1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
33 * Copyright (c) 2011 Whamcloud, Inc.
36 * This file is part of Lustre, http://www.lustre.org/
37 * Lustre is a trademark of Sun Microsystems, Inc.
39 * lustre/include/lustre/lustre_user.h
41 * Lustre public user-space interface definitions.
44 #ifndef _LUSTRE_USER_H
45 #define _LUSTRE_USER_H
47 /** \defgroup lustreuser lustreuser
53 #include <libcfs/posix/posix-types.h>
55 #include <lustre/ll_fiemap.h>
56 #if defined(__linux__)
57 #include <linux/lustre_user.h>
58 #elif defined(__APPLE__)
59 #include <darwin/lustre_user.h>
60 #elif defined(__WINNT__)
61 #include <winnt/lustre_user.h>
63 #error Unsupported operating system.
67 #define LL_SUPER_MAGIC 0x0BD00BD0
69 #ifndef FSFILT_IOC_GETFLAGS
70 #define FSFILT_IOC_GETFLAGS _IOR('f', 1, long)
71 #define FSFILT_IOC_SETFLAGS _IOW('f', 2, long)
72 #define FSFILT_IOC_GETVERSION _IOR('f', 3, long)
73 #define FSFILT_IOC_SETVERSION _IOW('f', 4, long)
74 #define FSFILT_IOC_GETVERSION_OLD _IOR('v', 1, long)
75 #define FSFILT_IOC_SETVERSION_OLD _IOW('v', 2, long)
76 #define FSFILT_IOC_FIEMAP _IOWR('f', 11, struct ll_user_fiemap)
79 /* FIEMAP flags supported by Lustre */
80 #define LUSTRE_FIEMAP_FLAGS_COMPAT (FIEMAP_FLAG_SYNC | FIEMAP_FLAG_DEVICE_ORDER)
82 enum obd_statfs_state {
83 OS_STATE_DEGRADED = 0x00000001, /**< RAID degraded/rebuilding */
84 OS_STATE_READONLY = 0x00000002, /**< filesystem is read-only */
85 OS_STATE_RDONLY_1 = 0x00000004, /**< obsolete 1.6, was EROFS=30 */
86 OS_STATE_RDONLY_2 = 0x00000008, /**< obsolete 1.6, was EROFS=30 */
87 OS_STATE_RDONLY_3 = 0x00000010, /**< obsolete 1.6, was EROFS=30 */
101 __u32 os_state; /**< obd_statfs_state OS_STATE_* flag */
115 * The ioctl naming rules:
116 * LL_* - works on the currently opened filehandle instead of parent dir
117 * *_OBD_* - gets data for both OSC or MDC (LOV, LMV indirectly)
118 * *_MDC_* - gets/sets data related to MDC
119 * *_LOV_* - gets/sets data related to OSC/LOV
120 * *FILE* - called on parent dir and passes in a filename
121 * *STRIPE* - set/get lov_user_md
122 * *INFO - set/get lov_user_mds_data
124 /* see <lustre_lib.h> for ioctl numberss 101-150 */
125 #define LL_IOC_GETFLAGS _IOR ('f', 151, long)
126 #define LL_IOC_SETFLAGS _IOW ('f', 152, long)
127 #define LL_IOC_CLRFLAGS _IOW ('f', 153, long)
128 /* LL_IOC_LOV_SETSTRIPE: See also OBD_IOC_LOV_SETSTRIPE */
129 #define LL_IOC_LOV_SETSTRIPE _IOW ('f', 154, long)
130 /* LL_IOC_LOV_GETSTRIPE: See also OBD_IOC_LOV_GETSTRIPE */
131 #define LL_IOC_LOV_GETSTRIPE _IOW ('f', 155, long)
132 /* LL_IOC_LOV_SETEA: See also OBD_IOC_LOV_SETEA */
133 #define LL_IOC_LOV_SETEA _IOW ('f', 156, long)
134 #define LL_IOC_RECREATE_OBJ _IOW ('f', 157, long)
135 #define LL_IOC_RECREATE_FID _IOW ('f', 157, struct lu_fid)
136 #define LL_IOC_GROUP_LOCK _IOW ('f', 158, long)
137 #define LL_IOC_GROUP_UNLOCK _IOW ('f', 159, long)
138 /* LL_IOC_QUOTACHECK: See also OBD_IOC_QUOTACHECK */
139 #define LL_IOC_QUOTACHECK _IOW ('f', 160, int)
140 /* LL_IOC_POLL_QUOTACHECK: See also OBD_IOC_POLL_QUOTACHECK */
