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.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2010, 2016, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/include/lustre/lustre_user.h
34 * Lustre public user-space interface definitions.
37 #ifndef _LUSTRE_USER_H
38 #define _LUSTRE_USER_H
40 /** \defgroup lustreuser lustreuser
45 #include <linux/types.h>
48 # include <linux/fs.h>
49 # include <linux/quota.h>
50 # include <linux/string.h> /* snprintf() */
51 # include <linux/version.h>
52 #else /* !__KERNEL__ */
53 # define NEED_QUOTA_DEFS
56 # include <stdio.h> /* snprintf() */
58 # include <sys/quota.h>
59 # include <sys/stat.h>
60 #endif /* __KERNEL__ */
61 #include <lustre/ll_fiemap.h>
63 #if defined(__x86_64__) || defined(__ia64__) || defined(__ppc64__) || \
64 defined(__craynv) || defined(__mips64__) || defined(__powerpc64__) || \
66 typedef struct stat lstat_t;
67 # define lstat_f lstat
68 # define fstat_f fstat
69 # define fstatat_f fstatat
70 # define HAVE_LOV_USER_MDS_DATA
71 #elif defined(__USE_LARGEFILE64) || defined(__KERNEL__)
72 typedef struct stat64 lstat_t;
73 # define lstat_f lstat64
74 # define fstat_f fstat64
75 # define fstatat_f fstatat64
76 # define HAVE_LOV_USER_MDS_DATA
79 #define LUSTRE_EOF 0xffffffffffffffffULL
82 #define LL_SUPER_MAGIC 0x0BD00BD0
84 #ifndef FSFILT_IOC_GETFLAGS
85 #define FSFILT_IOC_GETFLAGS _IOR('f', 1, long)
86 #define FSFILT_IOC_SETFLAGS _IOW('f', 2, long)
87 #define FSFILT_IOC_GETVERSION _IOR('f', 3, long)
88 #define FSFILT_IOC_SETVERSION _IOW('f', 4, long)
89 #define FSFILT_IOC_GETVERSION_OLD _IOR('v', 1, long)
90 #define FSFILT_IOC_SETVERSION_OLD _IOW('v', 2, long)
93 /* FIEMAP flags supported by Lustre */
94 #define LUSTRE_FIEMAP_FLAGS_COMPAT (FIEMAP_FLAG_SYNC | FIEMAP_FLAG_DEVICE_ORDER)
96 enum obd_statfs_state {
97 OS_STATE_DEGRADED = 0x00000001, /**< RAID degraded/rebuilding */
98 OS_STATE_READONLY = 0x00000002, /**< filesystem is read-only */
99 OS_STATE_ENOSPC = 0x00000020, /**< not enough free space */
100 OS_STATE_ENOINO = 0x00000040, /**< not enough inodes */
114 __u32 os_state; /**< obd_statfs_state OS_STATE_* flag */
115 __u32 os_fprecreated; /* objs available now to the caller */
116 /* used in QoS code to find preferred
131 * FID is a cluster-wide unique identifier of a file or an object (stripe).
132 * FIDs are never reused.
136 * FID sequence. Sequence is a unit of migration: all files (objects)
137 * with FIDs from a given sequence are stored on the same server.
138 * Lustre should support 2^64 objects, so even if each sequence
139 * has only a single object we can still enumerate 2^64 objects.
142 /* FID number within sequence. */
145 * FID version, used to distinguish different versions (in the sense
146 * of snapshots, etc.) of the same file system object. Not currently
152 static inline bool fid_is_zero(const struct lu_fid *fid)
154 return fid->f_seq == 0 && fid->f_oid == 0;
157 /* Currently, the filter_fid::ff_parent::f_ver is not the real parent
158 * MDT-object's FID::f_ver, instead it is the OST-object index in its
159 * parent MDT-object's layout EA. */
160 #define f_stripe_idx f_ver
163 __u32 ol_stripe_size;
164 __u32 ol_stripe_count;
168 } __attribute__((packed));
170 /* keep this one for compatibility */
171 struct filter_fid_old {
172 struct lu_fid ff_parent;
178 struct lu_fid ff_parent;
179 struct ost_layout ff_layout;
180 } __attribute__((packed));
182 /* Userspace should treat lu_fid as opaque, and only use the following methods
183 * to print or parse them. Other functions (e.g. compare, swab) could be moved
184 * here from lustre_idl.h if needed. */
185 typedef struct lu_fid lustre_fid;
188 LMAC_HSM = 0x00000001,
189 /* LMAC_SOM = 0x00000002, obsolete since 2.8.0 */
190 LMAC_NOT_IN_OI = 0x00000004, /* the object does NOT need OI mapping */
191 LMAC_FID_ON_OST = 0x00000008, /* For OST-object, its OI mapping is
192 * under /O/<seq>/d<x>. */
193 LMAC_STRIPE_INFO = 0x00000010, /* stripe info in the LMA EA. */
194 LMAC_COMP_INFO = 0x00000020, /* Component info in the LMA EA. */
198 * Masks for all features that should be supported by a Lustre version to
199 * access a specific file.
200 * This information is stored in lustre_mdt_attrs::lma_incompat.
203 LMAI_RELEASED = 0x00000001, /* file is released */
204 LMAI_AGENT = 0x00000002, /* agent inode */
205 LMAI_REMOTE_PARENT = 0x00000004, /* the parent of the object
206 is on the remote MDT */
207 LMAI_STRIPED = 0x00000008, /* striped directory inode */
208 LMAI_ORPHAN = 0x00000010, /* inode is orphan */
209 LMA_INCOMPAT_SUPP = (LMAI_AGENT | LMAI_REMOTE_PARENT | \
210 LMAI_STRIPED | LMAI_ORPHAN)
215 * Following struct for object attributes, that will be kept inode's EA.
