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_
51 #ifdef HAVE_ASM_TYPES_H
52 #include <asm/types.h>
59 # include <linux/ioctl.h>
60 # include <linux/types.h>
61 # include <linux/list.h>
62 # include <linux/string.h> /* for strncpy, below */
63 # include <linux/fs.h> /* to check for FMODE_EXEC, dev_t, lest we redefine */
66 # include <sys/types.h>
70 # include <libcfs/list.h>
74 /* Defn's shared with user-space. */
75 #include <lustre/lustre_user.h>
78 * this file contains all data structures used in Lustre interfaces:
79 * - obdo and obd_request records
80 * - mds_request records
88 /* FOO_REQUEST_PORTAL is for incoming requests on the FOO
89 * FOO_REPLY_PORTAL is for incoming replies on the FOO
90 * FOO_BULK_PORTAL is for incoming bulk on the FOO
93 #define CONNMGR_REQUEST_PORTAL 1
94 #define CONNMGR_REPLY_PORTAL 2
95 //#define OSC_REQUEST_PORTAL 3
96 #define OSC_REPLY_PORTAL 4
97 //#define OSC_BULK_PORTAL 5
98 #define OST_REQUEST_PORTAL 6
99 #define OST_CREATE_PORTAL 7
100 #define OST_BULK_PORTAL 8
101 //#define MDC_REQUEST_PORTAL 9
102 #define MDC_REPLY_PORTAL 10
103 //#define MDC_BULK_PORTAL 11
104 #define MDS_REQUEST_PORTAL 12
105 //#define MDS_REPLY_PORTAL 13
106 #define MDS_BULK_PORTAL 14
107 #define LDLM_CB_REQUEST_PORTAL 15
108 #define LDLM_CB_REPLY_PORTAL 16
109 #define LDLM_CANCEL_REQUEST_PORTAL 17
110 #define LDLM_CANCEL_REPLY_PORTAL 18
111 #define PTLBD_REQUEST_PORTAL 19
112 #define PTLBD_REPLY_PORTAL 20
113 #define PTLBD_BULK_PORTAL 21
114 #define MDS_SETATTR_PORTAL 22
115 #define MDS_READPAGE_PORTAL 23
116 #define MGMT_REQUEST_PORTAL 24
117 #define MGMT_REPLY_PORTAL 25
118 #define MGMT_CLI_REQUEST_PORTAL 26
119 #define MGMT_CLI_REPLY_PORTAL 27
124 #define SVC_RUNNING 8
125 #define SVC_STOPPING 16
126 #define SVC_STOPPED 32
129 #define PTL_RPC_MSG_REQUEST 4711
130 #define PTL_RPC_MSG_ERR 4712
131 #define PTL_RPC_MSG_REPLY 4713
133 #define PTLRPC_MSG_MAGIC 0x0BD00BD0
136 #define PTLRPC_MSG_VERSION 0x00000003
137 #define LUSTRE_VERSION_MASK 0xffff0000
138 #define LUSTRE_OBD_VERSION 0x00010000
139 #define LUSTRE_MDS_VERSION 0x00020000
140 #define LUSTRE_OST_VERSION 0x00030000
141 #define LUSTRE_DLM_VERSION 0x00040000
142 #define LUSTRE_LOG_VERSION 0x00050000
143 #define LUSTRE_PBD_VERSION 0x00060000
145 struct lustre_handle {
148 #define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL
150 /* we depend on this structure to be 8-byte aligned */
151 /* this type is only endian-adjusted in lustre_unpack_msg() */
153 struct lustre_handle handle;
159 __u64 last_committed;
168 /* Flags that are operation-specific go in the top 16 bits. */
169 #define MSG_OP_FLAG_MASK 0xffff0000
170 #define MSG_OP_FLAG_SHIFT 16
172 /* Flags that apply to all requests are in the bottom 16 bits */
173 #define MSG_GEN_FLAG_MASK 0x0000ffff
174 #define MSG_LAST_REPLAY 1
178 static inline int lustre_msg_get_flags(struct lustre_msg *msg)
180 return (msg->flags & MSG_GEN_FLAG_MASK);
183 static inline void lustre_msg_add_flags(struct lustre_msg *msg, int flags)