141 #define LL_IOC_POLL_QUOTACHECK _IOR ('f', 161, struct if_quotacheck *)
142 /* LL_IOC_QUOTACTL: See also OBD_IOC_QUOTACTL */
143 #define LL_IOC_QUOTACTL _IOWR('f', 162, struct if_quotactl)
144 #define IOC_OBD_STATFS _IOWR('f', 164, struct obd_statfs *)
145 #define IOC_LOV_GETINFO _IOWR('f', 165, struct lov_user_mds_data *)
146 #define LL_IOC_FLUSHCTX _IOW ('f', 166, long)
147 #define LL_IOC_RMTACL _IOW ('f', 167, long)
148 #define LL_IOC_GETOBDCOUNT _IOR ('f', 168, long)
149 #define LL_IOC_LLOOP_ATTACH _IOWR('f', 169, long)
150 #define LL_IOC_LLOOP_DETACH _IOWR('f', 170, long)
151 #define LL_IOC_LLOOP_INFO _IOWR('f', 171, struct lu_fid)
152 #define LL_IOC_LLOOP_DETACH_BYDEV _IOWR('f', 172, long)
153 #define LL_IOC_PATH2FID _IOR ('f', 173, long)
154 #define LL_IOC_GET_CONNECT_FLAGS _IOWR('f', 174, __u64 *)
155 #define LL_IOC_GET_MDTIDX _IOR ('f', 175, int)
156 #define LL_IOC_HSM_CT_START _IOW ('f', 176,struct lustre_kernelcomm)
157 /* see <lustre_lib.h> for ioctl numbers 177-210 */
160 #define LL_STATFS_MDC 1
161 #define LL_STATFS_LOV 2
163 #define IOC_MDC_TYPE 'i'
164 #define IOC_MDC_LOOKUP _IOWR(IOC_MDC_TYPE, 20, struct obd_device *)
165 #define IOC_MDC_GETFILESTRIPE _IOWR(IOC_MDC_TYPE, 21, struct lov_user_md *)
166 #define IOC_MDC_GETFILEINFO _IOWR(IOC_MDC_TYPE, 22, struct lov_user_mds_data *)
167 #define LL_IOC_MDC_GETINFO _IOWR(IOC_MDC_TYPE, 23, struct lov_user_mds_data *)
169 /* Keep these for backward compartability. */
170 #define LL_IOC_OBD_STATFS IOC_OBD_STATFS
171 #define IOC_MDC_GETSTRIPE IOC_MDC_GETFILESTRIPE
173 #define O_LOV_DELAY_CREATE 0100000000 /* hopefully this does not conflict */
175 #define LL_FILE_IGNORE_LOCK 0x00000001
176 #define LL_FILE_GROUP_LOCKED 0x00000002
177 #define LL_FILE_READAHEA 0x00000004
178 #define LL_FILE_LOCKED_DIRECTIO 0x00000008 /* client-side locks with dio */
179 #define LL_FILE_LOCKLESS_IO 0x00000010 /* server-side locks with cio */
180 #define LL_FILE_RMTACL 0x00000020
182 #define LOV_USER_MAGIC_V1 0x0BD10BD0
183 #define LOV_USER_MAGIC LOV_USER_MAGIC_V1
184 #define LOV_USER_MAGIC_JOIN_V1 0x0BD20BD0
185 #define LOV_USER_MAGIC_V3 0x0BD30BD0
187 #define LOV_PATTERN_RAID0 0x001
188 #define LOV_PATTERN_RAID1 0x002
189 #define LOV_PATTERN_FIRST 0x100
191 #define LOV_MAXPOOLNAME 16
192 #define LOV_POOLNAMEF "%.16s"
194 #define lov_user_ost_data lov_user_ost_data_v1
195 struct lov_user_ost_data_v1 { /* per-stripe data structure */
196 __u64 l_object_id; /* OST object ID */
197 __u64 l_object_seq; /* OST object seq number */
198 __u32 l_ost_gen; /* generation of this OST index */
199 __u32 l_ost_idx; /* OST index in LOV */
200 } __attribute__((packed));
202 #define lov_user_md lov_user_md_v1
203 struct lov_user_md_v1 { /* LOV EA user data (host-endian) */
204 __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V1 */
205 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
206 __u64 lmm_object_id; /* LOV object ID */
207 __u64 lmm_object_seq; /* LOV object seq */
208 __u32 lmm_stripe_size; /* size of stripe in bytes */