216 * Introduced in 2.0 release (please see b15993, for details)
217 * Added to all objects since Lustre 2.4 as contains self FID
219 struct lustre_mdt_attrs {
221 * Bitfield for supported data in this structure. From enum lma_compat.
222 * lma_self_fid and lma_flags are always available.
226 * Per-file incompat feature list. Lustre version should support all
227 * flags set in this field. The supported feature mask is available in
231 /** FID of this inode */
232 struct lu_fid lma_self_fid;
235 struct lustre_ost_attrs {
236 /* Use lustre_mdt_attrs directly for now, need a common header
237 * structure if want to change lustre_mdt_attrs in future. */
238 struct lustre_mdt_attrs loa_lma;
240 /* Below five elements are for OST-object's PFID EA, the
241 * lma_parent_fid::f_ver is composed of the stripe_count (high 16 bits)
242 * and the stripe_index (low 16 bits), the size should not exceed
243 * 5 * sizeof(__u64)) to be accessable by old Lustre. If the flag
244 * LMAC_STRIPE_INFO is set, then loa_parent_fid and loa_stripe_size
245 * are valid; if the flag LMAC_COMP_INFO is set, then the next three
246 * loa_comp_* elements are valid. */
247 struct lu_fid loa_parent_fid;
248 __u32 loa_stripe_size;
250 __u64 loa_comp_start;
255 * Prior to 2.4, the LMA structure also included SOM attributes which has since
256 * been moved to a dedicated xattr
257 * lma_flags was also removed because of lma_compat/incompat fields.
259 #define LMA_OLD_SIZE (sizeof(struct lustre_mdt_attrs) + 5 * sizeof(__u64))
262 * OST object IDentifier.
270 struct lu_fid oi_fid;
274 #define DOSTID "%#llx:%llu"
275 #define POSTID(oi) ((unsigned long long)ostid_seq(oi)), \
276 ((unsigned long long)ostid_id(oi))
278 struct ll_futimes_3 {
280 __u64 lfu_atime_nsec;
282 __u64 lfu_mtime_nsec;
284 __u64 lfu_ctime_nsec;
288 * The ioctl naming rules:
289 * LL_* - works on the currently opened filehandle instead of parent dir
290 * *_OBD_* - gets data for both OSC or MDC (LOV, LMV indirectly)
291 * *_MDC_* - gets/sets data related to MDC
292 * *_LOV_* - gets/sets data related to OSC/LOV
293 * *FILE* - called on parent dir and passes in a filename
294 * *STRIPE* - set/get lov_user_md
295 * *INFO - set/get lov_user_mds_data
297 /* lustre_ioctl.h 101-150 */
298 #define LL_IOC_GETFLAGS _IOR ('f', 151, long)
299 #define LL_IOC_SETFLAGS _IOW ('f', 152, long)
300 #define LL_IOC_CLRFLAGS _IOW ('f', 153, long)
301 #define LL_IOC_LOV_SETSTRIPE _IOW ('f', 154, long)
302 #define LL_IOC_LOV_GETSTRIPE _IOW ('f', 155, long)
303 #define LL_IOC_LOV_SETEA _IOW ('f', 156, long)
304 /* LL_IOC_RECREATE_OBJ 157 obsolete */
305 /* LL_IOC_RECREATE_FID 157 obsolete */
306 #define LL_IOC_GROUP_LOCK _IOW ('f', 158, long)
307 #define LL_IOC_GROUP_UNLOCK _IOW ('f', 159, long)
308 /* LL_IOC_QUOTACHECK 160 OBD_IOC_QUOTACHECK */
309 /* LL_IOC_POLL_QUOTACHECK 161 OBD_IOC_POLL_QUOTACHECK */
310 /* LL_IOC_QUOTACTL 162 OBD_IOC_QUOTACTL */
311 #define IOC_OBD_STATFS _IOWR('f', 164, struct obd_statfs *)
312 /* IOC_LOV_GETINFO 165 obsolete */
313 #define LL_IOC_FLUSHCTX _IOW ('f', 166, long)
314 /* LL_IOC_RMTACL 167 obsolete */
315 #define LL_IOC_GETOBDCOUNT _IOR ('f', 168, long)
316 #define LL_IOC_LLOOP_ATTACH _IOWR('f', 169, long)
317 #define LL_IOC_LLOOP_DETACH _IOWR('f', 170, long)
318 #define LL_IOC_LLOOP_INFO _IOWR('f', 171, struct lu_fid)
319 #define LL_IOC_LLOOP_DETACH_BYDEV _IOWR('f', 172, long)
320 #define LL_IOC_PATH2FID _IOR ('f', 173, long)
321 #define LL_IOC_GET_CONNECT_FLAGS _IOWR('f', 174, __u64 *)
322 #define LL_IOC_GET_MDTIDX _IOR ('f', 175, int)
323 #define LL_IOC_FUTIMES_3 _IOWR('f', 176, struct ll_futimes_3)
324 /* lustre_ioctl.h 177-210 */
325 #define LL_IOC_HSM_STATE_GET _IOR('f', 211, struct hsm_user_state)
326 #define LL_IOC_HSM_STATE_SET _IOW('f', 212, struct hsm_state_set)
327 #define LL_IOC_HSM_CT_START _IOW('f', 213, struct lustre_kernelcomm)
328 #define LL_IOC_HSM_COPY_START _IOW('f', 214, struct hsm_copy *)
329 #define LL_IOC_HSM_COPY_END _IOW('f', 215, struct hsm_copy *)
