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_VERSION_MASK 0xffff0000
133 #define LUSTRE_OBD_VERSION 0x00010000
134 #define LUSTRE_MDS_VERSION 0x00020000
135 #define LUSTRE_OST_VERSION 0x00030000
136 #define LUSTRE_DLM_VERSION 0x00040000
137 #define LUSTRE_LOG_VERSION 0x00050000
138 #define LUSTRE_PBD_VERSION 0x00060000
140 struct lustre_handle {
143 #define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL
145 /* we depend on this structure to be 8-byte aligned */
146 /* this type is only endian-adjusted in lustre_unpack_msg() */
148 struct lustre_handle handle;
154 __u64 last_committed;
163 /* Flags that are operation-specific go in the top 16 bits. */
164 #define MSG_OP_FLAG_MASK 0xffff0000
165 #define MSG_OP_FLAG_SHIFT 16
167 /* Flags that apply to all requests are in the bottom 16 bits */
168 #define MSG_GEN_FLAG_MASK 0x0000ffff
169 #define MSG_LAST_REPLAY 1
173 static inline int lustre_msg_get_flags(struct lustre_msg *msg)
175 return (msg->flags & MSG_GEN_FLAG_MASK);
178 static inline void lustre_msg_add_flags(struct lustre_msg *msg, int flags)
180 msg->flags |= MSG_GEN_FLAG_MASK & flags;
183 static inline void lustre_msg_set_flags(struct lustre_msg *msg, int flags)
185 msg->flags &= ~MSG_GEN_FLAG_MASK;
186 lustre_msg_add_flags(msg, flags);
189 static inline void lustre_msg_clear_flags(struct lustre_msg *msg, int flags)
191 msg->flags &= ~(MSG_GEN_FLAG_MASK & flags);
194 static inline int lustre_msg_get_op_flags(struct lustre_msg *msg)
196 return (msg->flags >> MSG_OP_FLAG_SHIFT);
199 static inline void lustre_msg_add_op_flags(struct lustre_msg *msg, int flags)
201 msg->flags |= ((flags & MSG_GEN_FLAG_MASK) << MSG_OP_FLAG_SHIFT);
204 static inline void lustre_msg_set_op_flags(struct lustre_msg *msg, int flags)
206 msg->flags &= ~MSG_OP_FLAG_MASK;
207 lustre_msg_add_op_flags(msg, flags);
211 * Flags for all connect opcodes (MDS_CONNECT, OST_CONNECT)
214 #define MSG_CONNECT_RECOVERING 0x1
215 #define MSG_CONNECT_RECONNECT 0x2
216 #define MSG_CONNECT_REPLAYABLE 0x4
217 //#define MSG_CONNECT_PEER 0x8
218 #define MSG_CONNECT_LIBCLIENT 0x10
219 #define MSG_CONNECT_INITIAL 0x20
222 * OST requests: OBDO & OBD request records
227 OST_REPLY = 0, /* reply ? */
247 #define OST_FIRST_OPC OST_REPLY
249 typedef uint64_t obd_id;
250 typedef uint64_t obd_gr;
251 typedef uint64_t obd_time;
252 typedef uint64_t obd_size;
253 typedef uint64_t obd_off;
254 typedef uint64_t obd_blocks;
255 typedef uint32_t obd_blksize;
256 typedef uint32_t obd_mode;
257 typedef uint32_t obd_uid;
258 typedef uint32_t obd_gid;
259 typedef uint32_t obd_flags;
260 typedef uint64_t obd_valid;
261 typedef uint32_t obd_count;
263 #define OBD_FL_INLINEDATA (0x00000001)
264 #define OBD_FL_OBDMDEXISTS (0x00000002)
265 #define OBD_FL_DELORPHAN (0x00000004) /* if set in o_flags delete orphans */
266 #define OBD_FL_NORPC (0x00000008) // if set in o_flags set in OSC not OST
267 #define OBD_FL_IDONLY (0x00000010) // if set in o_flags only adjust obj id
268 #define OBD_FL_RECREATE_OBJS (0x00000020) // recreate missing obj