209 __u16 lmm_stripe_count; /* num stripes in use for this object */
210 __u16 lmm_stripe_offset; /* starting stripe offset in lmm_objects */
211 struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
212 } __attribute__((packed, __may_alias__));
214 struct lov_user_md_v3 { /* LOV EA user data (host-endian) */
215 __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V3 */
216 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
217 __u64 lmm_object_id; /* LOV object ID */
218 __u64 lmm_object_seq; /* LOV object seq */
219 __u32 lmm_stripe_size; /* size of stripe in bytes */
220 __u16 lmm_stripe_count; /* num stripes in use for this object */
221 __u16 lmm_stripe_offset; /* starting stripe offset in lmm_objects */
222 char lmm_pool_name[LOV_MAXPOOLNAME]; /* pool name */
223 struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
224 } __attribute__((packed));
226 /* Compile with -D_LARGEFILE64_SOURCE or -D_GNU_SOURCE (or #define) to
227 * use this. It is unsafe to #define those values in this header as it
228 * is possible the application has already #included <sys/stat.h>. */
229 #ifdef HAVE_LOV_USER_MDS_DATA
230 #define lov_user_mds_data lov_user_mds_data_v1
231 struct lov_user_mds_data_v1 {
232 lstat_t lmd_st; /* MDS stat struct */
233 struct lov_user_md_v1 lmd_lmm; /* LOV EA V1 user data */
234 } __attribute__((packed));
236 struct lov_user_mds_data_v3 {
237 lstat_t lmd_st; /* MDS stat struct */
238 struct lov_user_md_v3 lmd_lmm; /* LOV EA V3 user data */
239 } __attribute__((packed));
242 struct ll_recreate_obj {
248 __u64 id; /* holds object id */
249 __u32 generation; /* holds object generation */
250 __u32 f_type; /* holds object type or stripe idx when passing it to
251 * OST for saving into EA. */
259 static inline int obd_uuid_equals(const struct obd_uuid *u1,
260 const struct obd_uuid *u2)
262 return strcmp((char *)u1->uuid, (char *)u2->uuid) == 0;
265 static inline int obd_uuid_empty(struct obd_uuid *uuid)
267 return uuid->uuid[0] == '\0';
270 static inline void obd_str2uuid(struct obd_uuid *uuid, const char *tmp)
272 strncpy((char *)uuid->uuid, tmp, sizeof(*uuid));
273 uuid->uuid[sizeof(*uuid) - 1] = '\0';
276 /* For printf's only, make sure uuid is terminated */
277 static inline char *obd_uuid2str(struct obd_uuid *uuid)
279 if (uuid->uuid[sizeof(*uuid) - 1] != '\0') {
280 /* Obviously not safe, but for printfs, no real harm done...
281 we're always null-terminated, even in a race. */
282 static char temp[sizeof(*uuid)];
283 memcpy(temp, uuid->uuid, sizeof(*uuid) - 1);
284 temp[sizeof(*uuid) - 1] = '\0';
287 return (char *)(uuid->uuid);
290 /* Extract fsname from uuid (or target name) of a target
291 e.g. (myfs-OST0007_UUID -> myfs)
292 see also deuuidify. */
293 static inline void obd_uuid2fsname(char *buf, char *uuid, int buflen)
297 strncpy(buf, uuid, buflen - 1);
298 buf[buflen - 1] = '\0';
299 p = strrchr(buf, '-');
307 * FID is a cluster-wide unique identifier of a file or an object (stripe).
308 * FIDs are never reused.