330 #define LL_IOC_HSM_PROGRESS _IOW('f', 216, struct hsm_user_request)
331 #define LL_IOC_HSM_REQUEST _IOW('f', 217, struct hsm_user_request)
332 #define LL_IOC_DATA_VERSION _IOR('f', 218, struct ioc_data_version)
333 #define LL_IOC_LOV_SWAP_LAYOUTS _IOW('f', 219, \
334 struct lustre_swap_layouts)
335 #define LL_IOC_HSM_ACTION _IOR('f', 220, \
336 struct hsm_current_action)
337 /* lustre_ioctl.h 221-232 */
338 #define LL_IOC_LMV_SETSTRIPE _IOWR('f', 240, struct lmv_user_md)
339 #define LL_IOC_LMV_GETSTRIPE _IOWR('f', 241, struct lmv_user_md)
340 #define LL_IOC_REMOVE_ENTRY _IOWR('f', 242, __u64)
341 #define LL_IOC_SET_LEASE _IOWR('f', 243, long)
342 #define LL_IOC_GET_LEASE _IO('f', 244)
343 #define LL_IOC_HSM_IMPORT _IOWR('f', 245, struct hsm_user_import)
344 #define LL_IOC_LMV_SET_DEFAULT_STRIPE _IOWR('f', 246, struct lmv_user_md)
345 #define LL_IOC_MIGRATE _IOR('f', 247, int)
346 #define LL_IOC_FID2MDTIDX _IOWR('f', 248, struct lu_fid)
347 #define LL_IOC_GETPARENT _IOWR('f', 249, struct getparent)
348 #define LL_IOC_LADVISE _IOR('f', 250, struct llapi_lu_ladvise)
350 /* Lease types for use as arg and return of LL_IOC_{GET,SET}_LEASE ioctl. */
352 LL_LEASE_RDLCK = 0x1,
353 LL_LEASE_WRLCK = 0x2,
354 LL_LEASE_UNLCK = 0x4,
357 #define LL_STATFS_LMV 1
358 #define LL_STATFS_LOV 2
359 #define LL_STATFS_NODELAY 4
361 #define IOC_MDC_TYPE 'i'
362 #define IOC_MDC_LOOKUP _IOWR(IOC_MDC_TYPE, 20, struct obd_device *)
363 #define IOC_MDC_GETFILESTRIPE _IOWR(IOC_MDC_TYPE, 21, struct lov_user_md *)
364 #define IOC_MDC_GETFILEINFO _IOWR(IOC_MDC_TYPE, 22, struct lov_user_mds_data *)
365 #define LL_IOC_MDC_GETINFO _IOWR(IOC_MDC_TYPE, 23, struct lov_user_mds_data *)
367 #define MAX_OBD_NAME 128 /* If this changes, a NEW ioctl must be added */
369 /* Define O_LOV_DELAY_CREATE to be a mask that is not useful for regular
370 * files, but are unlikely to be used in practice and are not harmful if
371 * used incorrectly. O_NOCTTY and FASYNC are only meaningful for character
372 * devices and are safe for use on new files. See LU-4209. */
373 /* To be compatible with old statically linked binary we keep the check for
374 * the older 0100000000 flag. This is already removed upstream. LU-812. */
375 #define O_LOV_DELAY_CREATE_1_8 0100000000 /* FMODE_NONOTIFY masked in 2.6.36 */
376 #define O_LOV_DELAY_CREATE_MASK (O_NOCTTY | FASYNC)
377 #define O_LOV_DELAY_CREATE (O_LOV_DELAY_CREATE_1_8 | \
378 O_LOV_DELAY_CREATE_MASK)
380 #define LL_FILE_IGNORE_LOCK 0x00000001
381 #define LL_FILE_GROUP_LOCKED 0x00000002
382 #define LL_FILE_READAHEA 0x00000004
383 #define LL_FILE_LOCKED_DIRECTIO 0x00000008 /* client-side locks with dio */
384 #define LL_FILE_LOCKLESS_IO 0x00000010 /* server-side locks with cio */
386 #define LOV_USER_MAGIC_V1 0x0BD10BD0
387 #define LOV_USER_MAGIC LOV_USER_MAGIC_V1
388 #define LOV_USER_MAGIC_JOIN_V1 0x0BD20BD0
389 #define LOV_USER_MAGIC_V3 0x0BD30BD0
390 /* 0x0BD40BD0 is occupied by LOV_MAGIC_MIGRATE */
391 #define LOV_USER_MAGIC_SPECIFIC 0x0BD50BD0 /* for specific OSTs */
392 #define LOV_USER_MAGIC_COMP_V1 0x0BD60BD0
394 #define LMV_USER_MAGIC 0x0CD30CD0 /*default lmv magic*/
396 #define LOV_PATTERN_RAID0 0x001
397 #define LOV_PATTERN_RAID1 0x002
398 #define LOV_PATTERN_FIRST 0x100
399 #define LOV_PATTERN_CMOBD 0x200
401 #define LOV_PATTERN_F_MASK 0xffff0000
402 #define LOV_PATTERN_F_HOLE 0x40000000 /* there is hole in LOV EA */
403 #define LOV_PATTERN_F_RELEASED 0x80000000 /* HSM released file */
405 static inline bool lov_pattern_supported(__u32 pattern)
407 return pattern == LOV_PATTERN_RAID0 ||
408 pattern == (LOV_PATTERN_RAID0 | LOV_PATTERN_F_RELEASED);
411 #define LOV_MAXPOOLNAME 15
412 #define LOV_POOLNAMEF "%.15s"
414 #define LOV_MIN_STRIPE_BITS 16 /* maximum PAGE_SIZE (ia64), power of 2 */
415 #define LOV_MIN_STRIPE_SIZE (1 << LOV_MIN_STRIPE_BITS)
416 #define LOV_MAX_STRIPE_COUNT_OLD 160
417 /* This calculation is crafted so that input of 4096 will result in 160
418 * which in turn is equal to old maximal stripe count.