269 #define OBD_FL_DEBUG_CHECK (0x00000040) /* echo client/server debug check */
271 /* this should be sizeof(struct lustre_handle) + sizeof(struct llog_cookie) +
272 * sizeof(struct lustre_id). */
273 #define OBD_INLINESZ (80)
275 /* Note: 64-bit types are 64-bit aligned in structure */
283 obd_blocks o_blocks; /* brw: cli sent cached bytes */
285 obd_blksize o_blksize; /* optimal IO blocksize */
286 obd_mode o_mode; /* brw: cli sent cache remain */
290 obd_count o_nlink; /* brw: checksum */
291 obd_count o_generation;
292 obd_valid o_valid; /* hot fields in this obdo */
293 obd_count o_misc; /* brw: o_dropped */
294 __u32 o_easize; /* epoch in ost writes */
298 char o_inline[OBD_INLINESZ]; /* fid in ost writes */
301 #define o_dirty o_blocks
302 #define o_undirty o_mode
303 #define o_dropped o_misc
304 #define o_cksum o_nlink
306 extern void lustre_swab_obdo (struct obdo *o);
308 #define LOV_MAGIC_V1 0x0BD10BD0
309 #define LOV_MAGIC LOV_MAGIC_V1
311 #define LOV_PATTERN_RAID0 0x001 /* stripes are used round-robin */
312 #define LOV_PATTERN_RAID1 0x002 /* stripes are mirrors of each other */
313 #define LOV_PATTERN_FIRST 0x100 /* first stripe is not in round-robin */
314 #define LOV_PATTERN_CMOBD 0x200
316 #define lov_ost_data lov_ost_data_v1
317 struct lov_ost_data_v1 { /* per-stripe data structure (little-endian)*/
318 __u64 l_object_id; /* OST object ID */
319 __u64 l_object_gr; /* OST object group (creating MDS number) */
320 __u32 l_ost_gen; /* generation of this l_ost_idx */
321 __u32 l_ost_idx; /* OST index in LOV (lov_tgt_desc->tgts) */
324 #define lov_mds_md lov_mds_md_v1
325 struct lov_mds_md_v1 { /* LOV EA mds/wire data (little-endian) */
326 __u32 lmm_magic; /* magic number = LOV_MAGIC_V1 */
327 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
328 __u64 lmm_object_id; /* LOV object ID */
329 __u64 lmm_object_gr; /* LOV object group */
330 __u32 lmm_stripe_size; /* size of stripe in bytes */
331 __u32 lmm_stripe_count; /* num stripes in use for this object */
332 struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
335 #define LOV_MAGIC_V0 0x0BD00BD0
337 struct lov_ost_data_v0 { /* per-stripe data structure (little-endian)*/
338 __u64 l_object_id; /* OST object ID */
341 struct lov_mds_md_v0 { /* LOV EA mds/wire data (little-endian) */
342 __u32 lmm_magic; /* magic number = LOV_MAGIC_V0 */
343 __u64 lmm_object_id; /* LOV object ID */
344 __u32 lmm_stripe_size; /* size of the stripe in bytes (not RAID1) */
345 __u32 lmm_stripe_offset; /* starting stripe offset in lmm_objects */
346 __u16 lmm_stripe_count; /* number of stipes in use for this object */
347 __u16 lmm_ost_count; /* how many OST idx are in this LOV md */
348 struct lov_ost_data_v0 lmm_objects[0];
349 } __attribute__((packed));
351 #define OBD_MD_FLALL (0xffffffffffffffff)
352 #define OBD_MD_FLID (0x0000000000000001) /* object ID */
353 #define OBD_MD_FLATIME (0x0000000000000002) /* access time */
354 #define OBD_MD_FLMTIME (0x0000000000000004) /* data modification time */