312 * FID sequence. Sequence is a unit of migration: all files (objects)
313 * with FIDs from a given sequence are stored on the same server.
314 * Lustre should support 2^64 objects, so even if each sequence
315 * has only a single object we can still enumerate 2^64 objects.
318 /** FID number within sequence. */
321 * FID version, used to distinguish different versions (in the sense
322 * of snapshots, etc.) of the same file system object. Not currently
329 struct lu_fid ff_parent; /* ff_parent.f_ver == file stripe number */
334 /* Userspace should treat lu_fid as opaque, and only use the following methods
335 to print or parse them. Other functions (e.g. compare, swab) could be moved
336 here from lustre_idl.h if needed. */
337 typedef struct lu_fid lustre_fid;
339 /* printf display format
340 e.g. printf("file FID is "DFID"\n", PFID(fid)); */
341 #define DFID_NOBRACE LPX64":0x%x:0x%x"
342 #define DFID "["DFID_NOBRACE"]"
348 /* scanf input parse format -- strip '[' first.
349 e.g. sscanf(fidstr, SFID, RFID(&fid)); */
350 /* #define SFID "0x"LPX64i":0x"LPSZX":0x"LPSZX""
351 liblustreapi.c:2893: warning: format '%lx' expects type 'long unsigned int *', but argument 4 has type 'unsigned int *'
352 liblustreapi.c:2893: warning: format '%lx' expects type 'long unsigned int *', but argument 5 has type 'unsigned int *'
354 #define SFID "0x"LPX64i":0x%x:0x%x"
361 /********* Quotas **********/
363 /* these must be explicitly translated into linux Q_* in ll_dir_ioctl */
364 #define LUSTRE_Q_QUOTAON 0x800002 /* turn quotas on */
365 #define LUSTRE_Q_QUOTAOFF 0x800003 /* turn quotas off */
366 #define LUSTRE_Q_GETINFO 0x800005 /* get information about quota files */
367 #define LUSTRE_Q_SETINFO 0x800006 /* set information about quota files */
368 #define LUSTRE_Q_GETQUOTA 0x800007 /* get user quota structure */
369 #define LUSTRE_Q_SETQUOTA 0x800008 /* set user quota structure */
370 /* lustre-specific control commands */
371 #define LUSTRE_Q_INVALIDATE 0x80000b /* invalidate quota data */
372 #define LUSTRE_Q_FINVALIDATE 0x80000c /* invalidate filter quota data */
374 #define UGQUOTA 2 /* set both USRQUOTA and GRPQUOTA */
376 struct if_quotacheck {
378 struct obd_uuid obd_uuid;
381 #define IDENTITY_DOWNCALL_MAGIC 0x6d6dd629
384 #define N_PERMS_MAX 64
386 struct perm_downcall_data {
392 struct identity_downcall_data {
399 struct perm_downcall_data idd_perms[N_PERMS_MAX];
403 /* for non-mapped uid/gid */
404 #define NOBODY_UID 99
405 #define NOBODY_GID 99
407 #define INVALID_ID (-1)
416 #ifdef NEED_QUOTA_DEFS
418 #define QIF_BLIMITS 1
420 #define QIF_ILIMITS 4
424 #define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
425 #define QIF_USAGE (QIF_SPACE | QIF_INODES)
426 #define QIF_TIMES (QIF_BTIME | QIF_ITIME)
427 #define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
430 #endif /* !__KERNEL__ */
432 typedef enum lustre_quota_version {
434 } lustre_quota_version_t;
436 /* XXX: same as if_dqinfo struct in kernel */
444 /* XXX: same as if_dqblk struct in kernel, plus one padding */
446 __u64 dqb_bhardlimit;
447 __u64 dqb_bsoftlimit;
449 __u64 dqb_ihardlimit;
450 __u64 dqb_isoftlimit;
472 struct obd_dqinfo qc_dqinfo;
473 struct obd_dqblk qc_dqblk;
475 struct obd_uuid obd_uuid;
479 /********* Changelogs **********/
480 /** Changelog record types */
481 enum changelog_rec_type {
483 CL_CREATE = 1, /* namespace */
484 CL_MKDIR = 2, /* namespace */
485 CL_HARDLINK = 3, /* namespace */
486 CL_SOFTLINK = 4, /* namespace */
487 CL_MKNOD = 5, /* namespace */