419 * XXX: In fact this is too simpified for now, what it also need is to get
420 * ea_type argument to clearly know how much space each stripe consumes.
422 * The limit of 12 pages is somewhat arbitrary, but is a reasonably large
423 * allocation that is sufficient for the current generation of systems.
425 * (max buffer size - lov+rpc header) / sizeof(struct lov_ost_data_v1) */
426 #define LOV_MAX_STRIPE_COUNT 2000 /* ((12 * 4096 - 256) / 24) */
427 #define LOV_ALL_STRIPES 0xffff /* only valid for directories */
428 #define LOV_V1_INSANE_STRIPE_COUNT 65532 /* maximum stripe count bz13933 */
430 #define XATTR_LUSTRE_PREFIX "lustre."
431 #define XATTR_LUSTRE_LOV XATTR_LUSTRE_PREFIX"lov"
433 #define lov_user_ost_data lov_user_ost_data_v1
434 struct lov_user_ost_data_v1 { /* per-stripe data structure */
435 struct ost_id l_ost_oi; /* OST object ID */
436 __u32 l_ost_gen; /* generation of this OST index */
437 __u32 l_ost_idx; /* OST index in LOV */
438 } __attribute__((packed));
440 #define lov_user_md lov_user_md_v1
441 struct lov_user_md_v1 { /* LOV EA user data (host-endian) */
442 __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V1 */
443 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
444 struct ost_id lmm_oi; /* MDT parent inode id/seq (id/0 for 1.x) */
445 __u32 lmm_stripe_size; /* size of stripe in bytes */
446 __u16 lmm_stripe_count; /* num stripes in use for this object */
448 __u16 lmm_stripe_offset; /* starting stripe offset in
449 * lmm_objects, use when writing */
450 __u16 lmm_layout_gen; /* layout generation number
451 * used when reading */
453 struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
454 } __attribute__((packed, __may_alias__));
456 struct lov_user_md_v3 { /* LOV EA user data (host-endian) */
457 __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V3 */
458 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
459 struct ost_id lmm_oi; /* MDT parent inode id/seq (id/0 for 1.x) */
460 __u32 lmm_stripe_size; /* size of stripe in bytes */
461 __u16 lmm_stripe_count; /* num stripes in use for this object */
463 __u16 lmm_stripe_offset; /* starting stripe offset in
464 * lmm_objects, use when writing */
465 __u16 lmm_layout_gen; /* layout generation number
466 * used when reading */
468 char lmm_pool_name[LOV_MAXPOOLNAME + 1]; /* pool name */
469 struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
470 } __attribute__((packed));
477 #define DEXT "[ %#llx , %#llx )"
478 #define PEXT(ext) (ext)->e_start, (ext)->e_end
480 static inline bool lu_extent_is_overlapped(struct lu_extent *e1,
481 struct lu_extent *e2)
483 return e1->e_start < e2->e_end && e2->e_start < e1->e_end;
486 enum lov_comp_md_entry_flags {
487 LCME_FL_PRIMARY = 0x00000001, /* Not used */
488 LCME_FL_STALE = 0x00000002, /* Not used */
489 LCME_FL_OFFLINE = 0x00000004, /* Not used */
490 LCME_FL_PREFERRED = 0x00000008, /* Not used */
491 LCME_FL_INIT = 0x00000010, /* instantiated */
494 #define LCME_KNOWN_FLAGS LCME_FL_INIT
496 /* lcme_id can be specified as certain flags, and the the first
497 * bit of lcme_id is used to indicate that the ID is representing
498 * certain LCME_FL_* but not a real ID. Which implies we can have
499 * at most 31 flags (see LCME_FL_XXX). */
502 LCME_ID_MAX = 0x7FFFFFFF,
503 LCME_ID_ALL = 0xFFFFFFFF,
504 LCME_ID_NONE = 0x80000000
507 #define LCME_ID_MASK LCME_ID_MAX
509 struct lov_comp_md_entry_v1 {
510 __u32 lcme_id; /* unique id of component */
511 __u32 lcme_flags; /* LCME_FL_XXX */
512 struct lu_extent lcme_extent; /* file extent for component */
513 __u32 lcme_offset; /* offset of component blob,
514 start from lov_comp_md_v1 */
515 __u32 lcme_size; /* size of component blob */
516 __u64 lcme_padding[2];
517 } __attribute__((packed));
519 enum lov_comp_md_flags;
521 struct lov_comp_md_v1 {
522 __u32 lcm_magic; /* LOV_USER_MAGIC_COMP_V1 */
523 __u32 lcm_size; /* overall size including this struct */
524 __u32 lcm_layout_gen;
526 __u16 lcm_entry_count;
529 struct lov_comp_md_entry_v1 lcm_entries[0];
