4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2010, 2012, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/include/lustre/lustre_user.h
38 * Lustre public user-space interface definitions.
41 #ifndef _LUSTRE_USER_H
42 #define _LUSTRE_USER_H
44 /** \defgroup lustreuser lustreuser
50 #include <libcfs/posix/posix-types.h>
52 #include <lustre/ll_fiemap.h>
53 #if defined(__linux__)
54 #include <linux/lustre_user.h>
55 #elif defined(__APPLE__)
56 #include <darwin/lustre_user.h>
57 #elif defined(__WINNT__)
58 #include <winnt/lustre_user.h>
60 #error Unsupported operating system.
64 #define LL_SUPER_MAGIC 0x0BD00BD0
66 #ifndef FSFILT_IOC_GETFLAGS
67 #define FSFILT_IOC_GETFLAGS _IOR('f', 1, long)
68 #define FSFILT_IOC_SETFLAGS _IOW('f', 2, long)
69 #define FSFILT_IOC_GETVERSION _IOR('f', 3, long)
70 #define FSFILT_IOC_SETVERSION _IOW('f', 4, long)
71 #define FSFILT_IOC_GETVERSION_OLD _IOR('v', 1, long)
72 #define FSFILT_IOC_SETVERSION_OLD _IOW('v', 2, long)
73 #define FSFILT_IOC_FIEMAP _IOWR('f', 11, struct ll_user_fiemap)
76 /* FIEMAP flags supported by Lustre */
77 #define LUSTRE_FIEMAP_FLAGS_COMPAT (FIEMAP_FLAG_SYNC | FIEMAP_FLAG_DEVICE_ORDER)
79 enum obd_statfs_state {
80 OS_STATE_DEGRADED = 0x00000001, /**< RAID degraded/rebuilding */
81 OS_STATE_READONLY = 0x00000002, /**< filesystem is read-only */
82 OS_STATE_RDONLY_1 = 0x00000004, /**< obsolete 1.6, was EROFS=30 */
83 OS_STATE_RDONLY_2 = 0x00000008, /**< obsolete 1.6, was EROFS=30 */
84 OS_STATE_RDONLY_3 = 0x00000010, /**< obsolete 1.6, was EROFS=30 */
98 __u32 os_state; /**< obd_statfs_state OS_STATE_* flag */
99 __u32 os_fprecreated; /* objs available now to the caller */
100 /* used in QoS code to find preferred
113 * OST object IDentifier.
120 #define DOSTID LPX64":"LPU64
121 #define POSTID(oi) (oi)->oi_seq, (oi)->oi_id
126 * FID is a cluster-wide unique identifier of a file or an object (stripe).
127 * FIDs are never reused.
131 * FID sequence. Sequence is a unit of migration: all files (objects)
132 * with FIDs from a given sequence are stored on the same server.
133 * Lustre should support 2^64 objects, so even if each sequence
134 * has only a single object we can still enumerate 2^64 objects.
137 /* FID number within sequence. */
140 * FID version, used to distinguish different versions (in the sense
141 * of snapshots, etc.) of the same file system object. Not currently
148 struct lu_fid ff_parent; /* ff_parent.f_ver == file stripe number */
153 /* Userspace should treat lu_fid as opaque, and only use the following methods
154 * to print or parse them. Other functions (e.g. compare, swab) could be moved
155 * here from lustre_idl.h if needed. */
156 typedef struct lu_fid lustre_fid;
159 * The ioctl naming rules:
160 * LL_* - works on the currently opened filehandle instead of parent dir
161 * *_OBD_* - gets data for both OSC or MDC (LOV, LMV indirectly)
162 * *_MDC_* - gets/sets data related to MDC
163 * *_LOV_* - gets/sets data related to OSC/LOV
164 * *FILE* - called on parent dir and passes in a filename
165 * *STRIPE* - set/get lov_user_md
166 * *INFO - set/get lov_user_mds_data
168 /* see <lustre_lib.h> for ioctl numberss 101-150 */
169 #define LL_IOC_GETFLAGS _IOR ('f', 151, long)
170 #define LL_IOC_SETFLAGS _IOW ('f', 152, long)
171 #define LL_IOC_CLRFLAGS _IOW ('f', 153, long)
172 /* LL_IOC_LOV_SETSTRIPE: See also OBD_IOC_LOV_SETSTRIPE */