488 CL_UNLINK = 6, /* namespace */
489 CL_RMDIR = 7, /* namespace */
490 CL_RENAME = 8, /* namespace */
491 CL_EXT = 9, /* namespace extended record (2nd half of rename) */
492 CL_OPEN = 10, /* not currently used */
493 CL_CLOSE = 11, /* may be written to log only with mtime change */
498 CL_HSM = 16, /* HSM specific events, see flags */
499 CL_MTIME = 17, /* Precedence: setattr > mtime > ctime > atime */
505 static inline const char *changelog_type2str(int type) {
506 static const char *changelog_str[] = {
507 "MARK", "CREAT", "MKDIR", "HLINK", "SLINK", "MKNOD", "UNLNK",
508 "RMDIR", "RNMFM", "RNMTO", "OPEN", "CLOSE", "IOCTL", "TRUNC",
509 "SATTR", "XATTR", "HSM", "MTIME", "CTIME", "ATIME" };
510 if (type >= 0 && type < CL_LAST)
511 return changelog_str[type];
515 /* per-record flags */
516 #define CLF_VERSION 0x1000
517 #define CLF_FLAGMASK 0x0FFF
518 /* Anything under the flagmask may be per-type (if desired) */
519 /* Flags for unlink */
520 #define CLF_UNLINK_LAST 0x0001 /* Unlink of last hardlink */
521 #define CLF_UNLINK_HSM_EXISTS 0x0002 /* File has something in HSM */
522 /* HSM cleaning needed */
524 /* 12b used (from high weight to low weight):
529 #define CLF_HSM_ERR_L 0 /* HSM return code, 7 bits */
530 #define CLF_HSM_ERR_H 6
531 #define CLF_HSM_EVENT_L 7 /* HSM event, 3 bits, see enum hsm_event */
532 #define CLF_HSM_EVENT_H 9
533 #define CLF_HSM_FLAG_L 10 /* HSM flags, 2 bits, 1 used, 1 spare */
534 #define CLF_HSM_FLAG_H 11
535 #define CLF_HSM_SPARE_L 12 /* 4 spare bits */
536 #define CLF_HSM_SPARE_H 15
537 #define CLF_HSM_LAST 15
539 #define CLF_GET_BITS(_b, _h, _l) \
540 _b &= (0xFFFF << (CLF_HSM_LAST - _h)); \
541 _b = _b >> (_l + CLF_HSM_LAST - _h)
543 #define CLF_HSM_SUCCESS 0x00
544 #define CLF_HSM_MAXERROR 0x7E
545 #define CLF_HSM_ERROVERFLOW 0x7F
547 #define CLF_HSM_DIRTY 1 /* file is dirty after HSM request end */
549 /* 3 bits field => 8 values allowed */
561 static inline enum hsm_event hsm_get_cl_event(__u16 flags)
565 CLF_GET_BITS(flags, CLF_HSM_EVENT_H, CLF_HSM_EVENT_L);
570 static inline void hsm_set_cl_event(int *flags, enum hsm_event he)
572 *flags |= (he << CLF_HSM_EVENT_L);
575 static inline __u16 hsm_get_cl_flags(int flags)
577 CLF_GET_BITS(flags, CLF_HSM_FLAG_H, CLF_HSM_FLAG_L);
581 static inline void hsm_set_cl_flags(int *flags, int bits)
583 *flags |= (bits << CLF_HSM_FLAG_L);
586 static inline int hsm_get_cl_error(int flags)
588 CLF_GET_BITS(flags, CLF_HSM_ERR_H, CLF_HSM_ERR_L);
592 static inline void hsm_set_cl_error(int *flags, int error)
594 *flags |= (error << CLF_HSM_ERR_L);
597 #define CR_MAXSIZE (PATH_MAX + sizeof(struct changelog_rec))
598 struct changelog_rec {
600 __u16 cr_flags; /**< (flags&CLF_FLAGMASK)|CLF_VERSION */
601 __u32 cr_type; /**< \a changelog_rec_type */
602 __u64 cr_index; /**< changelog record number */
603 __u64 cr_prev; /**< last index for this target fid */
606 lustre_fid cr_tfid; /**< target fid */
607 __u32 cr_markerflags; /**< CL_MARK flags */
609 lustre_fid cr_pfid; /**< parent fid */
610 char cr_name[0]; /**< last element */
611 } __attribute__((packed));
613 struct ioc_changelog {
620 enum changelog_message_type {
621 CL_RECORD = 10, /* message is a changelog_rec */
622 CL_EOF = 11, /* at end of current changelog */
625 /********* Misc **********/
628 # define offsetof(typ,memb) ((unsigned long)((char *)&(((typ *)0)->memb)))
631 #define dot_lustre_name ".lustre"
634 /********* HSM **********/
636 /** HSM per-file state
637 * See HSM_FLAGS below.
