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
141 #define LUSTRE_PTL_PID 999999
142 #define LUSTRE_SRV_PTL_PID LUSTRE_PTL_PID
144 struct lustre_handle {
147 #define DEAD_HANDLE_MAGIC 0xdeadbeefcafebabeULL
149 /* we depend on this structure to be 8-byte aligned */
150 /* this type is only endian-adjusted in lustre_unpack_msg() */
152 struct lustre_handle handle;
158 __u64 last_committed;
167 /* Flags that are operation-specific go in the top 16 bits. */
168 #define MSG_OP_FLAG_MASK 0xffff0000
169 #define MSG_OP_FLAG_SHIFT 16
171 /* Flags that apply to all requests are in the bottom 16 bits */
172 #define MSG_GEN_FLAG_MASK 0x0000ffff
173 #define MSG_LAST_REPLAY 1
177 static inline int lustre_msg_get_flags(struct lustre_msg *msg)
179 return (msg->flags & MSG_GEN_FLAG_MASK);
182 static inline void lustre_msg_add_flags(struct lustre_msg *msg, int flags)
184 msg->flags |= MSG_GEN_FLAG_MASK & flags;
187 static inline void lustre_msg_set_flags(struct lustre_msg *msg, int flags)
189 msg->flags &= ~MSG_GEN_FLAG_MASK;
190 lustre_msg_add_flags(msg, flags);
193 static inline void lustre_msg_clear_flags(struct lustre_msg *msg, int flags)
195 msg->flags &= ~(MSG_GEN_FLAG_MASK & flags);
198 static inline int lustre_msg_get_op_flags(struct lustre_msg *msg)
200 return (msg->flags >> MSG_OP_FLAG_SHIFT);
203 static inline void lustre_msg_add_op_flags(struct lustre_msg *msg, int flags)
205 msg->flags |= ((flags & MSG_GEN_FLAG_MASK) << MSG_OP_FLAG_SHIFT);
208 static inline void lustre_msg_set_op_flags(struct lustre_msg *msg, int flags)
210 msg->flags &= ~MSG_OP_FLAG_MASK;
211 lustre_msg_add_op_flags(msg, flags);
215 * Flags for all connect opcodes (MDS_CONNECT, OST_CONNECT)
218 #define MSG_CONNECT_RECOVERING 0x1
219 #define MSG_CONNECT_RECONNECT 0x2
220 #define MSG_CONNECT_REPLAYABLE 0x4
221 //#define MSG_CONNECT_PEER 0x8
222 #define MSG_CONNECT_LIBCLIENT 0x10
223 #define MSG_CONNECT_INITIAL 0x20
226 * OST requests: OBDO & OBD request records
231 OST_REPLY = 0, /* reply ? */
251 #define OST_FIRST_OPC OST_REPLY
253 typedef uint64_t obd_id;
254 typedef uint64_t obd_gr;
255 typedef uint64_t obd_time;
256 typedef uint64_t obd_size;
257 typedef uint64_t obd_off;
258 typedef uint64_t obd_blocks;
259 typedef uint32_t obd_blksize;
260 typedef uint32_t obd_mode;
261 typedef uint32_t obd_uid;
262 typedef uint32_t obd_gid;
263 typedef uint32_t obd_flag;
264 typedef uint32_t obd_count;
266 #define OBD_FL_INLINEDATA (0x00000001)
267 #define OBD_FL_OBDMDEXISTS (0x00000002)
268 #define OBD_FL_DELORPHAN (0x00000004) /* if set in o_flags delete orphans */
269 #define OBD_FL_NORPC (0x00000008) // if set in o_flags set in OSC not OST
270 #define OBD_FL_IDONLY (0x00000010) // if set in o_flags only adjust obj id
271 #define OBD_FL_RECREATE_OBJS (0x00000020) // recreate missing obj
273 #define OBD_INLINESZ 64
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_flag o_valid; /* hot fields in this obdo */
294 __u32 o_easize; /* epoch in ost writes */
297 char o_inline[OBD_INLINESZ]; /* fid in ost writes */