173 #define LL_IOC_LOV_SETSTRIPE _IOW ('f', 154, long)
174 /* LL_IOC_LOV_GETSTRIPE: See also OBD_IOC_LOV_GETSTRIPE */
175 #define LL_IOC_LOV_GETSTRIPE _IOW ('f', 155, long)
176 /* LL_IOC_LOV_SETEA: See also OBD_IOC_LOV_SETEA */
177 #define LL_IOC_LOV_SETEA _IOW ('f', 156, long)
178 #define LL_IOC_RECREATE_OBJ _IOW ('f', 157, long)
179 #define LL_IOC_RECREATE_FID _IOW ('f', 157, struct lu_fid)
180 #define LL_IOC_GROUP_LOCK _IOW ('f', 158, long)
181 #define LL_IOC_GROUP_UNLOCK _IOW ('f', 159, long)
182 /* LL_IOC_QUOTACHECK: See also OBD_IOC_QUOTACHECK */
183 #define LL_IOC_QUOTACHECK _IOW ('f', 160, int)
184 /* LL_IOC_POLL_QUOTACHECK: See also OBD_IOC_POLL_QUOTACHECK */
185 #define LL_IOC_POLL_QUOTACHECK _IOR ('f', 161, struct if_quotacheck *)
186 /* LL_IOC_QUOTACTL: See also OBD_IOC_QUOTACTL */
187 #define LL_IOC_QUOTACTL _IOWR('f', 162, struct if_quotactl)
188 #define IOC_OBD_STATFS _IOWR('f', 164, struct obd_statfs *)
189 #define IOC_LOV_GETINFO _IOWR('f', 165, struct lov_user_mds_data *)
190 #define LL_IOC_FLUSHCTX _IOW ('f', 166, long)
191 #define LL_IOC_RMTACL _IOW ('f', 167, long)
192 #define LL_IOC_GETOBDCOUNT _IOR ('f', 168, long)
193 #define LL_IOC_LLOOP_ATTACH _IOWR('f', 169, long)
194 #define LL_IOC_LLOOP_DETACH _IOWR('f', 170, long)
195 #define LL_IOC_LLOOP_INFO _IOWR('f', 171, struct lu_fid)
196 #define LL_IOC_LLOOP_DETACH_BYDEV _IOWR('f', 172, long)
197 #define LL_IOC_PATH2FID _IOR ('f', 173, long)
198 #define LL_IOC_GET_CONNECT_FLAGS _IOWR('f', 174, __u64 *)
199 #define LL_IOC_GET_MDTIDX _IOR ('f', 175, int)
201 /* see <lustre_lib.h> for ioctl numbers 177-210 */
203 #define LL_IOC_HSM_STATE_GET _IOR('f', 211, struct hsm_user_state)
204 #define LL_IOC_HSM_STATE_SET _IOW('f', 212, struct hsm_state_set)
205 #define LL_IOC_HSM_CT_START _IOW('f', 213, struct lustre_kernelcomm)
206 #define LL_IOC_HSM_COPY_START _IOW('f', 214, struct hsm_copy *)
207 #define LL_IOC_HSM_COPY_END _IOW('f', 215, struct hsm_copy *)
208 #define LL_IOC_HSM_PROGRESS _IOW('f', 216, struct hsm_user_request)
209 #define LL_IOC_HSM_REQUEST _IOW('f', 217, struct hsm_user_request)
210 #define LL_IOC_DATA_VERSION _IOR('f', 218, struct ioc_data_version)
211 #define LL_IOC_LOV_SWAP_LAYOUTS _IOW('f', 219, \
212 struct lustre_swap_layouts)
213 #define LL_IOC_HSM_ACTION _IOR('f', 220, \
214 struct hsm_current_action)
215 /* see <lustre_lib.h> for ioctl numbers 221-232 */
217 #define LL_IOC_LMV_SETSTRIPE _IOWR('f', 240, struct lmv_user_md)
218 #define LL_IOC_LMV_GETSTRIPE _IOWR('f', 241, struct lmv_user_md)
219 #define LL_IOC_REMOVE_ENTRY _IOWR('f', 242, __u64)
221 #define LL_STATFS_LMV 1
222 #define LL_STATFS_LOV 2
223 #define LL_STATFS_NODELAY 4
225 #define IOC_MDC_TYPE 'i'
226 #define IOC_MDC_LOOKUP _IOWR(IOC_MDC_TYPE, 20, struct obd_device *)
227 #define IOC_MDC_GETFILESTRIPE _IOWR(IOC_MDC_TYPE, 21, struct lov_user_md *)
228 #define IOC_MDC_GETFILEINFO _IOWR(IOC_MDC_TYPE, 22, struct lov_user_mds_data *)
229 #define LL_IOC_MDC_GETINFO _IOWR(IOC_MDC_TYPE, 23, struct lov_user_mds_data *)
231 /* Keep these for backward compartability. */
232 #define LL_IOC_OBD_STATFS IOC_OBD_STATFS
233 #define IOC_MDC_GETSTRIPE IOC_MDC_GETFILESTRIPE
236 #define MAX_OBD_NAME 128 /* If this changes, a NEW ioctl must be added */
238 /* Hopefully O_LOV_DELAY_CREATE does not conflict with standard O_xxx flags.