185 msg->flags |= MSG_GEN_FLAG_MASK & flags;
188 static inline void lustre_msg_set_flags(struct lustre_msg *msg, int flags)
190 msg->flags &= ~MSG_GEN_FLAG_MASK;
191 lustre_msg_add_flags(msg, flags);
194 static inline void lustre_msg_clear_flags(struct lustre_msg *msg, int flags)
196 msg->flags &= ~(MSG_GEN_FLAG_MASK & flags);
199 static inline int lustre_msg_get_op_flags(struct lustre_msg *msg)
201 return (msg->flags >> MSG_OP_FLAG_SHIFT);
204 static inline void lustre_msg_add_op_flags(struct lustre_msg *msg, int flags)
206 msg->flags |= ((flags & MSG_GEN_FLAG_MASK) << MSG_OP_FLAG_SHIFT);
209 static inline void lustre_msg_set_op_flags(struct lustre_msg *msg, int flags)
211 msg->flags &= ~MSG_OP_FLAG_MASK;
212 lustre_msg_add_op_flags(msg, flags);
216 * Flags for all connect opcodes (MDS_CONNECT, OST_CONNECT)
219 #define MSG_CONNECT_RECOVERING 0x1
220 #define MSG_CONNECT_RECONNECT 0x2
221 #define MSG_CONNECT_REPLAYABLE 0x4
222 #define MSG_CONNECT_PEER 0x8
223 #define MSG_CONNECT_LIBCLIENT 0x10
224 #define MSG_CONNECT_INITIAL 0x20
225 #define MSG_CONNECT_ASYNC 0x40
228 * OST requests: OBDO & OBD request records
233 OST_REPLY = 0, /* reply ? */
253 #define OST_FIRST_OPC OST_REPLY
255 typedef uint64_t obd_id;
256 typedef uint64_t obd_gr;
257 typedef uint64_t obd_time;
258 typedef uint64_t obd_size;
259 typedef uint64_t obd_off;
260 typedef uint64_t obd_blocks;
261 typedef uint32_t obd_blksize;
262 typedef uint32_t obd_mode;
263 typedef uint32_t obd_uid;
264 typedef uint32_t obd_gid;
265 typedef uint32_t obd_flags;
266 typedef uint64_t obd_valid;
267 typedef uint32_t obd_count;
269 #define OBD_FL_INLINEDATA (0x00000001)
270 #define OBD_FL_OBDMDEXISTS (0x00000002)
271 #define OBD_FL_DELORPHAN (0x00000004) /* if set in o_flags delete orphans */
272 #define OBD_FL_NORPC (0x00000008) // if set in o_flags set in OSC not OST
273 #define OBD_FL_IDONLY (0x00000010) // if set in o_flags only adjust obj id
274 #define OBD_FL_RECREATE_OBJS (0x00000020) // recreate missing obj
275 #define OBD_FL_DEBUG_CHECK (0x00000040) /* echo client/server debug check */
277 /* this should be sizeof(struct lustre_handle) + sizeof(struct llog_cookie) +
278 * sizeof(struct lustre_id). */
279 #define OBD_INLINESZ (80)
281 /* Note: 64-bit types are 64-bit aligned in structure */
289 obd_blocks o_blocks; /* brw: cli sent cached bytes */
291 obd_blksize o_blksize; /* optimal IO blocksize */
292 obd_mode o_mode; /* brw: cli sent cache remain */
296 obd_count o_nlink; /* brw: checksum */
297 obd_count o_generation;
298 obd_valid o_valid; /* hot fields in this obdo */
299 obd_count o_misc; /* brw: o_dropped */
300 __u32 o_easize; /* epoch in ost writes */
304 char o_inline[OBD_INLINESZ]; /* fid in ost writes */
307 #define o_dirty o_blocks
308 #define o_undirty o_mode
309 #define o_dropped o_misc
310 #define o_cksum o_nlink
312 extern void lustre_swab_obdo (struct obdo *o);
314 #define LOV_MAGIC_V1 0x0BD10BD0
315 #define LOV_MAGIC LOV_MAGIC_V1
317 #define LOV_PATTERN_RAID0 0x001 /* stripes are used round-robin */
