */
1017 #define LLOG_CHUNK_SIZE 8192
1018 #define LLOG_HEADER_SIZE (96)
1019 #define LLOG_BITMAP_BYTES (LLOG_CHUNK_SIZE - LLOG_HEADER_SIZE)
1021 #define LLOG_MIN_REC_SIZE (24) /* round(llog_rec_hdr + llog_rec_tail) */
1023 /* flags for the logs */
1024 #define LLOG_F_ZAP_WHEN_EMPTY 0x1
1025 #define LLOG_F_IS_CAT 0x2
1026 #define LLOG_F_IS_PLAIN 0x4
1028 struct llog_log_hdr {
1029 struct llog_rec_hdr llh_hdr;
1030 __u64 llh_timestamp;
1032 __u32 llh_bitmap_offset;
1036 /* for a catalog the first plain slot is next to it */
1037 struct obd_uuid llh_tgtuuid;
1038 __u32 llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32) - 23];
1039 __u32 llh_bitmap[LLOG_BITMAP_BYTES/sizeof(__u32)];
1040 struct llog_rec_tail llh_tail;
1041 } __attribute__((packed));
1043 /* log cookies are used to reference a specific log file and a record therein */
1044 struct llog_cookie {
1045 struct llog_logid lgc_lgl;
1049 } __attribute__((packed));
1052 enum llogd_rpc_ops {
1053 LLOG_ORIGIN_HANDLE_OPEN = 501,
1054 LLOG_ORIGIN_HANDLE_NEXT_BLOCK = 502,
1055 LLOG_ORIGIN_HANDLE_READ_HEADER = 503,
1056 LLOG_ORIGIN_HANDLE_WRITE_REC = 504,
1057 LLOG_ORIGIN_HANDLE_CLOSE = 505,
1058 LLOG_ORIGIN_CONNECT = 506,
1059 LLOG_CATINFO = 507, /* for lfs catinfo */
1060 LLOG_ORIGIN_HANDLE_PREV_BLOCK = 508,
1064 struct llog_logid lgd_logid;
1066 __u32 lgd_llh_flags;
1068 __u32 lgd_saved_index;
1070 __u64 lgd_cur_offset;
1071 } __attribute__((packed));
1073 struct llogd_conn_body {
1074 struct llog_gen lgdc_gen;
1075 struct llog_logid lgdc_logid;
1076 __u32 lgdc_ctxt_idx;
1077 } __attribute__((packed));
1079 extern void lustre_swab_llogd_body (struct llogd_body *d);
1080 extern void lustre_swab_llog_hdr (struct llog_log_hdr *h);
1081 extern void lustre_swab_llogd_conn_body (struct llogd_conn_body *d);
1083 static inline struct ll_fid *obdo_fid(struct obdo *oa)
1085 return (struct ll_fid *)(oa->o_inline + sizeof(struct lustre_handle) +
1086 sizeof(struct llog_cookie));