239 * Previously it was defined as 0100000000 and conflicts with FMODE_NONOTIFY
240 * which was added since kernel 2.6.36, so we redefine it as 020000000.
241 * To be compatible with old version's statically linked binary, finally we
242 * define it as (020000000 | 0100000000).
244 #define O_LOV_DELAY_CREATE 0120000000
246 #define LL_FILE_IGNORE_LOCK 0x00000001
247 #define LL_FILE_GROUP_LOCKED 0x00000002
248 #define LL_FILE_READAHEA 0x00000004
249 #define LL_FILE_LOCKED_DIRECTIO 0x00000008 /* client-side locks with dio */
250 #define LL_FILE_LOCKLESS_IO 0x00000010 /* server-side locks with cio */
251 #define LL_FILE_RMTACL 0x00000020
253 #define LOV_USER_MAGIC_V1 0x0BD10BD0
254 #define LOV_USER_MAGIC LOV_USER_MAGIC_V1
255 #define LOV_USER_MAGIC_JOIN_V1 0x0BD20BD0
256 #define LOV_USER_MAGIC_V3 0x0BD30BD0
258 #define LMV_MAGIC_V1 0x0CD10CD0 /*normal stripe lmv magic */
259 #define LMV_USER_MAGIC 0x0CD20CD0 /*default lmv magic*/
261 #define LOV_PATTERN_RAID0 0x001
262 #define LOV_PATTERN_RAID1 0x002
263 #define LOV_PATTERN_FIRST 0x100
265 #define LOV_MAXPOOLNAME 16
266 #define LOV_POOLNAMEF "%.16s"
268 #define LOV_MIN_STRIPE_BITS 16 /* maximum PAGE_SIZE (ia64), power of 2 */
269 #define LOV_MIN_STRIPE_SIZE (1 << LOV_MIN_STRIPE_BITS)
270 #define LOV_MAX_STRIPE_COUNT_OLD 160
271 /* This calculation is crafted so that input of 4096 will result in 160
272 * which in turn is equal to old maximal stripe count.
273 * XXX: In fact this is too simpified for now, what it also need is to get
274 * ea_type argument to clearly know how much space each stripe consumes.
276 * The limit of 12 pages is somewhat arbitrary, but is a reasonably large
277 * allocation that is sufficient for the current generation of systems.
279 * (max buffer size - lov+rpc header) / sizeof(struct lov_ost_data_v1) */
280 #define LOV_MAX_STRIPE_COUNT 2000 /* ((12 * 4096 - 256) / 24) */
281 #define LOV_ALL_STRIPES 0xffff /* only valid for directories */
282 #define LOV_V1_INSANE_STRIPE_COUNT 65532 /* maximum stripe count bz13933 */
284 #define lov_user_ost_data lov_user_ost_data_v1
285 struct lov_user_ost_data_v1 { /* per-stripe data structure */
286 struct ost_id l_ost_oi; /* OST object ID */
287 __u32 l_ost_gen; /* generation of this OST index */
288 __u32 l_ost_idx; /* OST index in LOV */
289 } __attribute__((packed));
290 #define l_object_id l_ost_oi.oi_id
291 #define l_object_seq l_ost_oi.oi_seq
293 #define lov_user_md lov_user_md_v1
294 struct lov_user_md_v1 { /* LOV EA user data (host-endian) */
295 __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V1 */
296 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
297 struct ost_id lmm_oi; /* LOV object ID */
298 __u32 lmm_stripe_size; /* size of stripe in bytes */
299 __u16 lmm_stripe_count; /* num stripes in use for this object */
301 __u16 lmm_stripe_offset; /* starting stripe offset in
302 * lmm_objects, use when writing */
303 __u16 lmm_layout_gen; /* layout generation number
304 * used when reading */
306 struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
307 } __attribute__((packed, __may_alias__));
309 struct lov_user_md_v3 { /* LOV EA user data (host-endian) */
310 __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V3 */
311 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
312 struct ost_id lmm_oi; /* LOV object ID */
313 __u32 lmm_stripe_size; /* size of stripe in bytes */