318 #define LOV_PATTERN_RAID1 0x002 /* stripes are mirrors of each other */
319 #define LOV_PATTERN_FIRST 0x100 /* first stripe is not in round-robin */
320 #define LOV_PATTERN_CMOBD 0x200
322 #define lov_ost_data lov_ost_data_v1
323 struct lov_ost_data_v1 { /* per-stripe data structure (little-endian)*/
324 __u64 l_object_id; /* OST object ID */
325 __u64 l_object_gr; /* OST object group (creating MDS number) */
326 __u32 l_ost_gen; /* generation of this l_ost_idx */
327 __u32 l_ost_idx; /* OST index in LOV (lov_tgt_desc->tgts) */
330 #define lov_mds_md lov_mds_md_v1
331 struct lov_mds_md_v1 { /* LOV EA mds/wire data (little-endian) */
332 __u32 lmm_magic; /* magic number = LOV_MAGIC_V1 */
333 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
334 __u64 lmm_object_id; /* LOV object ID */
335 __u64 lmm_object_gr; /* LOV object group */
336 __u32 lmm_stripe_size; /* size of stripe in bytes */
337 __u32 lmm_stripe_count; /* num stripes in use for this object */
338 struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
341 #define LOV_MAGIC_V0 0x0BD00BD0
343 struct lov_ost_data_v0 { /* per-stripe data structure (little-endian)*/
344 __u64 l_object_id; /* OST object ID */
347 struct lov_mds_md_v0 { /* LOV EA mds/wire data (little-endian) */
348 __u32 lmm_magic; /* magic number = LOV_MAGIC_V0 */
349 __u64 lmm_object_id; /* LOV object ID */
350 __u32 lmm_stripe_size; /* size of the stripe in bytes (not RAID1) */
351 __u32 lmm_stripe_offset; /* starting stripe offset in lmm_objects */
352 __u16 lmm_stripe_count; /* number of stipes in use for this object */
353 __u16 lmm_ost_count; /* how many OST idx are in this LOV md */
354 struct lov_ost_data_v0 lmm_objects[0];
355 } __attribute__((packed));
357 #define OBD_MD_FLALL (0xffffffffffffffffLL)
358 #define OBD_MD_FLID (0x0000000000000001LL) /* object ID */
359 #define OBD_MD_FLATIME (0x0000000000000002LL) /* access time */
360 #define OBD_MD_FLMTIME (0x0000000000000004LL) /* data modification time */
361 #define OBD_MD_FLCTIME (0x0000000000000008LL) /* change time */
362 #define OBD_MD_FLSIZE (0x0000000000000010LL) /* size */
363 #define OBD_MD_FLBLOCKS (0x0000000000000020LL) /* allocated blocks count */
364 #define OBD_MD_FLBLKSZ (0x0000000000000040LL) /* block size */
365 #define OBD_MD_FLMODE (0x0000000000000080LL) /* access bits (mode & ~S_IFMT) */
366 #define OBD_MD_FLTYPE (0x0000000000000100LL) /* object type (mode & S_IFMT) */
367 #define OBD_MD_FLUID (0x0000000000000200LL) /* user ID */
368 #define OBD_MD_FLGID (0x0000000000000400LL) /* group ID */
369 #define OBD_MD_FLFLAGS (0x0000000000000800LL) /* flags word */
370 #define OBD_MD_FLEA (0x0000000000001000LL) /* extended attributes */
371 #define OBD_MD_FLNLINK (0x0000000000002000LL) /* link count */
372 #define OBD_MD_FLGENER (0x0000000000004000LL) /* generation number */
373 #define OBD_MD_FLINLINE (0x0000000000008000LL) /* inline data */
374 #define OBD_MD_FLRDEV (0x0000000000010000LL) /* device number */