530 } __attribute__((packed));
532 static inline __u32 lov_user_md_size(__u16 stripes, __u32 lmm_magic)
534 if (lmm_magic == LOV_USER_MAGIC_V1)
535 return sizeof(struct lov_user_md_v1) +
536 stripes * sizeof(struct lov_user_ost_data_v1);
537 return sizeof(struct lov_user_md_v3) +
538 stripes * sizeof(struct lov_user_ost_data_v1);
541 /* Compile with -D_LARGEFILE64_SOURCE or -D_GNU_SOURCE (or #define) to
542 * use this. It is unsafe to #define those values in this header as it
543 * is possible the application has already #included <sys/stat.h>. */
544 #ifdef HAVE_LOV_USER_MDS_DATA
545 #define lov_user_mds_data lov_user_mds_data_v1
546 struct lov_user_mds_data_v1 {
547 lstat_t lmd_st; /* MDS stat struct */
548 struct lov_user_md_v1 lmd_lmm; /* LOV EA V1 user data */
549 } __attribute__((packed));
551 struct lov_user_mds_data_v3 {
552 lstat_t lmd_st; /* MDS stat struct */
553 struct lov_user_md_v3 lmd_lmm; /* LOV EA V3 user data */
554 } __attribute__((packed));
557 struct lmv_user_mds_data {
558 struct lu_fid lum_fid;
564 LMV_HASH_TYPE_UNKNOWN = 0, /* 0 is reserved for testing purpose */
565 LMV_HASH_TYPE_ALL_CHARS = 1,
566 LMV_HASH_TYPE_FNV_1A_64 = 2,
570 #define LMV_HASH_NAME_ALL_CHARS "all_char"
571 #define LMV_HASH_NAME_FNV_1A_64 "fnv_1a_64"
573 extern char *mdt_hash_name[LMV_HASH_TYPE_MAX];
575 /* Got this according to how get LOV_MAX_STRIPE_COUNT, see above,
576 * (max buffer size - lmv+rpc header) / sizeof(struct lmv_user_mds_data) */
577 #define LMV_MAX_STRIPE_COUNT 2000 /* ((12 * 4096 - 256) / 24) */
578 #define lmv_user_md lmv_user_md_v1
579 struct lmv_user_md_v1 {
580 __u32 lum_magic; /* must be the first field */
581 __u32 lum_stripe_count; /* dirstripe count */
582 __u32 lum_stripe_offset; /* MDT idx for default dirstripe */
583 __u32 lum_hash_type; /* Dir stripe policy */
584 __u32 lum_type; /* LMV type: default or normal */
588 char lum_pool_name[LOV_MAXPOOLNAME + 1];
589 struct lmv_user_mds_data lum_objects[0];
590 } __attribute__((packed));
592 static inline int lmv_user_md_size(int stripes, int lmm_magic)
594 return sizeof(struct lmv_user_md) +
595 stripes * sizeof(struct lmv_user_mds_data);
598 struct ll_recreate_obj {
604 __u64 id; /* holds object id */
605 __u32 generation; /* holds object generation */
606 __u32 f_type; /* holds object type or stripe idx when passing it to
607 * OST for saving into EA. */
615 static inline bool obd_uuid_equals(const struct obd_uuid *u1,
616 const struct obd_uuid *u2)
618 return strcmp((char *)u1->uuid, (char *)u2->uuid) == 0;
621 static inline int obd_uuid_empty(struct obd_uuid *uuid)
623 return uuid->uuid[0] == '\0';
626 static inline void obd_str2uuid(struct obd_uuid *uuid, const char *tmp)
628 strncpy((char *)uuid->uuid, tmp, sizeof(*uuid));
629 uuid->uuid[sizeof(*uuid) - 1] = '\0';
632 /* For printf's only, make sure uuid is terminated */
633 static inline char *obd_uuid2str(const struct obd_uuid *uuid)
638 if (uuid->uuid[sizeof(*uuid) - 1] != '\0') {
639 /* Obviously not safe, but for printfs, no real harm done...
640 we're always null-terminated, even in a race. */
641 static char temp[sizeof(*uuid)];
642 memcpy(temp, uuid->uuid, sizeof(*uuid) - 1);
643 temp[sizeof(*uuid) - 1] = '\0';
646 return (char *)(uuid->uuid);
649 /* Extract fsname from uuid (or target name) of a target
650 e.g. (myfs-OST0007_UUID -> myfs)
651 see also deuuidify. */
652 static inline void obd_uuid2fsname(char *buf, char *uuid, int buflen)
656 strncpy(buf, uuid, buflen - 1);
657 buf[buflen - 1] = '\0';
658 p = strrchr(buf, '-');
663 /* printf display format for Lustre FIDs
664 * usage: printf("file FID is "DFID"\n", PFID(fid)); */
665 #define FID_NOBRACE_LEN 40
666 #define FID_LEN (FID_NOBRACE_LEN + 2)
667 #define DFID_NOBRACE "%#llx:0x%x:0x%x"
668 #define DFID "["DFID_NOBRACE"]"
669 #define PFID(fid) (unsigned long long)(fid)->f_seq, (fid)->f_oid, (fid)->f_ver
671 /* scanf input parse format for fids in DFID_NOBRACE format
672 * Need to strip '[' from DFID format first or use "["SFID"]" at caller.