300 #define o_dirty o_blocks
301 #define o_undirty o_mode
302 #define o_dropped o_misc
303 #define o_cksum o_nlink
305 extern void lustre_swab_obdo (struct obdo *o);
307 #define LOV_MAGIC_V1 0x0BD10BD0
308 #define LOV_MAGIC LOV_MAGIC_V1
310 #define LOV_PATTERN_RAID0 0x001 /* stripes are used round-robin */
311 #define LOV_PATTERN_RAID1 0x002 /* stripes are mirrors of each other */
312 #define LOV_PATTERN_FIRST 0x100 /* first stripe is not in round-robin */
313 #define LOV_PATTERN_CMOBD 0x200
315 #define lov_ost_data lov_ost_data_v1
316 struct lov_ost_data_v1 { /* per-stripe data structure (little-endian)*/
317 __u64 l_object_id; /* OST object ID */
318 __u64 l_object_gr; /* OST object group (creating MDS number) */
319 __u32 l_ost_gen; /* generation of this l_ost_idx */
320 __u32 l_ost_idx; /* OST index in LOV (lov_tgt_desc->tgts) */
323 #define lov_mds_md lov_mds_md_v1
324 struct lov_mds_md_v1 { /* LOV EA mds/wire data (little-endian) */
325 __u32 lmm_magic; /* magic number = LOV_MAGIC_V1 */
326 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
327 __u64 lmm_object_id; /* LOV object ID */
328 __u64 lmm_object_gr; /* LOV object group */
329 __u32 lmm_stripe_size; /* size of stripe in bytes */
330 __u32 lmm_stripe_count; /* num stripes in use for this object */
331 struct lov_ost_data_v1 lmm_objects[0]; /* per-stripe data */
334 #define LOV_MAGIC_V0 0x0BD00BD0
336 struct lov_ost_data_v0 { /* per-stripe data structure (little-endian)*/
337 __u64 l_object_id; /* OST object ID */
340 struct lov_mds_md_v0 { /* LOV EA mds/wire data (little-endian) */
341 __u32 lmm_magic; /* magic number = LOV_MAGIC_V0 */
342 __u64 lmm_object_id; /* LOV object ID */
343 __u32 lmm_stripe_size; /* size of the stripe in bytes (not RAID1) */
344 __u32 lmm_stripe_offset; /* starting stripe offset in lmm_objects */
345 __u16 lmm_stripe_count; /* number of stipes in use for this object */
346 __u16 lmm_ost_count; /* how many OST idx are in this LOV md */
347 struct lov_ost_data_v0 lmm_objects[0];
348 } __attribute__((packed));
350 #define OBD_MD_FLALL (0xffffffff)
351 #define OBD_MD_FLID (0x00000001) /* object ID */
352 #define OBD_MD_FLATIME (0x00000002) /* access time */
353 #define OBD_MD_FLMTIME (0x00000004) /* data modification time */
354 #define OBD_MD_FLCTIME (0x00000008) /* change time */
355 #define OBD_MD_FLSIZE (0x00000010) /* size */
356 #define OBD_MD_FLBLOCKS (0x00000020) /* allocated blocks count */
357 #define OBD_MD_FLBLKSZ (0x00000040) /* block size */
358 #define OBD_MD_FLMODE (0x00000080) /* access bits (mode & ~S_IFMT) */
359 #define OBD_MD_FLTYPE (0x00000100) /* object type (mode & S_IFMT) */
360 #define OBD_MD_FLUID (0x00000200) /* user ID */
361 #define OBD_MD_FLGID (0x00000400) /* group ID */
362 #define OBD_MD_FLFLAGS (0x00000800) /* flags word */
363 #define OBD_MD_FLNLINK (0x00002000) /* link count */
364 #define OBD_MD_FLGENER (0x00004000) /* generation number */
365 #define OBD_MD_FLINLINE (0x00008000) /* inline data */