314 __u16 lmm_stripe_count; /* num stripes in use for this object */
316 __u16 lmm_stripe_offset; /* starting stripe offset in
317 * lmm_objects, use when writing */
318 __u16 lmm_layout_gen; /* layout generation number
319 * used when reading */
321 char lmm_pool_name[LOV_MAXPOOLNAME]; /* pool name */
322 struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
323 } __attribute__((packed));
325 /* Compile with -D_LARGEFILE64_SOURCE or -D_GNU_SOURCE (or #define) to
326 * use this. It is unsafe to #define those values in this header as it
327 * is possible the application has already #included <sys/stat.h>. */
328 #ifdef HAVE_LOV_USER_MDS_DATA
329 #define lov_user_mds_data lov_user_mds_data_v1
330 struct lov_user_mds_data_v1 {
331 lstat_t lmd_st; /* MDS stat struct */
332 struct lov_user_md_v1 lmd_lmm; /* LOV EA V1 user data */
333 } __attribute__((packed));
335 struct lov_user_mds_data_v3 {
336 lstat_t lmd_st; /* MDS stat struct */
337 struct lov_user_md_v3 lmd_lmm; /* LOV EA V3 user data */
338 } __attribute__((packed));
341 /* keep this to be the same size as lov_user_ost_data_v1 */
342 struct lmv_user_mds_data {
343 struct lu_fid lum_fid;
351 LMV_DEFAULT_TYPE = 1,
354 #define lmv_user_md lmv_user_md_v1
355 struct lmv_user_md_v1 {
356 __u32 lum_magic; /* must be the first field */
357 __u32 lum_stripe_count; /* dirstripe count */
358 __u32 lum_stripe_offset; /* MDT idx for default dirstripe */
359 __u32 lum_hash_type; /* Dir stripe policy */
360 __u32 lum_type; /* LMV type: default or normal */
364 char lum_pool_name[LOV_MAXPOOLNAME];
365 struct lmv_user_mds_data lum_objects[0];
368 static inline int lmv_user_md_size(int stripes, int lmm_magic)
370 return sizeof(struct lmv_user_md) +
371 stripes * sizeof(struct lmv_user_mds_data);
374 extern void lustre_swab_lmv_user_md(struct lmv_user_md *lum);
376 struct ll_recreate_obj {
382 __u64 id; /* holds object id */
383 __u32 generation; /* holds object generation */
384 __u32 f_type; /* holds object type or stripe idx when passing it to
385 * OST for saving into EA. */
393 static inline int obd_uuid_equals(const struct obd_uuid *u1,
394 const struct obd_uuid *u2)
396 return strcmp((char *)u1->uuid, (char *)u2->uuid) == 0;
399 static inline int obd_uuid_empty(struct obd_uuid *uuid)
401 return uuid->uuid[0] == '\0';
404 static inline void obd_str2uuid(struct obd_uuid *uuid, const char *tmp)
406 strncpy((char *)uuid->uuid, tmp, sizeof(*uuid));
407 uuid->uuid[sizeof(*uuid) - 1] = '\0';
410 /* For printf's only, make sure uuid is terminated */
411 static inline char *obd_uuid2str(struct obd_uuid *uuid)
413 if (uuid->uuid[sizeof(*uuid) - 1] != '\0') {
414 /* Obviously not safe, but for printfs, no real harm done...
415 we're always null-terminated, even in a race. */
416 static char temp[sizeof(*uuid)];
417 memcpy(temp, uuid->uuid, sizeof(*uuid) - 1);
418 temp[sizeof(*uuid) - 1] = '\0';
421 return (char *)(uuid->uuid);
424 /* Extract fsname from uuid (or target name) of a target
425 e.g. (myfs-OST0007_UUID -> myfs)
426 see also deuuidify. */
427 static inline void obd_uuid2fsname(char *buf, char *uuid, int buflen)
431 strncpy(buf, uuid, buflen - 1);
432 buf[buflen - 1] = '\0';
433 p = strrchr(buf, '-');
438 /* printf display format
439 e.g. printf("file FID is "DFID"\n", PFID(fid)); */
440 #define DFID_NOBRACE LPX64":0x%x:0x%x"
441 #define DFID "["DFID_NOBRACE"]"
447 /* scanf input parse format -- strip '[' first.