355 #define OBD_MD_FLCTIME (0x0000000000000008) /* change time */
356 #define OBD_MD_FLSIZE (0x0000000000000010) /* size */
357 #define OBD_MD_FLBLOCKS (0x0000000000000020) /* allocated blocks count */
358 #define OBD_MD_FLBLKSZ (0x0000000000000040) /* block size */
359 #define OBD_MD_FLMODE (0x0000000000000080) /* access bits (mode & ~S_IFMT) */
360 #define OBD_MD_FLTYPE (0x0000000000000100) /* object type (mode & S_IFMT) */
361 #define OBD_MD_FLUID (0x0000000000000200) /* user ID */
362 #define OBD_MD_FLGID (0x0000000000000400) /* group ID */
363 #define OBD_MD_FLFLAGS (0x0000000000000800) /* flags word */
364 #define OBD_MD_FLNLINK (0x0000000000002000) /* link count */
365 #define OBD_MD_FLGENER (0x0000000000004000) /* generation number */
366 #define OBD_MD_FLINLINE (0x0000000000008000) /* inline data */
367 #define OBD_MD_FLRDEV (0x0000000000010000) /* device number */
368 #define OBD_MD_FLEASIZE (0x0000000000020000) /* extended attribute data */
369 #define OBD_MD_LINKNAME (0x0000000000040000) /* symbolic link target */
370 #define OBD_MD_FLHANDLE (0x0000000000080000) /* file handle */
371 #define OBD_MD_FLCKSUM (0x0000000000100000) /* bulk data checksum */
372 #define OBD_MD_FLQOS (0x0000000000200000) /* quality of service stats */
373 #define OBD_MD_FLOSCOPQ (0x0000000000400000) /* osc opaque data */
374 #define OBD_MD_FLCOOKIE (0x0000000000800000) /* log cancellation cookie */
375 #define OBD_MD_FLGROUP (0x0000000001000000) /* group */
376 #define OBD_MD_FLIFID (0x0000000002000000) /* ->ost write inline fid */
377 #define OBD_MD_FLEPOCH (0x0000000004000000) /* ->ost write easize is epoch */
378 #define OBD_MD_FLGRANT (0x0000000008000000) /* ost preallocation space grant */
379 #define OBD_MD_MDS (0x0000000010000000) /* where an inode lives on */
380 #define OBD_MD_FLDIREA (0x0000000020000000) /* dir's extended attribute data */
381 #define OBD_MD_REINT (0x0000000040000000) /* reintegrate oa */
382 #define OBD_MD_FID (0x0000000080000000) /* take care about fid component */
384 #define OBD_MD_FLNOTOBD (~(OBD_MD_FLBLOCKS | OBD_MD_LINKNAME | \
385 OBD_MD_FLEASIZE | OBD_MD_FLHANDLE | \
386 OBD_MD_FLCKSUM | OBD_MD_FLQOS | \
387 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));
401 /* don't forget obdo_fid which is way down at the bottom so it can come after
402 * 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);
459 extern void lustre_swab_generic_32s(__u32 *val);
461 /* lock value block communicated between the filter and llite */
471 extern void lustre_swab_ost_lvb(struct ost_lvb *);
477 /* offsets in the request */
478 #define MDS_REQ_SECDESC_OFF 0
479 #define MDS_REQ_REC_OFF 1
481 #define MDS_REQ_INTENT_LOCKREQ_OFF 1
482 #define MDS_REQ_INTENT_IT_OFF 2
483 #define MDS_REQ_INTENT_REC_OFF 3
485 /* maximum supplementary groups */
486 #define LUSTRE_MAX_GROUPS 128
489 * security descriptor in mds request
491 * note gid & cap might need be removed later:
492 * - cap should be obtained on mds
493 * - gid is actually not used.