366 #define OBD_MD_FLRDEV (0x00010000) /* device number */
367 #define OBD_MD_FLEASIZE (0x00020000) /* extended attribute data */
368 #define OBD_MD_LINKNAME (0x00040000) /* symbolic link target */
369 #define OBD_MD_FLHANDLE (0x00080000) /* file handle */
370 #define OBD_MD_FLCKSUM (0x00100000) /* bulk data checksum */
371 #define OBD_MD_FLQOS (0x00200000) /* quality of service stats */
372 #define OBD_MD_FLOSCOPQ (0x00400000) /* osc opaque data */
373 #define OBD_MD_FLCOOKIE (0x00800000) /* log cancellation cookie */
374 #define OBD_MD_FLGROUP (0x01000000) /* group */
375 #define OBD_MD_FLIFID (0x02000000) /* ->ost write inline fid */
376 #define OBD_MD_FLEPOCH (0x04000000) /* ->ost write easize is epoch */
377 #define OBD_MD_FLGRANT (0x08000000) /* ost preallocation space grant */
378 #define OBD_MD_MDS (0x10000000) /* where an inode lives on */
379 #define OBD_MD_FLDIREA (0x20000000) /* dir's extended attribute data */
380 #define OBD_MD_REINT (0x40000000) /* reintegrate oa*/
381 #define OBD_MD_FLNOTOBD (~(OBD_MD_FLBLOCKS | OBD_MD_LINKNAME|\
382 OBD_MD_FLEASIZE | OBD_MD_FLHANDLE | OBD_MD_FLCKSUM|\
383 OBD_MD_FLQOS | OBD_MD_FLOSCOPQ | OBD_MD_FLCOOKIE|\
387 static inline struct lustre_handle *obdo_handle(struct obdo *oa)
389 return (struct lustre_handle *)oa->o_inline;
392 static inline struct llog_cookie *obdo_logcookie(struct obdo *oa)
394 return (struct llog_cookie *)(oa->o_inline +
395 sizeof(struct lustre_handle));
397 /* don't forget obdo_fid which is way down at the bottom so it can
398 * come after the definition of llog_cookie */
414 extern void lustre_swab_obd_statfs (struct obd_statfs *os);
416 /* ost_body.data values for OST_BRW */
418 #define OBD_BRW_READ 0x01
419 #define OBD_BRW_WRITE 0x02
420 #define OBD_BRW_RWMASK (OBD_BRW_READ | OBD_BRW_WRITE)
421 #define OBD_BRW_SYNC 0x08
422 #define OBD_BRW_CHECK 0x10
423 #define OBD_BRW_FROM_GRANT 0x20 /* the osc manages this under llite */
424 #define OBD_BRW_GRANTED 0x40 /* the ost manages this */
426 #define OBD_OBJECT_EOF 0xffffffffffffffffULL
435 extern void lustre_swab_obd_ioobj (struct obd_ioobj *ioo);
437 /* multiple of 8 bytes => can array */
438 struct niobuf_remote {
444 extern void lustre_swab_niobuf_remote (struct niobuf_remote *nbr);
446 /* request structure for OST's */
448 #define OST_REQ_HAS_OA1 0x1
454 extern void lustre_swab_ost_body (struct ost_body *b);
455 extern void lustre_swab_ost_last_id(obd_id *id);
457 /* lock value block communicated between the filter and llite */
467 extern void lustre_swab_ost_lvb(struct ost_lvb *);
473 /* offsets in the request */
474 #define MDS_REQ_SECDESC_OFF 0
475 #define MDS_REQ_REC_OFF 1
477 #define MDS_REQ_INTENT_LOCKREQ_OFF 1
478 #define MDS_REQ_INTENT_IT_OFF 2
479 #define MDS_REQ_INTENT_REC_OFF 3
481 /* maximum supplementary groups */
482 #define LUSTRE_MAX_GROUPS 128
485 * security descriptor in mds request
487 * note gid & cap might need be removed later:
488 * - cap should be obtained on mds
489 * - gid is actually not used.