673 * usage: sscanf(fidstr, SFID, RFID(&fid)); */
674 #define SFID "0x%llx:0x%x:0x%x"
675 #define RFID(fid) &((fid)->f_seq), &((fid)->f_oid), &((fid)->f_ver)
677 /********* Quotas **********/
679 #define LUSTRE_QUOTABLOCK_BITS 10
680 #define LUSTRE_QUOTABLOCK_SIZE (1 << LUSTRE_QUOTABLOCK_BITS)
682 static inline __u64 lustre_stoqb(size_t space)
684 return (space + LUSTRE_QUOTABLOCK_SIZE - 1) >> LUSTRE_QUOTABLOCK_BITS;
687 #define Q_QUOTACHECK 0x800100 /* deprecated as of 2.4 */
688 #define Q_INITQUOTA 0x800101 /* deprecated as of 2.4 */
689 #define Q_GETOINFO 0x800102 /* get obd quota info */
690 #define Q_GETOQUOTA 0x800103 /* get obd quotas */
691 #define Q_FINVALIDATE 0x800104 /* deprecated as of 2.4 */
693 /* these must be explicitly translated into linux Q_* in ll_dir_ioctl */
694 #define LUSTRE_Q_QUOTAON 0x800002 /* deprecated as of 2.4 */
695 #define LUSTRE_Q_QUOTAOFF 0x800003 /* deprecated as of 2.4 */
696 #define LUSTRE_Q_GETINFO 0x800005 /* get information about quota files */
697 #define LUSTRE_Q_SETINFO 0x800006 /* set information about quota files */
698 #define LUSTRE_Q_GETQUOTA 0x800007 /* get user quota structure */
699 #define LUSTRE_Q_SETQUOTA 0x800008 /* set user quota structure */
700 /* lustre-specific control commands */
701 #define LUSTRE_Q_INVALIDATE 0x80000b /* deprecated as of 2.4 */
702 #define LUSTRE_Q_FINVALIDATE 0x80000c /* deprecated as of 2.4 */
704 #define UGQUOTA 2 /* set both USRQUOTA and GRPQUOTA */
706 #define IDENTITY_DOWNCALL_MAGIC 0x6d6dd629
709 #define N_PERMS_MAX 64
711 struct perm_downcall_data {
717 struct identity_downcall_data {
724 struct perm_downcall_data idd_perms[N_PERMS_MAX];
728 #ifdef NEED_QUOTA_DEFS
730 #define QIF_BLIMITS 1
732 #define QIF_ILIMITS 4
736 #define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
737 #define QIF_USAGE (QIF_SPACE | QIF_INODES)
738 #define QIF_TIMES (QIF_BTIME | QIF_ITIME)
739 #define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
742 #endif /* !__KERNEL__ */
744 /* lustre volatile file support
745 * file name header: .^L^S^T^R:volatile"
747 #define LUSTRE_VOLATILE_HDR ".\x0c\x13\x14\x12:VOLATILE"
748 #define LUSTRE_VOLATILE_HDR_LEN 14
750 typedef enum lustre_quota_version {
752 } lustre_quota_version_t;
754 /* XXX: same as if_dqinfo struct in kernel */
762 /* XXX: same as if_dqblk struct in kernel, plus one padding */
764 __u64 dqb_bhardlimit;
765 __u64 dqb_bsoftlimit;
767 __u64 dqb_ihardlimit;
768 __u64 dqb_isoftlimit;
790 struct obd_dqinfo qc_dqinfo;
791 struct obd_dqblk qc_dqblk;
793 struct obd_uuid obd_uuid;
796 /* swap layout flags */
797 #define SWAP_LAYOUTS_CHECK_DV1 (1 << 0)
798 #define SWAP_LAYOUTS_CHECK_DV2 (1 << 1)
799 #define SWAP_LAYOUTS_KEEP_MTIME (1 << 2)
800 #define SWAP_LAYOUTS_KEEP_ATIME (1 << 3)
801 #define SWAP_LAYOUTS_CLOSE (1 << 4)
803 /* Swap XATTR_NAME_HSM as well, only on the MDT so far */
804 #define SWAP_LAYOUTS_MDS_HSM (1 << 31)
805 struct lustre_swap_layouts {
814 /********* Changelogs **********/
815 /** Changelog record types */
816 enum changelog_rec_type {
818 CL_CREATE = 1, /* namespace */
819 CL_MKDIR = 2, /* namespace */
820 CL_HARDLINK = 3, /* namespace */
821 CL_SOFTLINK = 4, /* namespace */
822 CL_MKNOD = 5, /* namespace */
823 CL_UNLINK = 6, /* namespace */
824 CL_RMDIR = 7, /* namespace */
825 CL_RENAME = 8, /* namespace */
826 CL_EXT = 9, /* namespace extended record (2nd half of rename) */
827 CL_OPEN = 10, /* not currently used */
828 CL_CLOSE = 11, /* may be written to log only with mtime change */
829 CL_LAYOUT = 12, /* file layout/striping modified */
833 CL_HSM = 16, /* HSM specific events, see flags */
834 CL_MTIME = 17, /* Precedence: setattr > mtime > ctime > atime */
841 static inline const char *changelog_type2str(int type) {
842 static const char *changelog_str[] = {
843 "MARK", "CREAT", "MKDIR", "HLINK", "SLINK", "MKNOD", "UNLNK",
844 "RMDIR", "RENME", "RNMTO", "OPEN", "CLOSE", "LYOUT", "TRUNC",
845 "SATTR", "XATTR", "HSM", "MTIME", "CTIME", "ATIME", "MIGRT"
848 if (type >= 0 && type < CL_LAST)
849 return changelog_str[type];
853 /* per-record flags */
854 #define CLF_FLAGSHIFT 12
855 #define CLF_FLAGMASK ((1U << CLF_FLAGSHIFT) - 1)
856 #define CLF_VERMASK (~CLF_FLAGMASK)
857 enum changelog_rec_flags {
858 CLF_VERSION = 0x1000,
861 CLF_SUPPORTED = CLF_VERSION | CLF_RENAME | CLF_JOBID
865 /* Anything under the flagmask may be per-type (if desired) */
866 /* Flags for unlink */
867 #define CLF_UNLINK_LAST 0x0001 /* Unlink of last hardlink */
868 #define CLF_UNLINK_HSM_EXISTS 0x0002 /* File has something in HSM */
869 /* HSM cleaning needed */
870 /* Flags for rename */
871 #define CLF_RENAME_LAST 0x0001 /* rename unlink last hardlink
873 #define CLF_RENAME_LAST_EXISTS 0x0002 /* rename unlink last hardlink of target
874 * has an archive in backend */