495 struct mds_req_sec_desc {
505 struct ptlrpc_request;
506 struct mds_req_sec_desc *lustre_swab_mds_secdesc(struct ptlrpc_request *req,
512 MDS_GETATTR_LOCK = 34,
523 MDS_DONE_WRITING = 45,
527 #define MDS_FIRST_OPC MDS_GETATTR
533 #define REINT_SETATTR 1
534 #define REINT_CREATE 2
536 #define REINT_UNLINK 4
537 #define REINT_RENAME 5
539 #define REINT_CLOSE 7
540 #define REINT_WRITE 8
543 /* the disposition of the intent outlines what was executed */
544 #define DISP_IT_EXECD (1 << 0)
545 #define DISP_LOOKUP_EXECD (1 << 1)
546 #define DISP_LOOKUP_NEG (1 << 2)
547 #define DISP_LOOKUP_POS (1 << 3)
548 #define DISP_OPEN_CREATE (1 << 4)
549 #define DISP_OPEN_OPEN (1 << 5)
550 #define DISP_ENQ_COMPLETE (1 << 6)
552 /* INODE LOCK PARTS */
553 #define MDS_INODELOCK_LOOKUP 0x000001 /* dentry, mode, owner, group */
554 #define MDS_INODELOCK_UPDATE 0x000002 /* size, links, timestamps */
556 /* lustre store cookie */
560 __u64 l3s_ino; /* inode number on local MDS */
561 __u32 l3s_gen; /* inode generation */
562 __u32 l3s_type; /* inode type */
569 __u64 lf_id; /* fid counter maintained on per
571 __u64 lf_group; /* sequence group num */
572 __u32 lf_version; /* what snapfs version of inode */
577 struct lustre_stc li_stc; /* store cookie */
578 struct lustre_fid li_fid; /* fid cookie */
584 struct lustre_id mea_ids[0];
587 #define MEA_MAGIC_LAST_CHAR 0xb2221ca1
588 #define MEA_MAGIC_ALL_CHARS 0xb222a11c
594 struct lustre_id mea_ids[0];
597 #define MDS_STATUS_CONN 1
598 #define MDS_STATUS_LOV 2
600 struct mds_status_req {
605 extern void lustre_swab_lustre_id(struct lustre_id *id);
606 extern void lustre_swab_lustre_stc(struct lustre_stc *stc);
607 extern void lustre_swab_lustre_fid(struct lustre_fid *fid);
608 extern void lustre_swab_mds_status_req (struct mds_status_req *r);
610 #define MDS_BFLAG_UNCOMMITTED_WRITES 0x1
613 struct lustre_id id1;
614 struct lustre_id id2;
615 struct lustre_handle handle;
616 __u64 size; /* Offset, in the case of MDS_READPAGE */
617 __u64 blocks; /* XID, in the case of MDS_READPAGE */
626 __u32 flags; /* from vfs for pin/unpin, MDS_BFLAG for close */
628 __u32 nlink; /* #bytes to read in the case of MDS_READPAGE */
632 extern void lustre_swab_mds_body (struct mds_body *b);
635 struct mds_body *body;
636 struct lov_stripe_md *lsm;
641 struct lustre_id id1;
642 struct lustre_id id2;
647 struct mea *mea1; /* mea of inode1 */
648 struct mea *mea2; /* mea of inode2 */
652 #define MDS_MODE_DONT_LOCK (1 << 30)
653 #define MDS_MODE_REPLAY (1 << 31)
655 struct mds_rec_setattr {
658 struct lustre_id sa_id;
669 /* Remove this once we declare it in include/linux/fs.h (v21 kernel patch?) */
670 #ifndef ATTR_CTIME_SET