491 struct mds_req_sec_desc {
501 struct ptlrpc_request;
502 struct mds_req_sec_desc *lustre_swab_mds_secdesc(struct ptlrpc_request *req,
508 MDS_GETATTR_NAME = 34,
519 MDS_DONE_WRITING = 45,
523 #define MDS_FIRST_OPC MDS_GETATTR
529 #define REINT_SETATTR 1
530 #define REINT_CREATE 2
532 #define REINT_UNLINK 4
533 #define REINT_RENAME 5
535 #define REINT_CLOSE 7
536 #define REINT_WRITE 8
539 /* the disposition of the intent outlines what was executed */
540 #define DISP_IT_EXECD 1
541 #define DISP_LOOKUP_EXECD (1 << 1)
542 #define DISP_LOOKUP_NEG (1 << 2)
543 #define DISP_LOOKUP_POS (1 << 3)
544 #define DISP_OPEN_CREATE (1 << 4)
545 #define DISP_OPEN_OPEN (1 << 5)
546 #define DISP_ENQ_COMPLETE (1<<6)
548 /* INODE LOCK PARTS */
549 #define MDS_INODELOCK_LOOKUP 0x000001 /* dentry, mode, owner, group */
550 #define MDS_INODELOCK_UPDATE 0x000002 /* size, links, timestamps */
551 //#define MDS_INODELOCK_MAXSHIFT 1
552 //#define MDS_INODELOCK_FULL ((1<<(MDS_INODELOCK_MAXSHIFT+1))-1)
565 struct ll_fid mea_fids[0];
568 #define MEA_MAGIC_LAST_CHAR 0xb2221ca1
569 #define MEA_MAGIC_ALL_CHARS 0xb222a11c
575 struct ll_fid mea_fids[0];
578 extern void lustre_swab_ll_fid (struct ll_fid *fid);
580 #define MDS_STATUS_CONN 1
581 #define MDS_STATUS_LOV 2
583 struct mds_status_req {
588 extern void lustre_swab_mds_status_req (struct mds_status_req *r);
590 #define MDS_BFLAG_UNCOMMITTED_WRITES 0x1
595 struct lustre_handle handle;
596 __u64 size; /* Offset, in the case of MDS_READPAGE */
597 __u64 blocks; /* XID, in the case of MDS_READPAGE */
599 __u32 ino; /* make this a __u64 */
607 __u32 flags; /* from vfs for pin/unpin, MDS_BFLAG for close */
609 __u32 nlink; /* #bytes to read in the case of MDS_READPAGE */
615 extern void lustre_swab_mds_body (struct mds_body *b);
618 struct mds_body *body;
619 struct lov_stripe_md *lsm;
630 struct mea *mea1; /* mea of inode1 */
631 struct mea *mea2; /* mea of inode2 */
634 #define MDS_MODE_DONT_LOCK (1 << 30)
635 #define MDS_MODE_REPLAY (1 << 31)
637 struct mds_rec_setattr {
640 struct ll_fid sa_fid;
651 /* Remove this once we declare it in include/linux/fs.h (v21 kernel patch?) */
652 #ifndef ATTR_CTIME_SET
653 #define ATTR_CTIME_SET 0x2000
656 extern void lustre_swab_mds_rec_setattr (struct mds_rec_setattr *sa);
659 #define FMODE_READ 00000001
660 #define FMODE_WRITE 00000002
663 #define FMODE_EXEC 00000004
665 #define MDS_OPEN_CREAT 00000100
666 #define MDS_OPEN_EXCL 00000200
667 #define MDS_OPEN_TRUNC 00001000
668 #define MDS_OPEN_APPEND 00002000
669 #define MDS_OPEN_SYNC 00010000