375 #define OBD_MD_FLEASIZE (0x0000000000020000LL) /* extended attribute data */
376 #define OBD_MD_LINKNAME (0x0000000000040000LL) /* symbolic link target */
377 #define OBD_MD_FLHANDLE (0x0000000000080000LL) /* file handle */
378 #define OBD_MD_FLCKSUM (0x0000000000100000LL) /* bulk data checksum */
379 #define OBD_MD_FLQOS (0x0000000000200000LL) /* quality of service stats */
380 #define OBD_MD_FLOSCOPQ (0x0000000000400000LL) /* osc opaque data */
381 #define OBD_MD_FLCOOKIE (0x0000000000800000LL) /* log cancellation cookie */
382 #define OBD_MD_FLGROUP (0x0000000001000000LL) /* group */
383 #define OBD_MD_FLIFID (0x0000000002000000LL) /* ->ost write inline fid */
384 #define OBD_MD_FLEPOCH (0x0000000004000000LL) /* ->ost write easize is epoch */
385 #define OBD_MD_FLGRANT (0x0000000008000000LL) /* ost preallocation space grant */
386 #define OBD_MD_MDS (0x0000000010000000LL) /* where an inode lives on */
387 #define OBD_MD_FLDIREA (0x0000000020000000LL) /* dir's extended attribute data */
388 #define OBD_MD_REINT (0x0000000040000000LL) /* reintegrate oa */
389 #define OBD_MD_FID (0x0000000080000000LL) /* lustre_id data */
390 #define OBD_MD_MEA (0x0000000100000000LL) /* shows we are interested in MEA */
391 #define OBD_MD_FLEALIST (0x0000000200000000LL) /* list extended attributes */
392 #define OBD_MD_FLACL_ACCESS (0x0000000400000000LL) /*access acl*/
394 #define OBD_MD_FLNOTOBD (~(OBD_MD_FLBLOCKS | OBD_MD_LINKNAME | \
395 OBD_MD_FLEASIZE | OBD_MD_FLHANDLE | \
396 OBD_MD_FLCKSUM | OBD_MD_FLQOS | \
397 OBD_MD_FLOSCOPQ | OBD_MD_FLCOOKIE | \
398 OBD_MD_FLEA | OBD_MD_FLEALIST | \
399 OBD_MD_FLACL_ACCESS | OBD_MD_MDS))
401 static inline struct lustre_handle *obdo_handle(struct obdo *oa)
403 return (struct lustre_handle *)oa->o_inline;
406 static inline struct llog_cookie *obdo_logcookie(struct obdo *oa)
408 return (struct llog_cookie *)(oa->o_inline +
409 sizeof(struct lustre_handle));
412 /* don't forget obdo_fid which is way down at the bottom so it can come after
413 * the definition of llog_cookie */
428 extern void lustre_swab_obd_statfs (struct obd_statfs *os);
430 /* ost_body.data values for OST_BRW */
432 #define OBD_BRW_READ 0x01
433 #define OBD_BRW_WRITE 0x02
434 #define OBD_BRW_RWMASK (OBD_BRW_READ | OBD_BRW_WRITE)
435 #define OBD_BRW_SYNC 0x08
436 #define OBD_BRW_CHECK 0x10
437 #define OBD_BRW_FROM_GRANT 0x20 /* the osc manages this under llite */
438 #define OBD_BRW_GRANTED 0x40 /* the ost manages this */
440 #define OBD_OBJECT_EOF 0xffffffffffffffffULL
442 #define OST_MIN_PRECREATE 32
443 #define OST_MAX_PRECREATE 20000
452 extern void lustre_swab_obd_ioobj (struct obd_ioobj *ioo);
454 /* multiple of 8 bytes => can array */
455 struct niobuf_remote {
461 extern void lustre_swab_niobuf_remote (struct niobuf_remote *nbr);
463 /* request structure for OST's */
465 #define OST_REQ_HAS_OA1 0x1
471 extern void lustre_swab_ost_body (struct ost_body *b);
472 extern void lustre_swab_ost_last_id(obd_id *id);
473 extern void lustre_swab_generic_32s(__u32 *val);