877 /* 12b used (from high weight to low weight):
882 #define CLF_HSM_ERR_L 0 /* HSM return code, 7 bits */
883 #define CLF_HSM_ERR_H 6
884 #define CLF_HSM_EVENT_L 7 /* HSM event, 3 bits, see enum hsm_event */
885 #define CLF_HSM_EVENT_H 9
886 #define CLF_HSM_FLAG_L 10 /* HSM flags, 2 bits, 1 used, 1 spare */
887 #define CLF_HSM_FLAG_H 11
888 #define CLF_HSM_SPARE_L 12 /* 4 spare bits */
889 #define CLF_HSM_SPARE_H 15
890 #define CLF_HSM_LAST 15
892 /* Remove bits higher than _h, then extract the value
893 * between _h and _l by shifting lower weigth to bit 0. */
894 #define CLF_GET_BITS(_b, _h, _l) (((_b << (CLF_HSM_LAST - _h)) & 0xFFFF) \
895 >> (CLF_HSM_LAST - _h + _l))
897 #define CLF_HSM_SUCCESS 0x00
898 #define CLF_HSM_MAXERROR 0x7E
899 #define CLF_HSM_ERROVERFLOW 0x7F
901 #define CLF_HSM_DIRTY 1 /* file is dirty after HSM request end */
903 /* 3 bits field => 8 values allowed */
915 static inline enum hsm_event hsm_get_cl_event(__u16 flags)
917 return (enum hsm_event)CLF_GET_BITS(flags, CLF_HSM_EVENT_H,
921 static inline void hsm_set_cl_event(int *flags, enum hsm_event he)
923 *flags |= (he << CLF_HSM_EVENT_L);
926 static inline __u16 hsm_get_cl_flags(int flags)
928 return CLF_GET_BITS(flags, CLF_HSM_FLAG_H, CLF_HSM_FLAG_L);
931 static inline void hsm_set_cl_flags(int *flags, int bits)
933 *flags |= (bits << CLF_HSM_FLAG_L);
936 static inline int hsm_get_cl_error(int flags)
938 return CLF_GET_BITS(flags, CLF_HSM_ERR_H, CLF_HSM_ERR_L);
941 static inline void hsm_set_cl_error(int *flags, int error)
943 *flags |= (error << CLF_HSM_ERR_L);
946 enum changelog_send_flag {
947 /* Not yet implemented */
948 CHANGELOG_FLAG_FOLLOW = 0x01,
949 /* Blocking IO makes sense in case of slow user parsing of the records,
950 * but it also prevents us from cleaning up if the records are not
952 CHANGELOG_FLAG_BLOCK = 0x02,
953 /* Pack jobid into the changelog records if available. */
954 CHANGELOG_FLAG_JOBID = 0x04,
957 #define CR_MAXSIZE cfs_size_round(2 * NAME_MAX + 2 + \
958 changelog_rec_offset(CLF_SUPPORTED))
960 /* 31 usable bytes string + null terminator. */
961 #define LUSTRE_JOBID_SIZE 32
963 /* This is the minimal changelog record. It can contain extensions
964 * such as rename fields or process jobid. Its exact content is described
967 * Extensions are packed in the same order as their corresponding flags.
969 struct changelog_rec {
971 __u16 cr_flags; /**< \a changelog_rec_flags */
972 __u32 cr_type; /**< \a changelog_rec_type */
973 __u64 cr_index; /**< changelog record number */
974 __u64 cr_prev; /**< last index for this target fid */
977 lustre_fid cr_tfid; /**< target fid */
978 __u32 cr_markerflags; /**< CL_MARK flags */
980 lustre_fid cr_pfid; /**< parent fid */
983 /* Changelog extension for RENAME. */
984 struct changelog_ext_rename {
985 lustre_fid cr_sfid; /**< source fid, or zero */
986 lustre_fid cr_spfid; /**< source parent fid, or zero */
989 /* Changelog extension to include JOBID. */
990 struct changelog_ext_jobid {
991 char cr_jobid[LUSTRE_JOBID_SIZE]; /**< zero-terminated string. */
995 static inline size_t changelog_rec_offset(enum changelog_rec_flags crf)
997 size_t size = sizeof(struct changelog_rec);
999 if (crf & CLF_RENAME)
1000 size += sizeof(struct changelog_ext_rename);
1002 if (crf & CLF_JOBID)
1003 size += sizeof(struct changelog_ext_jobid);
1008 static inline size_t changelog_rec_size(const struct changelog_rec *rec)
1010 return changelog_rec_offset(rec->cr_flags);
1013 static inline size_t changelog_rec_varsize(const struct changelog_rec *rec)
1015 return changelog_rec_size(rec) - sizeof(*rec) + rec->cr_namelen;
1019 struct changelog_ext_rename *changelog_rec_rename(const struct changelog_rec *rec)
1021 enum changelog_rec_flags crf = rec->cr_flags & CLF_VERSION;
1023 return (struct changelog_ext_rename *)((char *)rec +
1024 changelog_rec_offset(crf));
1027 /* The jobid follows the rename extension, if present */
1029 struct changelog_ext_jobid *changelog_rec_jobid(const struct changelog_rec *rec)
1031 enum changelog_rec_flags crf = rec->cr_flags &
1032 (CLF_VERSION | CLF_RENAME);
1034 return (struct changelog_ext_jobid *)((char *)rec +
1035 changelog_rec_offset(crf));
1038 /* The name follows the rename and jobid extensions, if present */
1039 static inline char *changelog_rec_name(const struct changelog_rec *rec)
1041 return (char *)rec + changelog_rec_offset(rec->cr_flags &
1045 static inline size_t changelog_rec_snamelen(const struct changelog_rec *rec)
1047 return rec->cr_namelen - strlen(changelog_rec_name(rec)) - 1;
1050 static inline char *changelog_rec_sname(const struct changelog_rec *rec)
1052 char *cr_name = changelog_rec_name(rec);
1054 return cr_name + strlen(cr_name) + 1;
1058 * Remap a record to the desired format as specified by the crf flags.