670 #define MDS_OPEN_DIRECTORY 00200000
672 #define MDS_OPEN_DELAY_CREATE 0100000000 /* delay initial object create */
673 #define MDS_OPEN_HAS_EA 010000000000 /* specify object create pattern */
674 #define MDS_OPEN_HAS_OBJS 020000000000 /* Just set the EA the obj exist */
676 struct mds_rec_create {
678 __u32 cr_flags; /* for use with open */
681 struct ll_fid cr_fid;
682 struct ll_fid cr_replayfid;
687 extern void lustre_swab_mds_rec_create (struct mds_rec_create *cr);
689 struct mds_rec_link {
692 struct ll_fid lk_fid1;
693 struct ll_fid lk_fid2;
697 extern void lustre_swab_mds_rec_link (struct mds_rec_link *lk);
699 struct mds_rec_unlink {
702 struct ll_fid ul_fid1;
703 struct ll_fid ul_fid2;
707 extern void lustre_swab_mds_rec_unlink (struct mds_rec_unlink *ul);
709 struct mds_rec_rename {
712 struct ll_fid rn_fid1;
713 struct ll_fid rn_fid2;
717 extern void lustre_swab_mds_rec_rename (struct mds_rec_rename *rn);
720 * LOV data structures
723 #define LOV_MAX_UUID_BUFFER_SIZE 8192
724 /* The size of the buffer the lov/mdc reserves for the
725 * array of UUIDs returned by the MDS. With the current
726 * protocol, this will limit the max number of OSTs per LOV */
729 __u32 ld_tgt_count; /* how many OBD's */
730 __u32 ld_active_tgt_count; /* how many active */
731 __u32 ld_default_stripe_count; /* how many objects are used */
732 __u32 ld_pattern; /* PATTERN_RAID0, PATTERN_RAID1 */
733 __u64 ld_default_stripe_size; /* in bytes */
734 __u64 ld_default_stripe_offset; /* in bytes */
735 struct obd_uuid ld_uuid;
739 __u32 ld_tgt_count; /* how many MDS's */
740 __u32 ld_active_tgt_count; /* how many active */
741 struct obd_uuid ld_uuid;
744 extern void lustre_swab_lov_desc (struct lov_desc *ld);
749 /* opcodes -- MUST be distinct from OST/MDS opcodes */
754 LDLM_BL_CALLBACK = 104,
755 LDLM_CP_CALLBACK = 105,
756 LDLM_GL_CALLBACK = 106,
759 #define LDLM_FIRST_OPC LDLM_ENQUEUE
761 #define RES_NAME_SIZE 4
763 __u64 name[RES_NAME_SIZE];
766 extern void lustre_swab_ldlm_res_id (struct ldlm_res_id *id);
784 struct ldlm_inodebits {
793 __u64 blocking_export;
796 /* it's important that the fields of the ldlm_extent structure match
797 * the first fields of the ldlm_flock structure because there is only
798 * one ldlm_swab routine to process the ldlm_policy_data_t union. if
799 * this ever changes we will need to swab the union differently based
800 * on the resource type. */
803 struct ldlm_extent l_extent;
804 struct ldlm_flock l_flock;
805 struct ldlm_inodebits l_inodebits;
806 } ldlm_policy_data_t;