448 e.g. sscanf(fidstr, SFID, RFID(&fid)); */
449 /* #define SFID "0x"LPX64i":0x"LPSZX":0x"LPSZX""
450 liblustreapi.c:2893: warning: format '%lx' expects type 'long unsigned int *', but argument 4 has type 'unsigned int *'
451 liblustreapi.c:2893: warning: format '%lx' expects type 'long unsigned int *', but argument 5 has type 'unsigned int *'
453 #define SFID "0x"LPX64i":0x%x:0x%x"
460 /********* Quotas **********/
462 /* these must be explicitly translated into linux Q_* in ll_dir_ioctl */
463 #define LUSTRE_Q_QUOTAON 0x800002 /* turn quotas on */
464 #define LUSTRE_Q_QUOTAOFF 0x800003 /* turn quotas off */
465 #define LUSTRE_Q_GETINFO 0x800005 /* get information about quota files */
466 #define LUSTRE_Q_SETINFO 0x800006 /* set information about quota files */
467 #define LUSTRE_Q_GETQUOTA 0x800007 /* get user quota structure */
468 #define LUSTRE_Q_SETQUOTA 0x800008 /* set user quota structure */
469 /* lustre-specific control commands */
470 #define LUSTRE_Q_INVALIDATE 0x80000b /* invalidate quota data */
471 #define LUSTRE_Q_FINVALIDATE 0x80000c /* invalidate filter quota data */
473 #define UGQUOTA 2 /* set both USRQUOTA and GRPQUOTA */
475 struct if_quotacheck {
477 struct obd_uuid obd_uuid;
480 #define IDENTITY_DOWNCALL_MAGIC 0x6d6dd629
483 #define N_PERMS_MAX 64
485 struct perm_downcall_data {
491 struct identity_downcall_data {
498 struct perm_downcall_data idd_perms[N_PERMS_MAX];
502 /* for non-mapped uid/gid */
503 #define NOBODY_UID 99
504 #define NOBODY_GID 99
506 #define INVALID_ID (-1)
515 #ifdef NEED_QUOTA_DEFS
517 #define QIF_BLIMITS 1
519 #define QIF_ILIMITS 4
523 #define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
524 #define QIF_USAGE (QIF_SPACE | QIF_INODES)
525 #define QIF_TIMES (QIF_BTIME | QIF_ITIME)
526 #define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
529 #endif /* !__KERNEL__ */
531 /* lustre volatile file support
532 * file name header: .^L^S^T^R:volatile"
534 #define LUSTRE_VOLATILE_HDR ".\x0c\x13\x14\x12:VOLATILE"
535 #define LUSTRE_VOLATILE_HDR_LEN 14
536 /* hdr + MDT index */
537 #define LUSTRE_VOLATILE_IDX LUSTRE_VOLATILE_HDR":%.4X:"
539 typedef enum lustre_quota_version {
541 } lustre_quota_version_t;
543 /* XXX: same as if_dqinfo struct in kernel */
551 /* XXX: same as if_dqblk struct in kernel, plus one padding */
553 __u64 dqb_bhardlimit;
554 __u64 dqb_bsoftlimit;
556 __u64 dqb_ihardlimit;
557 __u64 dqb_isoftlimit;
579 struct obd_dqinfo qc_dqinfo;
580 struct obd_dqblk qc_dqblk;
582 struct obd_uuid obd_uuid;
585 /* swap layout flags */
586 #define SWAP_LAYOUTS_CHECK_DV1 (1 << 0)
587 #define SWAP_LAYOUTS_CHECK_DV2 (1 << 1)
588 #define SWAP_LAYOUTS_KEEP_MTIME (1 << 2)
589 #define SWAP_LAYOUTS_KEEP_ATIME (1 << 3)
590 struct lustre_swap_layouts {
599 /********* Changelogs **********/
600 /** Changelog record types */
601 enum changelog_rec_type {
603 CL_CREATE = 1, /* namespace */
604 CL_MKDIR = 2, /* namespace */
605 CL_HARDLINK = 3, /* namespace */
606 CL_SOFTLINK = 4, /* namespace */
607 CL_MKNOD = 5, /* namespace */
608 CL_UNLINK = 6, /* namespace */
609 CL_RMDIR = 7, /* namespace */
610 CL_RENAME = 8, /* namespace */
611 CL_EXT = 9, /* namespace extended record (2nd half of rename) */
612 CL_OPEN = 10, /* not currently used */
613 CL_CLOSE = 11, /* may be written to log only with mtime change */
618 CL_HSM = 16, /* HSM specific events, see flags */
619 CL_MTIME = 17, /* Precedence: setattr > mtime > ctime > atime */
625 static inline const char *changelog_type2str(int type) {
626 static const char *changelog_str[] = {
627 "MARK", "CREAT", "MKDIR", "HLINK", "SLINK", "MKNOD", "UNLNK",
628 "RMDIR", "RENME", "RNMTO", "OPEN", "CLOSE", "IOCTL", "TRUNC",
629 "SATTR", "XATTR", "HSM", "MTIME", "CTIME", "ATIME" };
630 if (type >= 0 && type < CL_LAST)
631 return changelog_str[type];