475 /* lock value block communicated between the filter and llite */
485 extern void lustre_swab_ost_lvb(struct ost_lvb *);
491 /* offsets in the request */
492 #define MDS_REQ_SECDESC_OFF 0
493 #define MDS_REQ_REC_OFF 1
495 #define MDS_REQ_INTENT_LOCKREQ_OFF 1
496 #define MDS_REQ_INTENT_IT_OFF 2
497 #define MDS_REQ_INTENT_REC_OFF 3
499 /* maximum supplementary groups */
500 #define LUSTRE_MAX_GROUPS 128
503 * security descriptor in mds request
505 struct mds_req_sec_desc {
515 struct ptlrpc_request;
516 struct mds_req_sec_desc *lustre_swab_mds_secdesc(struct ptlrpc_request *req,
522 MDS_GETATTR_LOCK = 34,
533 MDS_DONE_WRITING = 45,
537 #define MDS_FIRST_OPC MDS_GETATTR
543 #define REINT_SETATTR 1
544 #define REINT_CREATE 2
546 #define REINT_UNLINK 4
547 #define REINT_RENAME 5
549 #define REINT_CLOSE 7
550 #define REINT_WRITE 8
553 /* the disposition of the intent outlines what was executed */
554 #define DISP_IT_EXECD (1 << 0)
555 #define DISP_LOOKUP_EXECD (1 << 1)
556 #define DISP_LOOKUP_NEG (1 << 2)
557 #define DISP_LOOKUP_POS (1 << 3)
558 #define DISP_OPEN_CREATE (1 << 4)
559 #define DISP_OPEN_OPEN (1 << 5)
560 #define DISP_ENQ_COMPLETE (1 << 6)
562 /* INODE LOCK PARTS */
563 #define MDS_INODELOCK_LOOKUP 0x000001 /* dentry, mode, owner, group */
564 #define MDS_INODELOCK_UPDATE 0x000002 /* size, links, timestamps */
565 #define MDS_INODELOCK_OPEN 0x000004 /* for opened files */
567 /* do not forget to increase MDS_INODELOCK_MAXSHIFT when adding new bits */
568 #define MDS_INODELOCK_MAXSHIFT 2
570 /* this FULL lock is useful to take on unlink sort of operations */
571 #define MDS_INODELOCK_FULL ((1 << (MDS_INODELOCK_MAXSHIFT + 1)) - 1)
573 /* lustre store cookie */
577 __u64 l3s_ino; /* inode number on local MDS */
578 __u32 l3s_gen; /* inode generation */
579 __u32 l3s_type; /* inode type */
586 __u64 lf_id; /* fid counter maintained on per
588 __u64 lf_group; /* sequence group num */
589 __u32 lf_version; /* what snapfs version of inode */
594 struct lustre_stc li_stc; /* store cookie */
595 struct lustre_fid li_fid; /* fid cookie */
601 struct lustre_id mea_ids[0];
604 #define MEA_MAGIC_LAST_CHAR 0xb2221ca1
605 #define MEA_MAGIC_ALL_CHARS 0xb222a11c
611 struct lustre_id mea_ids[0];
614 #define MDS_STATUS_CONN 1
615 #define MDS_STATUS_LOV 2
617 struct mds_status_req {
622 extern void lustre_swab_lustre_id(struct lustre_id *id);
623 extern void lustre_swab_lustre_stc(struct lustre_stc *stc);
624 extern void lustre_swab_lustre_fid(struct lustre_fid *fid);
625 extern void lustre_swab_mds_status_req (struct mds_status_req *r);
627 #define MDS_BFLAG_UNCOMMITTED_WRITES 0x1
630 struct lustre_id id1;
631 struct lustre_id id2;
632 struct lustre_handle handle;
633 __u64 size; /* Offset, in the case of MDS_READPAGE */
634 __u64 blocks; /* XID, in the case of MDS_READPAGE */
643 __u32 flags; /* from vfs for pin/unpin, MDS_BFLAG for close */
645 __u32 nlink; /* #bytes to read in the case of MDS_READPAGE */
649 extern void lustre_swab_mds_body (struct mds_body *b);
652 struct mds_body *body;