808 extern void lustre_swab_ldlm_policy_data (ldlm_policy_data_t *d);
814 extern void lustre_swab_ldlm_intent (struct ldlm_intent *i);
816 struct ldlm_resource_desc {
819 struct ldlm_res_id lr_name;
822 extern void lustre_swab_ldlm_resource_desc (struct ldlm_resource_desc *r);
824 struct ldlm_lock_desc {
825 struct ldlm_resource_desc l_resource;
826 ldlm_mode_t l_req_mode;
827 ldlm_mode_t l_granted_mode;
828 ldlm_policy_data_t l_policy_data;
831 extern void lustre_swab_ldlm_lock_desc (struct ldlm_lock_desc *l);
833 struct ldlm_request {
836 struct ldlm_lock_desc lock_desc;
837 struct lustre_handle lock_handle1;
838 struct lustre_handle lock_handle2;
841 extern void lustre_swab_ldlm_request (struct ldlm_request *rq);
846 struct ldlm_lock_desc lock_desc;
847 struct lustre_handle lock_handle;
848 __u64 lock_policy_res1;
849 __u64 lock_policy_res2;
852 extern void lustre_swab_ldlm_reply (struct ldlm_reply *r);
855 * ptlbd, portal block device requests
863 PTLBD_DISCONNECT = 205,
866 #define PTLBD_FIRST_OPC PTLBD_QUERY
876 extern void lustre_swab_ptlbd_op (struct ptlbd_op *op);
885 extern void lustre_swab_ptlbd_niob (struct ptlbd_niob *n);
892 extern void lustre_swab_ptlbd_rsp (struct ptlbd_rsp *r);
894 #define CLONE_INFO_MAGIC 0x0218
895 struct clonefs_info {
900 extern void lustre_swab_clonefs_info(struct clonefs_info *clone);
902 * Opcodes for management/monitoring node.
907 MGMT_EXCEPTION, /* node died, etc. */
910 #define MGMT_FIRST_OPC MGMT_CONNECT
913 * Opcodes for multiple servers.
921 #define OBD_FIRST_OPC OBD_PING
923 /* catalog of log objects */
925 /* Identifier for a single log object */
930 } __attribute__((packed));
932 /* Records written to the CATALOGS list */
933 #define CATLIST "CATALOGS"
935 struct llog_logid lci_logid;
936 __u32 lci_padding[3];
937 } __attribute__((packed));
939 /* Log data record types - there is no specific reason that these need to
940 * be related to the RPC opcodes, but no reason not to (may be handy later?)
943 OST_SZ_REC = 0x10600000 | (OST_SAN_WRITE << 8),
944 OST_RAID1_REC = 0x10600000 | ((OST_SAN_WRITE + 1) << 8),
945 MDS_UNLINK_REC = 0x10610000 | (MDS_REINT << 8) | REINT_UNLINK,
946 OBD_CFG_REC = 0x10620000,
947 PTL_CFG_REC = 0x10630000,
948 LLOG_GEN_REC = 0x10640000,
949 LLOG_HDR_MAGIC = 0x10645539,
950 LLOG_LOGID_MAGIC = 0x1064553b,
951 SMFS_UPDATE_REC = 0x10650000,
952 CACHE_LRU_REC = 0x10660000,
955 /* Log record header - stored in little endian order.
956 * Each record must start with this struct, end with a llog_rec_tail,
957 * and be a multiple of 256 bits in size.