671 #define ATTR_CTIME_SET 0x2000
674 extern void lustre_swab_mds_rec_setattr (struct mds_rec_setattr *sa);
677 #define FMODE_READ 00000001
678 #define FMODE_WRITE 00000002
681 #define FMODE_EXEC 00000004
683 #define MDS_OPEN_CREAT 00000100
684 #define MDS_OPEN_EXCL 00000200
685 #define MDS_OPEN_TRUNC 00001000
686 #define MDS_OPEN_APPEND 00002000
687 #define MDS_OPEN_SYNC 00010000
688 #define MDS_OPEN_DIRECTORY 00200000
690 #define MDS_OPEN_DELAY_CREATE 0100000000 /* delay initial object create */
691 #define MDS_OPEN_HAS_EA 010000000000 /* specify object create pattern */
692 #define MDS_OPEN_HAS_OBJS 020000000000 /* Just set the EA the obj exist */
694 struct mds_rec_create {
696 __u32 cr_flags; /* for use with open */
699 struct lustre_id cr_id;
700 struct lustre_id cr_replayid;
705 extern void lustre_swab_mds_rec_create (struct mds_rec_create *cr);
707 struct mds_rec_link {
710 struct lustre_id lk_id1;
711 struct lustre_id lk_id2;
715 extern void lustre_swab_mds_rec_link (struct mds_rec_link *lk);
717 struct mds_rec_unlink {
720 struct lustre_id ul_id1;
721 struct lustre_id ul_id2;
725 extern void lustre_swab_mds_rec_unlink (struct mds_rec_unlink *ul);
727 struct mds_rec_rename {
730 struct lustre_id rn_id1;
731 struct lustre_id rn_id2;
735 extern void lustre_swab_mds_rec_rename (struct mds_rec_rename *rn);
738 * LOV data structures
741 #define LOV_MAX_UUID_BUFFER_SIZE 8192
742 /* The size of the buffer the lov/mdc reserves for the
743 * array of UUIDs returned by the MDS. With the current
744 * protocol, this will limit the max number of OSTs per LOV */
747 __u32 ld_tgt_count; /* how many OBD's */
748 __u32 ld_active_tgt_count; /* how many active */
749 __u32 ld_default_stripe_count; /* how many objects are used */
750 __u32 ld_pattern; /* PATTERN_RAID0, PATTERN_RAID1 */
751 __u64 ld_default_stripe_size; /* in bytes */
752 __u64 ld_default_stripe_offset; /* in bytes */
753 struct obd_uuid ld_uuid;
757 __u32 ld_tgt_count; /* how many MDS's */
758 __u32 ld_active_tgt_count; /* how many active */
759 struct obd_uuid ld_uuid;
762 extern void lustre_swab_lov_desc (struct lov_desc *ld);
767 /* opcodes -- MUST be distinct from OST/MDS opcodes */
772 LDLM_BL_CALLBACK = 104,
773 LDLM_CP_CALLBACK = 105,
774 LDLM_GL_CALLBACK = 106,
777 #define LDLM_FIRST_OPC LDLM_ENQUEUE
779 #define RES_NAME_SIZE 4
781 __u64 name[RES_NAME_SIZE];
784 extern void lustre_swab_ldlm_res_id (struct ldlm_res_id *id);
802 struct ldlm_inodebits {
811 __u64 blocking_export;
814 /* it's important that the fields of the ldlm_extent structure match
815 * the first fields of the ldlm_flock structure because there is only
816 * one ldlm_swab routine to process the ldlm_policy_data_t union. if