653 struct lov_stripe_md *lsm;
655 struct posix_acl *acl_access;
659 struct lustre_id id1;
660 struct lustre_id id2;
665 struct mea *mea1; /* mea of inode1 */
666 struct mea *mea2; /* mea of inode2 */
670 #define MDS_MODE_DONT_LOCK (1 << 30)
671 #define MDS_MODE_REPLAY (1 << 31)
673 struct mds_rec_setattr {
676 struct lustre_id sa_id;
687 /* XXX Following ATTR_XXX should go to vfs patch... */
688 #ifdef ATTR_CTIME_SET
689 #error "ATTR_CTIME_SET has been defined somewhere else"
692 #error "ATTR_EA has been defined somewhere else"
695 #error "ATTR_EA_RM has been defined somewhere else"
698 #define ATTR_CTIME_SET 0x00002000
699 #define ATTR_EA 0x00040000
700 #define ATTR_EA_RM 0x00080000
702 extern void lustre_swab_mds_rec_setattr (struct mds_rec_setattr *sa);
705 #define FMODE_READ 00000001
706 #define FMODE_WRITE 00000002
709 #define FMODE_EXEC 00000004
711 #define MDS_OPEN_CREAT 00000100
712 #define MDS_OPEN_EXCL 00000200
713 #define MDS_OPEN_TRUNC 00001000
714 #define MDS_OPEN_APPEND 00002000
715 #define MDS_OPEN_SYNC 00010000
716 #define MDS_OPEN_DIRECTORY 00200000
718 #define MDS_OPEN_DELAY_CREATE 0100000000 /* delay initial object create */
719 #define MDS_OPEN_HAS_EA 010000000000 /* specify object create pattern */
720 #define MDS_OPEN_HAS_OBJS 020000000000 /* just set the EA the obj exist */
722 struct mds_rec_create {
724 __u32 cr_flags; /* for use with open */
727 struct lustre_id cr_id;
728 struct lustre_id cr_replayid;
733 extern void lustre_swab_mds_rec_create (struct mds_rec_create *cr);
735 struct mds_rec_link {
738 struct lustre_id lk_id1;
739 struct lustre_id lk_id2;
743 extern void lustre_swab_mds_rec_link (struct mds_rec_link *lk);
745 struct mds_rec_unlink {
748 struct lustre_id ul_id1;
749 struct lustre_id ul_id2;
753 extern void lustre_swab_mds_rec_unlink (struct mds_rec_unlink *ul);
755 struct mds_rec_rename {
758 struct lustre_id rn_id1;
759 struct lustre_id rn_id2;
763 extern void lustre_swab_mds_rec_rename (struct mds_rec_rename *rn);
766 * LOV data structures
769 #define LOV_MAX_UUID_BUFFER_SIZE 8192
770 /* The size of the buffer the lov/mdc reserves for the
771 * array of UUIDs returned by the MDS. With the current
772 * protocol, this will limit the max number of OSTs per LOV */
775 __u32 ld_tgt_count; /* how many OBD's */
776 __u32 ld_active_tgt_count; /* how many active */
777 __u32 ld_default_stripe_count; /* how many objects are used */
778 __u32 ld_pattern; /* PATTERN_RAID0, PATTERN_RAID1 */
779 __u64 ld_default_stripe_size; /* in bytes */
780 __u64 ld_default_stripe_offset; /* in bytes */
781 struct obd_uuid ld_uuid;
785 __u32 ld_tgt_count; /* how many MDS's */
786 __u32 ld_active_tgt_count; /* how many active */
787 struct obd_uuid ld_uuid;
790 extern void lustre_swab_lov_desc (struct lov_desc *ld);
795 /* opcodes -- MUST be distinct from OST/MDS opcodes */
800 LDLM_BL_CALLBACK = 104,
801 LDLM_CP_CALLBACK = 105,
802 LDLM_GL_CALLBACK = 106,
805 #define LDLM_FIRST_OPC LDLM_ENQUEUE
807 #define RES_NAME_SIZE 4
809 __u64 name[RES_NAME_SIZE];