640 HS_EXISTS = 0x00000001,
641 HS_DIRTY = 0x00000002,
642 HS_RELEASED = 0x00000004,
643 HS_ARCHIVED = 0x00000008,
644 HS_NORELEASE = 0x00000010,
645 HS_NOARCHIVE = 0x00000020,
646 HS_LOST = 0x00000040,
649 /* HSM user-setable flags. */
650 #define HSM_USER_MASK (HS_NORELEASE | HS_NOARCHIVE | HS_DIRTY)
652 /* Other HSM flags. */
653 #define HSM_STATUS_MASK (HS_EXISTS | HS_LOST | HS_RELEASED | HS_ARCHIVED)
656 * All HSM-related possible flags that could be applied to a file.
657 * This should be kept in sync with hsm_states.
659 #define HSM_FLAGS_MASK (HSM_USER_MASK | HSM_STATUS_MASK)
662 * HSMÂ request progress state
664 enum hsm_progress_states {
671 static inline char *hsm_progress_state2name(enum hsm_progress_states s)
674 case HPS_WAITING: return "waiting";
675 case HPS_RUNNING: return "running";
676 case HPS_DONE: return "done";
677 default: return "unknown";
684 } __attribute__((packed));
687 * Current HSM states of a Lustre file.
689 * This structure purpose is to be sent to user-space mainly. It describes the
690 * current HSM flags and in-progress action.
692 struct hsm_user_state {
693 /** Current HSM states, from enum hsm_states. */
695 __u32 hus_archive_num;
696 /** The current undergoing action, if there is one */
697 __u32 hus_in_progress_state;
698 __u32 hus_in_progress_action;
699 struct hsm_extent hus_in_progress_location;
700 char hus_extended_info[];
703 struct hsm_state_set_ioc {
704 struct lu_fid hssi_fid;
706 __u64 hssi_clearmask;
709 /***** HSM user requests ******/
710 /* User-generated (lfs/ioctl) request types */
711 enum hsm_user_action {
712 HUA_NONE = 1, /* no action (noop) */
713 HUA_ARCHIVE = 10, /* copy to hsm */
714 HUA_RESTORE = 11, /* prestage */
715 HUA_RELEASE = 12, /* drop ost objects */
716 HUA_REMOVE = 13, /* remove from archive */
717 HUA_CANCEL = 14 /* cancel a request */
720 static inline char *hsm_user_action2name(enum hsm_user_action a)
723 case HUA_NONE: return "NOOP";
724 case HUA_ARCHIVE: return "ARCHIVE";
725 case HUA_RESTORE: return "RESTORE";
726 case HUA_RELEASE: return "RELEASE";
727 case HUA_REMOVE: return "REMOVE";
728 case HUA_CANCEL: return "CANCEL";
729 default: return "UNKNOWN";
733 struct hsm_user_item {
735 struct hsm_extent hui_extent;
736 } __attribute__((packed));
738 struct hsm_user_request {
739 __u32 hur_action; /* enum hsm_user_action */
740 __u32 hur_archive_num; /* archive number, used only with HUA_ARCHIVE */
743 struct hsm_user_item hur_user_item[0];
744 /* extra data blob at end of struct (after all
745 * hur_user_items), only use helpers to access it
747 } __attribute__((packed));
749 /** Return pointer to data field in a hsm user request */
750 static inline void *hur_data(struct hsm_user_request *hur)
752 return &(hur->hur_user_item[hur->hur_itemcount]);
755 /** Compute the current length of the provided hsm_user_request. */
756 static inline int hur_len(struct hsm_user_request *hur)
760 data_offset = hur_data(hur) - (void *)hur;
761 return (data_offset + hur->hur_data_len);
764 /****** HSM RPCs to copytool *****/
765 /* Message types the copytool may receive */
766 enum hsm_message_type {