817 * this ever changes we will need to swab the union differently based
818 * on the resource type. */
821 struct ldlm_extent l_extent;
822 struct ldlm_flock l_flock;
823 struct ldlm_inodebits l_inodebits;
824 } ldlm_policy_data_t;
826 extern void lustre_swab_ldlm_policy_data (ldlm_policy_data_t *d);
832 extern void lustre_swab_ldlm_intent (struct ldlm_intent *i);
834 struct ldlm_resource_desc {
837 struct ldlm_res_id lr_name;
840 extern void lustre_swab_ldlm_resource_desc (struct ldlm_resource_desc *r);
842 struct ldlm_lock_desc {
843 struct ldlm_resource_desc l_resource;
844 ldlm_mode_t l_req_mode;
845 ldlm_mode_t l_granted_mode;
846 ldlm_policy_data_t l_policy_data;
849 extern void lustre_swab_ldlm_lock_desc (struct ldlm_lock_desc *l);
851 struct ldlm_request {
854 struct ldlm_lock_desc lock_desc;
855 struct lustre_handle lock_handle1;
856 struct lustre_handle lock_handle2;
859 extern void lustre_swab_ldlm_request (struct ldlm_request *rq);
864 struct ldlm_lock_desc lock_desc;
865 struct lustre_handle lock_handle;
866 __u64 lock_policy_res1;
867 __u64 lock_policy_res2;
870 extern void lustre_swab_ldlm_reply (struct ldlm_reply *r);
873 * ptlbd, portal block device requests
881 PTLBD_DISCONNECT = 205,
884 #define PTLBD_FIRST_OPC PTLBD_QUERY
894 extern void lustre_swab_ptlbd_op (struct ptlbd_op *op);
903 extern void lustre_swab_ptlbd_niob (struct ptlbd_niob *n);
910 extern void lustre_swab_ptlbd_rsp (struct ptlbd_rsp *r);
913 * Opcodes for management/monitoring node.
918 MGMT_EXCEPTION, /* node died, etc. */
921 #define MGMT_FIRST_OPC MGMT_CONNECT
924 * Opcodes for multiple servers.
932 #define OBD_FIRST_OPC OBD_PING
934 /* catalog of log objects */
936 /* Identifier for a single log object */
941 } __attribute__((packed));
943 /* Records written to the CATALOGS list */
944 #define CATLIST "CATALOGS"
946 struct llog_logid lci_logid;
947 __u32 lci_padding[3];
948 } __attribute__((packed));
950 /* Log data record types - there is no specific reason that these need to
951 * be related to the RPC opcodes, but no reason not to (may be handy later?)
954 OST_SZ_REC = 0x10600000 | (OST_SAN_WRITE << 8),
955 OST_RAID1_REC = 0x10600000 | ((OST_SAN_WRITE + 1) << 8),
956 MDS_UNLINK_REC = 0x10610000 | (MDS_REINT << 8) | REINT_UNLINK,
957 OBD_CFG_REC = 0x10620000,
958 PTL_CFG_REC = 0x10630000,
959 LLOG_GEN_REC = 0x10640000,
960 LLOG_HDR_MAGIC = 0x10645539,
961 LLOG_LOGID_MAGIC = 0x1064553b,
962 SMFS_UPDATE_REC = 0x10650000,
963 CACHE_LRU_REC = 0x10660000,
966 /* Log record header - stored in little endian order.
967 * Each record must start with this struct, end with a llog_rec_tail,
968 * and be a multiple of 256 bits in size.