812 extern void lustre_swab_ldlm_res_id (struct ldlm_res_id *id);
830 struct ldlm_inodebits {
839 __u64 blocking_export;
842 /* it's important that the fields of the ldlm_extent structure match
843 * the first fields of the ldlm_flock structure because there is only
844 * one ldlm_swab routine to process the ldlm_policy_data_t union. if
845 * this ever changes we will need to swab the union differently based
846 * on the resource type. */
849 struct ldlm_extent l_extent;
850 struct ldlm_flock l_flock;
851 struct ldlm_inodebits l_inodebits;
852 } ldlm_policy_data_t;
854 extern void lustre_swab_ldlm_policy_data (ldlm_policy_data_t *d);
860 extern void lustre_swab_ldlm_intent (struct ldlm_intent *i);
862 struct ldlm_resource_desc {
865 struct ldlm_res_id lr_name;
868 extern void lustre_swab_ldlm_resource_desc (struct ldlm_resource_desc *r);
870 struct ldlm_lock_desc {
871 struct ldlm_resource_desc l_resource;
872 ldlm_mode_t l_req_mode;
873 ldlm_mode_t l_granted_mode;
874 ldlm_policy_data_t l_policy_data;
877 extern void lustre_swab_ldlm_lock_desc (struct ldlm_lock_desc *l);
879 struct ldlm_request {
882 struct ldlm_lock_desc lock_desc;
883 struct lustre_handle lock_handle1;
884 struct lustre_handle lock_handle2;
887 extern void lustre_swab_ldlm_request (struct ldlm_request *rq);
892 struct ldlm_lock_desc lock_desc;
893 struct lustre_handle lock_handle;
894 __u64 lock_policy_res1;
895 __u64 lock_policy_res2;
898 extern void lustre_swab_ldlm_reply (struct ldlm_reply *r);
901 * ptlbd, portal block device requests
909 PTLBD_DISCONNECT = 205,
912 #define PTLBD_FIRST_OPC PTLBD_QUERY
922 extern void lustre_swab_ptlbd_op (struct ptlbd_op *op);
931 extern void lustre_swab_ptlbd_niob (struct ptlbd_niob *n);
938 extern void lustre_swab_ptlbd_rsp (struct ptlbd_rsp *r);
941 * Opcodes for management/monitoring node.
946 MGMT_EXCEPTION, /* node died, etc. */
949 #define MGMT_FIRST_OPC MGMT_CONNECT
952 * Opcodes for multiple servers.
960 #define OBD_FIRST_OPC OBD_PING
962 /* catalog of log objects */
964 /* Identifier for a single log object */
969 } __attribute__((packed));
971 /* Records written to the CATALOGS list */
972 #define CATLIST "CATALOGS"
974 struct llog_logid lci_logid;
975 __u32 lci_padding[3];
976 } __attribute__((packed));
978 /* Log data record types - there is no specific reason that these need to
979 * be related to the RPC opcodes, but no reason not to (may be handy later?)
982 OST_SZ_REC = 0x10600000 | (OST_SAN_WRITE << 8),
983 OST_RAID1_REC = 0x10600000 | ((OST_SAN_WRITE + 1) << 8),
984 MDS_UNLINK_REC = 0x10610000 | (MDS_REINT << 8) | REINT_UNLINK,
985 OBD_CFG_REC = 0x10620000,
986 PTL_CFG_REC = 0x10630000,
987 LLOG_GEN_REC = 0x10640000,
988 LLOG_HDR_MAGIC = 0x10645539,
989 LLOG_LOGID_MAGIC = 0x1064553b,
990 SMFS_UPDATE_REC = 0x10650000,
991 CACHE_LRU_REC = 0x10660000,
994 /* Log record header - stored in little endian order.
995 * Each record must start with this struct, end with a llog_rec_tail,
996 * and be a multiple of 256 bits in size.