959 struct llog_rec_hdr {
966 struct llog_rec_tail {
971 struct llog_logid_rec {
972 struct llog_rec_hdr lid_hdr;
973 struct llog_logid lid_id;
975 struct llog_rec_tail lid_tail;
976 } __attribute__((packed));
978 struct llog_create_rec {
979 struct llog_rec_hdr lcr_hdr;
980 struct ll_fid lcr_fid;
984 struct llog_rec_tail lcr_tail;
985 } __attribute__((packed));
987 struct llog_orphan_rec {
988 struct llog_rec_hdr lor_hdr;
992 struct llog_rec_tail lor_tail;
993 } __attribute__((packed));
995 struct llog_unlink_rec {
996 struct llog_rec_hdr lur_hdr;
1000 struct llog_rec_tail lur_tail;
1001 } __attribute__((packed));
1003 struct llog_size_change_rec {
1004 struct llog_rec_hdr lsc_hdr;
1005 struct ll_fid lsc_fid;
1008 struct llog_rec_tail lsc_tail;
1009 } __attribute__((packed));
1016 struct llog_gen_rec {
1017 struct llog_rec_hdr lgr_hdr;
1018 struct llog_gen lgr_gen;
1019 struct llog_rec_tail lgr_tail;
1020 } __attribute__((packed));
1022 struct llog_lru_rec {
1023 struct llog_rec_hdr llr_hdr;
1024 struct ll_fid llr_cfid;
1025 struct ll_fid llr_pfid;
1026 struct llog_rec_tail llr_tail;
1027 } __attribute__((packed));
1029 /* On-disk header structure of each log object, stored in little endian order */
1030 #define LLOG_CHUNK_SIZE 8192
1031 #define LLOG_HEADER_SIZE (96)
1032 #define LLOG_BITMAP_BYTES (LLOG_CHUNK_SIZE - LLOG_HEADER_SIZE)
1034 #define LLOG_MIN_REC_SIZE (24) /* round(llog_rec_hdr + llog_rec_tail) */
1036 /* flags for the logs */
1037 #define LLOG_F_ZAP_WHEN_EMPTY 0x1
1038 #define LLOG_F_IS_CAT 0x2
1039 #define LLOG_F_IS_PLAIN 0x4
1041 struct llog_log_hdr {
1042 struct llog_rec_hdr llh_hdr;
1043 __u64 llh_timestamp;
1045 __u32 llh_bitmap_offset;
1049 /* for a catalog the first plain slot is next to it */
1050 struct obd_uuid llh_tgtuuid;
1051 __u32 llh_reserved[LLOG_HEADER_SIZE/sizeof(__u32) - 23];
1052 __u32 llh_bitmap[LLOG_BITMAP_BYTES/sizeof(__u32)];
1053 struct llog_rec_tail llh_tail;
1054 } __attribute__((packed));
1056 #define LLOG_BITMAP_SIZE(llh) ((llh->llh_hdr.lrh_len - \
1057 llh->llh_bitmap_offset - \
1058 sizeof(llh->llh_tail)) * 8)
1060 /* log cookies are used to reference a specific log file and a record therein */
1061 struct llog_cookie {
1062 struct llog_logid lgc_lgl;
1066 } __attribute__((packed));
1069 enum llogd_rpc_ops {
1070 LLOG_ORIGIN_HANDLE_OPEN = 501,
1071 LLOG_ORIGIN_HANDLE_NEXT_BLOCK = 502,
1072 LLOG_ORIGIN_HANDLE_READ_HEADER = 503,
1073 LLOG_ORIGIN_HANDLE_WRITE_REC = 504,
1074 LLOG_ORIGIN_HANDLE_CLOSE = 505,
1075 LLOG_ORIGIN_CONNECT = 506,
1076 LLOG_CATINFO = 507, /* for lfs catinfo */
1077 LLOG_ORIGIN_HANDLE_PREV_BLOCK = 508,
1081 struct llog_logid lgd_logid;
1083 __u32 lgd_llh_flags;
1085 __u32 lgd_saved_index;
1087 __u64 lgd_cur_offset;
1088 } __attribute__((packed));
1090 struct llogd_conn_body {
1091 struct llog_gen lgdc_gen;
1092 struct llog_logid lgdc_logid;
1093 __u32 lgdc_ctxt_idx;
1094 } __attribute__((packed));
1096 extern void lustre_swab_llogd_body (struct llogd_body *d);
1097 extern void lustre_swab_llog_hdr (struct llog_log_hdr *h);
1098 extern void lustre_swab_llogd_conn_body (struct llogd_conn_body *d);
1100 static inline struct ll_fid *obdo_fid(struct obdo *oa)
1102 return (struct ll_fid *)(oa->o_inline + sizeof(struct lustre_handle) +
1103 sizeof(struct llog_cookie));