767 HMT_ACTION_LIST = 100, /* message is a hsm_action_list */
770 /* Actions the copytool may be instructed to take for a given action_item */
771 enum hsm_copytool_action {
772 HSMA_NONE = 10, /* no action */
773 HSMA_ARCHIVE = 20, /* arbitrary offset */
779 static inline char *hsm_copytool_action2name(enum hsm_copytool_action a)
782 case HSMA_NONE: return "NOOP";
783 case HSMA_ARCHIVE: return "ARCHIVE";
784 case HSMA_RESTORE: return "RESTORE";
785 case HSMA_REMOVE: return "REMOVE";
786 case HSMA_CANCEL: return "CANCEL";
787 default: return "UNKNOWN";
791 /* Copytool item action description */
792 struct hsm_action_item {
793 __u32 hai_len; /* valid size of this struct */
794 __u32 hai_action; /* hsm_copytool_action, but use known size */
795 lustre_fid hai_fid; /* Lustre FID to operated on */
796 struct hsm_extent hai_extent; /* byte range to operate on */
797 __u64 hai_cookie; /* action cookie from coordinator */
798 __u64 hai_gid; /* grouplock id */
799 char hai_data[0]; /* variable length */
800 } __attribute__((packed));
803 * helper function which print in hexa the first bytes of
805 * \param hai [IN] record to print
806 * \param buffer [OUT] output buffer
807 * \param len [IN] max buffer len
810 static inline char *hai_dump_data_field(struct hsm_action_item *hai,
811 char *buffer, int len)
818 data_len = hai->hai_len - sizeof(*hai);
819 for (i = 0 ; (i < data_len) && (sz > 0) ; i++)
823 cnt = snprintf(ptr, sz, "%.2X",
824 (unsigned char)hai->hai_data[i]);
832 /* Copytool action list */
833 #define HAL_VERSION 1
834 #define HAL_MAXSIZE 4096 /* bytes, used in userspace only */
835 struct hsm_action_list {
837 __u32 hal_count; /* number of hai's to follow */
838 __u64 hal_compound_id; /* returned by coordinator */
839 __u32 hal_archive_num; /* which archive backend */
841 char hal_fsname[0]; /* null-terminated */
842 /* struct hsm_action_item[hal_count] follows, aligned on 8-byte
843 boundaries. See hai_zero */
844 } __attribute__((packed));
846 #ifndef HAVE_CFS_SIZE_ROUND
847 static inline int cfs_size_round (int val)
849 return (val + 7) & (~0x7);
851 #define HAVE_CFS_SIZE_ROUND
854 /* Return pointer to first hai in action list */
855 static inline struct hsm_action_item * hai_zero(struct hsm_action_list *hal)
857 return (struct hsm_action_item *)(hal->hal_fsname +
858 cfs_size_round(strlen(hal-> \
861 /* Return pointer to next hai */
862 static inline struct hsm_action_item * hai_next(struct hsm_action_item *hai)
864 return (struct hsm_action_item *)((char *)hai +
865 cfs_size_round(hai->hai_len));
868 /* Return size of an hsm_action_list */
869 static inline int hal_size(struct hsm_action_list *hal)
872 struct hsm_action_item *hai;
874 sz = sizeof(*hal) + cfs_size_round(strlen(hal->hal_fsname));
876 for (i = 0 ; i < hal->hal_count ; i++) {
877 sz += cfs_size_round(hai->hai_len);
883 /* Copytool progress reporting */
884 #define HP_FLAG_COMPLETED 0x01
885 #define HP_FLAG_RETRY 0x02
887 struct hsm_progress {
890 struct hsm_extent hp_extent;
892 __u16 hp_errval; /* positive val */
893 } __attribute__((packed));
897 #endif /* _LUSTRE_USER_H */