998 struct llog_rec_hdr {
1005 struct llog_rec_tail {
1010 struct llog_logid_rec {
1011 struct llog_rec_hdr lid_hdr;
1012 struct llog_logid lid_id;
1014 struct llog_rec_tail lid_tail;
1015 } __attribute__((packed));
1017 struct llog_create_rec {
1018 struct llog_rec_hdr lcr_hdr;
1019 struct lustre_id lcr_id;
1023 struct llog_rec_tail lcr_tail;
1024 } __attribute__((packed));
1026 struct llog_orphan_rec {
1027 struct llog_rec_hdr lor_hdr;
1031 struct llog_rec_tail lor_tail;
1032 } __attribute__((packed));
1034 struct llog_unlink_rec {
1035 struct llog_rec_hdr lur_hdr;
1039 struct llog_rec_tail lur_tail;
1040 } __attribute__((packed));
1042 struct llog_size_change_rec {
1043 struct llog_rec_hdr lsc_hdr;
1044 struct lustre_id lsc_id;
1047 struct llog_rec_tail lsc_tail;
1048 } __attribute__((packed));
1055 struct llog_gen_rec {
1056 struct llog_rec_hdr lgr_hdr;
1057 struct llog_gen lgr_gen;
1058 struct llog_rec_tail lgr_tail;
1059 } __attribute__((packed));
1061 struct llog_lru_rec {
1062 struct llog_rec_hdr llr_hdr;
1063 struct lustre_id llr_cid;
1064 struct lustre_id llr_pid;
1065 struct llog_rec_tail llr_tail;
1066 } __attribute__((packed));
1068 /* On-disk header structure of each log object, stored in little endian order */
1069 #define LLOG_CHUNK_SIZE 8192
1070 #define LLOG_HEADER_SIZE (96)
1071 #define LLOG_BITMAP_BYTES (LLOG_CHUNK_SIZE - LLOG_HEADER_SIZE)
1073 #define LLOG_MIN_REC_SIZE (24) /* round(llog_rec_hdr + llog_rec_tail) */
1075 /* flags for the logs */
1076 #define LLOG_F_ZAP_WHEN_EMPTY 0x1
1077 #define LLOG_F_IS_CAT 0x2
1078 #define LLOG_F_IS_PLAIN 0x4
1080 struct llog_log_hdr {
1081 struct llog_rec_hdr llh_hdr;
1082 __u64 llh_timestamp;
1084 __u32 llh_bitmap_offset;
1088 /* for a catalog the first plain slot is next to it */
1089 struct obd_uuid llh_tgtuuid;
1090 __u32 llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32) - 23];
1091 __u32 llh_bitmap[LLOG_BITMAP_BYTES/sizeof(__u32)];
1092 struct llog_rec_tail llh_tail;
1093 } __attribute__((packed));
1095 #define LLOG_BITMAP_SIZE(llh) ((llh->llh_hdr.lrh_len - \
1096 llh->llh_bitmap_offset - \
1097 sizeof(llh->llh_tail)) * 8)
1099 /* log cookies are used to reference a specific log file and a record therein */
1100 struct llog_cookie {
1101 struct llog_logid lgc_lgl;
1105 } __attribute__((packed));
1108 enum llogd_rpc_ops {
1109 LLOG_ORIGIN_HANDLE_OPEN = 501,
1110 LLOG_ORIGIN_HANDLE_NEXT_BLOCK = 502,
1111 LLOG_ORIGIN_HANDLE_READ_HEADER = 503,
1112 LLOG_ORIGIN_HANDLE_WRITE_REC = 504,
1113 LLOG_ORIGIN_HANDLE_CLOSE = 505,
1114 LLOG_ORIGIN_CONNECT = 506,
1115 LLOG_CATINFO = 507, /* for lfs catinfo */
1116 LLOG_ORIGIN_HANDLE_PREV_BLOCK = 508,
1120 struct llog_logid lgd_logid;
1122 __u32 lgd_llh_flags;
1124 __u32 lgd_saved_index;
1126 __u64 lgd_cur_offset;
1127 } __attribute__((packed));
1129 struct llogd_conn_body {
1130 struct llog_gen lgdc_gen;
1131 struct llog_logid lgdc_logid;
1132 __u32 lgdc_ctxt_idx;
1133 } __attribute__((packed));
1135 extern void lustre_swab_llogd_body (struct llogd_body *d);
1136 extern void lustre_swab_llog_hdr (struct llog_log_hdr *h);
1137 extern void lustre_swab_llogd_conn_body (struct llogd_conn_body *d);
1139 static inline struct lustre_id *obdo_id(struct obdo *oa)
1141 void *raw_id = oa->o_inline + sizeof(struct lustre_handle) +
1142 sizeof(struct llog_cookie);
1144 return (struct lustre_id *)raw_id;
1147 /* security negotiate */
1150 SEC_INIT_CONTINUE = 601,
1154 #define SEC_FIRST_OPC SEC_INIT