970 struct llog_rec_hdr {
977 struct llog_rec_tail {
982 struct llog_logid_rec {
983 struct llog_rec_hdr lid_hdr;
984 struct llog_logid lid_id;
986 struct llog_rec_tail lid_tail;
987 } __attribute__((packed));
989 struct llog_create_rec {
990 struct llog_rec_hdr lcr_hdr;
991 struct lustre_id lcr_id;
995 struct llog_rec_tail lcr_tail;
996 } __attribute__((packed));
998 struct llog_orphan_rec {
999 struct llog_rec_hdr lor_hdr;
1003 struct llog_rec_tail lor_tail;
1004 } __attribute__((packed));
1006 struct llog_unlink_rec {
1007 struct llog_rec_hdr lur_hdr;
1011 struct llog_rec_tail lur_tail;
1012 } __attribute__((packed));
1014 struct llog_size_change_rec {
1015 struct llog_rec_hdr lsc_hdr;
1016 struct lustre_id lsc_id;
1019 struct llog_rec_tail lsc_tail;
1020 } __attribute__((packed));
1027 struct llog_gen_rec {
1028 struct llog_rec_hdr lgr_hdr;
1029 struct llog_gen lgr_gen;
1030 struct llog_rec_tail lgr_tail;
1031 } __attribute__((packed));
1033 struct llog_lru_rec {
1034 struct llog_rec_hdr llr_hdr;
1035 struct lustre_id llr_cid;
1036 struct lustre_id llr_pid;
1037 struct llog_rec_tail llr_tail;
1038 } __attribute__((packed));
1040 /* On-disk header structure of each log object, stored in little endian order */
1041 #define LLOG_CHUNK_SIZE 8192
1042 #define LLOG_HEADER_SIZE (96)
1043 #define LLOG_BITMAP_BYTES (LLOG_CHUNK_SIZE - LLOG_HEADER_SIZE)
1045 #define LLOG_MIN_REC_SIZE (24) /* round(llog_rec_hdr + llog_rec_tail) */
1047 /* flags for the logs */
1048 #define LLOG_F_ZAP_WHEN_EMPTY 0x1
1049 #define LLOG_F_IS_CAT 0x2
1050 #define LLOG_F_IS_PLAIN 0x4
1052 struct llog_log_hdr {
1053 struct llog_rec_hdr llh_hdr;
1054 __u64 llh_timestamp;
1056 __u32 llh_bitmap_offset;
1060 /* for a catalog the first plain slot is next to it */
1061 struct obd_uuid llh_tgtuuid;
1062 __u32 llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32) - 23];
1063 __u32 llh_bitmap[LLOG_BITMAP_BYTES/sizeof(__u32)];
1064 struct llog_rec_tail llh_tail;
1065 } __attribute__((packed));
1067 #define LLOG_BITMAP_SIZE(llh) ((llh->llh_hdr.lrh_len - \
1068 llh->llh_bitmap_offset - \
1069 sizeof(llh->llh_tail)) * 8)
1071 /* log cookies are used to reference a specific log file and a record therein */
1072 struct llog_cookie {
1073 struct llog_logid lgc_lgl;
1077 } __attribute__((packed));
1080 enum llogd_rpc_ops {
1081 LLOG_ORIGIN_HANDLE_OPEN = 501,
1082 LLOG_ORIGIN_HANDLE_NEXT_BLOCK = 502,
1083 LLOG_ORIGIN_HANDLE_READ_HEADER = 503,
1084 LLOG_ORIGIN_HANDLE_WRITE_REC = 504,
1085 LLOG_ORIGIN_HANDLE_CLOSE = 505,
1086 LLOG_ORIGIN_CONNECT = 506,
1087 LLOG_CATINFO = 507, /* for lfs catinfo */
1088 LLOG_ORIGIN_HANDLE_PREV_BLOCK = 508,
1092 struct llog_logid lgd_logid;
1094 __u32 lgd_llh_flags;
1096 __u32 lgd_saved_index;
1098 __u64 lgd_cur_offset;
1099 } __attribute__((packed));
1101 struct llogd_conn_body {
1102 struct llog_gen lgdc_gen;
1103 struct llog_logid lgdc_logid;
1104 __u32 lgdc_ctxt_idx;
1105 } __attribute__((packed));
1107 extern void lustre_swab_llogd_body (struct llogd_body *d);
1108 extern void lustre_swab_llog_hdr (struct llog_log_hdr *h);
1109 extern void lustre_swab_llogd_conn_body (struct llogd_conn_body *d);
1111 static inline struct lustre_id *obdo_id(struct obdo *oa)
1113 void *raw_id = oa->o_inline + sizeof(struct lustre_handle) +
1114 sizeof(struct llog_cookie);
1116 return (struct lustre_id *)raw_id;