635 /* per-record flags */
636 #define CLF_VERSION 0x1000
637 #define CLF_EXT_VERSION 0x2000
638 #define CLF_FLAGSHIFT 12
639 #define CLF_FLAGMASK ((1U << CLF_FLAGSHIFT) - 1)
640 #define CLF_VERMASK (~CLF_FLAGMASK)
641 /* Anything under the flagmask may be per-type (if desired) */
642 /* Flags for unlink */
643 #define CLF_UNLINK_LAST 0x0001 /* Unlink of last hardlink */
644 #define CLF_UNLINK_HSM_EXISTS 0x0002 /* File has something in HSM */
645 /* HSM cleaning needed */
646 /* Flags for rename */
647 #define CLF_RENAME_LAST 0x0001 /* rename unlink last hardlink of target */
650 /* 12b used (from high weight to low weight):
655 #define CLF_HSM_ERR_L 0 /* HSM return code, 7 bits */
656 #define CLF_HSM_ERR_H 6
657 #define CLF_HSM_EVENT_L 7 /* HSM event, 3 bits, see enum hsm_event */
658 #define CLF_HSM_EVENT_H 9
659 #define CLF_HSM_FLAG_L 10 /* HSM flags, 2 bits, 1 used, 1 spare */
660 #define CLF_HSM_FLAG_H 11
661 #define CLF_HSM_SPARE_L 12 /* 4 spare bits */
662 #define CLF_HSM_SPARE_H 15
663 #define CLF_HSM_LAST 15
665 /* Remove bits higher than _h, then extract the value
666 * between _h and _l by shifting lower weigth to bit 0. */
667 #define CLF_GET_BITS(_b, _h, _l) (((_b << (CLF_HSM_LAST - _h)) & 0xFFFF) \
668 >> (CLF_HSM_LAST - _h + _l))
670 #define CLF_HSM_SUCCESS 0x00
671 #define CLF_HSM_MAXERROR 0x7E
672 #define CLF_HSM_ERROVERFLOW 0x7F
674 #define CLF_HSM_DIRTY 1 /* file is dirty after HSM request end */
676 /* 3 bits field => 8 values allowed */
688 static inline enum hsm_event hsm_get_cl_event(__u16 flags)
690 return CLF_GET_BITS(flags, CLF_HSM_EVENT_H, CLF_HSM_EVENT_L);
693 static inline void hsm_set_cl_event(int *flags, enum hsm_event he)
695 *flags |= (he << CLF_HSM_EVENT_L);
698 static inline __u16 hsm_get_cl_flags(int flags)
700 return CLF_GET_BITS(flags, CLF_HSM_FLAG_H, CLF_HSM_FLAG_L);
703 static inline void hsm_set_cl_flags(int *flags, int bits)
705 *flags |= (bits << CLF_HSM_FLAG_L);
708 static inline int hsm_get_cl_error(int flags)
710 return CLF_GET_BITS(flags, CLF_HSM_ERR_H, CLF_HSM_ERR_L);
713 static inline void hsm_set_cl_error(int *flags, int error)
715 *flags |= (error << CLF_HSM_ERR_L);
718 #define CR_MAXSIZE cfs_size_round(2*NAME_MAX + 1 + sizeof(struct changelog_rec))
720 struct changelog_rec {
722 __u16 cr_flags; /**< (flags&CLF_FLAGMASK)|CLF_VERSION */
723 __u32 cr_type; /**< \a changelog_rec_type */
724 __u64 cr_index; /**< changelog record number */
725 __u64 cr_prev; /**< last index for this target fid */
728 lustre_fid cr_tfid; /**< target fid */
729 __u32 cr_markerflags; /**< CL_MARK flags */
731 lustre_fid cr_pfid; /**< parent fid */
732 char cr_name[0]; /**< last element */
733 } __attribute__((packed));
735 /* changelog_ext_rec is 2*sizeof(lu_fid) bigger than changelog_rec, to save
736 * space, only rename uses changelog_ext_rec, while others use changelog_rec to
739 struct changelog_ext_rec {
741 __u16 cr_flags; /**< (flags & CLF_FLAGMASK) |
743 __u32 cr_type; /**< \a changelog_rec_type */
744 __u64 cr_index; /**< changelog record number */
745 __u64 cr_prev; /**< last index for this target fid */
748 lustre_fid cr_tfid; /**< target fid */
749 __u32 cr_markerflags; /**< CL_MARK flags */
751 lustre_fid cr_pfid; /**< target parent fid */
752 lustre_fid cr_sfid; /**< source fid, or zero */
753 lustre_fid cr_spfid; /**< source parent fid, or zero */
754 char cr_name[0]; /**< last element */
755 } __attribute__((packed));
757 #define CHANGELOG_REC_EXTENDED(rec) \
758 (((rec)->cr_flags & CLF_VERMASK) == CLF_EXT_VERSION)
760 static inline int changelog_rec_size(struct changelog_rec *rec)
762 return CHANGELOG_REC_EXTENDED(rec) ? sizeof(struct changelog_ext_rec):
766 static inline char *changelog_rec_name(struct changelog_rec *rec)
768 return CHANGELOG_REC_EXTENDED(rec) ?
769 ((struct changelog_ext_rec *)rec)->cr_name: rec->cr_name;
772 static inline int changelog_rec_snamelen(struct changelog_ext_rec *rec)
774 return rec->cr_namelen - strlen(rec->cr_name) - 1;
777 static inline char *changelog_rec_sname(struct changelog_ext_rec *rec)
779 return rec->cr_name + strlen(rec->cr_name) + 1;
782 struct ioc_changelog {
789 enum changelog_message_type {
790 CL_RECORD = 10, /* message is a changelog_rec */
791 CL_EOF = 11, /* at end of current changelog */
794 /********* Misc **********/
796 struct ioc_data_version {
798 __u64 idv_flags; /* See LL_DV_xxx */
800 #define LL_DV_NOFLUSH 0x01 /* Do not take READ EXTENT LOCK before sampling
801 version. Dirty caches are left unchanged. */
804 # define offsetof(typ,memb) ((unsigned long)((char *)&(((typ *)0)->memb)))
807 #define dot_lustre_name ".lustre"
810 /********* HSM **********/
812 /** HSM per-file state
813 * See HSM_FLAGS below.
816 HS_EXISTS = 0x00000001,
817 HS_DIRTY = 0x00000002,
818 HS_RELEASED = 0x00000004,
819 HS_ARCHIVED = 0x00000008,
820 HS_NORELEASE = 0x00000010,
821 HS_NOARCHIVE = 0x00000020,
822 HS_LOST = 0x00000040,
825 /* HSM user-setable flags. */
826 #define HSM_USER_MASK (HS_NORELEASE | HS_NOARCHIVE | HS_DIRTY)
828 /* Other HSM flags. */
829 #define HSM_STATUS_MASK (HS_EXISTS | HS_LOST | HS_RELEASED | HS_ARCHIVED)
832 * All HSM-related possible flags that could be applied to a file.
833 * This should be kept in sync with hsm_states.
835 #define HSM_FLAGS_MASK (HSM_USER_MASK | HSM_STATUS_MASK)
838 * HSMÂ request progress state
840 enum hsm_progress_states {
847 static inline char *hsm_progress_state2name(enum hsm_progress_states s)
850 case HPS_WAITING: return "waiting";
851 case HPS_RUNNING: return "running";
852 case HPS_DONE: return "done";
853 default: return "unknown";
860 } __attribute__((packed));
863 * Current HSM states of a Lustre file.
865 * This structure purpose is to be sent to user-space mainly. It describes the
866 * current HSM flags and in-progress action.
868 struct hsm_user_state {
869 /** Current HSM states, from enum hsm_states. */
871 __u32 hus_archive_id;
872 /** The current undergoing action, if there is one */
873 __u32 hus_in_progress_state;
874 __u32 hus_in_progress_action;
875 struct hsm_extent hus_in_progress_location;
876 char hus_extended_info[];
879 struct hsm_state_set_ioc {
880 struct lu_fid hssi_fid;
882 __u64 hssi_clearmask;
886 * This structure describes the current in-progress action for a file.
887 * it is retuned to user space and send over the wire
889 struct hsm_current_action {
890 /** The current undergoing action, if there is one */
891 /* state is one of hsm_progress_states */
893 /* action is one of hsm_user_action */
895 struct hsm_extent hca_location;
898 /***** HSM user requests ******/
899 /* User-generated (lfs/ioctl) request types */
900 enum hsm_user_action {
901 HUA_NONE = 1, /* no action (noop) */
902 HUA_ARCHIVE = 10, /* copy to hsm */
903 HUA_RESTORE = 11, /* prestage */
904 HUA_RELEASE = 12, /* drop ost objects */
905 HUA_REMOVE = 13, /* remove from archive */
906 HUA_CANCEL = 14 /* cancel a request */
909 static inline char *hsm_user_action2name(enum hsm_user_action a)
912 case HUA_NONE: return "NOOP";
913 case HUA_ARCHIVE: return "ARCHIVE";
914 case HUA_RESTORE: return "RESTORE";
915 case HUA_RELEASE: return "RELEASE";
916 case HUA_REMOVE: return "REMOVE";
917 case HUA_CANCEL: return "CANCEL";
918 default: return "UNKNOWN";
923 * List of hr_flags (bit field)
925 #define HSM_FORCE_ACTION 0x0001
926 /* used by CT, connot be set by user */
927 #define HSM_GHOST_COPY 0x0002
930 * Contains all the fixed part of struct hsm_user_request.
934 __u32 hr_action; /* enum hsm_user_action */
935 __u32 hr_archive_id; /* archive id, used only with HUA_ARCHIVE */
936 __u64 hr_flags; /* request flags */
937 __u32 hr_itemcount; /* item count in hur_user_item vector */
941 struct hsm_user_item {
943 struct hsm_extent hui_extent;
944 } __attribute__((packed));
946 struct hsm_user_request {
947 struct hsm_request hur_request;
948 struct hsm_user_item hur_user_item[0];
949 /* extra data blob at end of struct (after all
950 * hur_user_items), only use helpers to access it
952 } __attribute__((packed));
954 /** Return pointer to data field in a hsm user request */
955 static inline void *hur_data(struct hsm_user_request *hur)
957 return &(hur->hur_user_item[hur->hur_request.hr_itemcount]);
960 /** Compute the current length of the provided hsm_user_request. */
961 static inline int hur_len(struct hsm_user_request *hur)
963 return offsetof(struct hsm_user_request,
964 hur_user_item[hur->hur_request.hr_itemcount]) +
965 hur->hur_request.hr_data_len;
968 /****** HSM RPCs to copytool *****/
969 /* Message types the copytool may receive */
970 enum hsm_message_type {
971 HMT_ACTION_LIST = 100, /* message is a hsm_action_list */
974 /* Actions the copytool may be instructed to take for a given action_item */
975 enum hsm_copytool_action {
976 HSMA_NONE = 10, /* no action */
977 HSMA_ARCHIVE = 20, /* arbitrary offset */
983 static inline char *hsm_copytool_action2name(enum hsm_copytool_action a)
986 case HSMA_NONE: return "NOOP";
987 case HSMA_ARCHIVE: return "ARCHIVE";
988 case HSMA_RESTORE: return "RESTORE";
989 case HSMA_REMOVE: return "REMOVE";
990 case HSMA_CANCEL: return "CANCEL";
991 default: return "UNKNOWN";
995 /* Copytool item action description */
996 struct hsm_action_item {
997 __u32 hai_len; /* valid size of this struct */
998 __u32 hai_action; /* hsm_copytool_action, but use known size */
999 lustre_fid hai_fid; /* Lustre FID to operated on */
1000 lustre_fid hai_dfid; /* fid used for data access */
1001 struct hsm_extent hai_extent; /* byte range to operate on */
1002 __u64 hai_cookie; /* action cookie from coordinator */
1003 __u64 hai_gid; /* grouplock id */
1004 char hai_data[0]; /* variable length */
1005 } __attribute__((packed));
1008 * helper function which print in hexa the first bytes of
1010 * \param hai [IN] record to print
1011 * \param buffer [OUT] output buffer
1012 * \param len [IN] max buffer len
1015 static inline char *hai_dump_data_field(struct hsm_action_item *hai,
1016 char *buffer, int len)
1018 int i, sz, data_len;
1023 data_len = hai->hai_len - sizeof(*hai);
1024 for (i = 0 ; (i < data_len) && (sz > 0) ; i++)
1028 cnt = snprintf(ptr, sz, "%.2X",
1029 (unsigned char)hai->hai_data[i]);
1037 /* Copytool action list */
1038 #define HAL_VERSION 1
1039 #define HAL_MAXSIZE LNET_MTU /* bytes, used in userspace only */
1040 struct hsm_action_list {
1042 __u32 hal_count; /* number of hai's to follow */
1043 __u64 hal_compound_id; /* returned by coordinator */
1045 __u32 hal_archive_id; /* which archive backend */
1047 char hal_fsname[0]; /* null-terminated */
1048 /* struct hsm_action_item[hal_count] follows, aligned on 8-byte
1049 boundaries. See hai_zero */
1050 } __attribute__((packed));
1052 #ifndef HAVE_CFS_SIZE_ROUND
1053 static inline int cfs_size_round (int val)
1055 return (val + 7) & (~0x7);
1057 #define HAVE_CFS_SIZE_ROUND
1060 /* Return pointer to first hai in action list */
1061 static inline struct hsm_action_item * hai_zero(struct hsm_action_list *hal)
1063 return (struct hsm_action_item *)(hal->hal_fsname +
1064 cfs_size_round(strlen(hal-> \
1067 /* Return pointer to next hai */
1068 static inline struct hsm_action_item * hai_next(struct hsm_action_item *hai)
1070 return (struct hsm_action_item *)((char *)hai +
1071 cfs_size_round(hai->hai_len));
1074 /* Return size of an hsm_action_list */
1075 static inline int hal_size(struct hsm_action_list *hal)
1078 struct hsm_action_item *hai;
1080 sz = sizeof(*hal) + cfs_size_round(strlen(hal->hal_fsname));
1081 hai = hai_zero(hal);
1082 for (i = 0 ; i < hal->hal_count ; i++) {
1083 sz += cfs_size_round(hai->hai_len);
1084 hai = hai_next(hai);
1089 /* Copytool progress reporting */
1090 #define HP_FLAG_COMPLETED 0x01
1091 #define HP_FLAG_RETRY 0x02
1093 struct hsm_progress {
1096 struct hsm_extent hp_extent;
1098 __u16 hp_errval; /* positive val */
1103 * Use by copytool during any hsm request they handled.
1104 * This structure is initialized by llapi_hsm_copy_start()
1105 * which is an helper over the ioctl() interface
1106 * Store Lustre, internal use only, data.
1109 __u64 hc_data_version;
1111 __u16 hc_errval; /* positive val */
1113 struct hsm_action_item hc_hai;
1116 /** @} lustreuser */
1118 #endif /* _LUSTRE_USER_H */