1059 * The record must be big enough to contain the final remapped version.
1060 * Superfluous extension fields are removed and missing ones are added
1061 * and zeroed. The flags of the record are updated accordingly.
1063 * The jobid and rename extensions can be added to a record, to match the
1064 * format an application expects, typically. In this case, the newly added
1065 * fields will be zeroed.
1066 * The Jobid field can be removed, to guarantee compatibility with older
1067 * clients that don't expect this field in the records they process.
1069 * The following assumptions are being made:
1070 * - CLF_RENAME will not be removed
1071 * - CLF_JOBID will not be added without CLF_RENAME being added too
1073 * @param[in,out] rec The record to remap.
1074 * @param[in] crf_wanted Flags describing the desired extensions.
1076 static inline void changelog_remap_rec(struct changelog_rec *rec,
1077 enum changelog_rec_flags crf_wanted)
1082 crf_wanted &= CLF_SUPPORTED;
1084 if ((rec->cr_flags & CLF_SUPPORTED) == crf_wanted)
1087 /* First move the variable-length name field */
1088 memmove((char *)rec + changelog_rec_offset(crf_wanted),
1089 changelog_rec_name(rec), rec->cr_namelen);
1091 /* Locations of jobid and rename extensions in the remapped record */
1092 jid_mov = (char *)rec +
1093 changelog_rec_offset(crf_wanted & ~CLF_JOBID);
1094 rnm_mov = (char *)rec +
1095 changelog_rec_offset(crf_wanted & ~(CLF_JOBID | CLF_RENAME));
1097 /* Move the extension fields to the desired positions */
1098 if ((crf_wanted & CLF_JOBID) && (rec->cr_flags & CLF_JOBID))
1099 memmove(jid_mov, changelog_rec_jobid(rec),
1100 sizeof(struct changelog_ext_jobid));
1102 if ((crf_wanted & CLF_RENAME) && (rec->cr_flags & CLF_RENAME))
1103 memmove(rnm_mov, changelog_rec_rename(rec),
1104 sizeof(struct changelog_ext_rename));
1106 /* Clear newly added fields */
1107 if ((crf_wanted & CLF_JOBID) && !(rec->cr_flags & CLF_JOBID))
1108 memset(jid_mov, 0, sizeof(struct changelog_ext_jobid));
1110 if ((crf_wanted & CLF_RENAME) && !(rec->cr_flags & CLF_RENAME))
1111 memset(rnm_mov, 0, sizeof(struct changelog_ext_rename));
1113 /* Update the record's flags accordingly */
1114 rec->cr_flags = (rec->cr_flags & CLF_FLAGMASK) | crf_wanted;
1117 struct ioc_changelog {
1124 enum changelog_message_type {
1125 CL_RECORD = 10, /* message is a changelog_rec */
1126 CL_EOF = 11, /* at end of current changelog */
1129 /********* Misc **********/
1131 struct ioc_data_version {
1133 __u64 idv_flags; /* See LL_DV_xxx */
1135 #define LL_DV_RD_FLUSH (1 << 0) /* Flush dirty pages from clients */
1136 #define LL_DV_WR_FLUSH (1 << 1) /* Flush all caching pages from clients */
1139 #define offsetof(typ, memb) ((unsigned long)((char *)&(((typ *)0)->memb)))
1142 #define dot_lustre_name ".lustre"
1145 /********* HSM **********/
1147 /** HSM per-file state
1148 * See HSM_FLAGS below.
1151 HS_NONE = 0x00000000,
1152 HS_EXISTS = 0x00000001,
1153 HS_DIRTY = 0x00000002,
1154 HS_RELEASED = 0x00000004,
1155 HS_ARCHIVED = 0x00000008,
1156 HS_NORELEASE = 0x00000010,
1157 HS_NOARCHIVE = 0x00000020,
1158 HS_LOST = 0x00000040,
1161 /* HSM user-setable flags. */
1162 #define HSM_USER_MASK (HS_NORELEASE | HS_NOARCHIVE | HS_DIRTY)
1164 /* Other HSM flags. */
1165 #define HSM_STATUS_MASK (HS_EXISTS | HS_LOST | HS_RELEASED | HS_ARCHIVED)
1168 * All HSM-related possible flags that could be applied to a file.
1169 * This should be kept in sync with hsm_states.
1171 #define HSM_FLAGS_MASK (HSM_USER_MASK | HSM_STATUS_MASK)
1174 * HSMÂ request progress state
1176 enum hsm_progress_states {
1183 static inline const char *hsm_progress_state2name(enum hsm_progress_states s)
1186 case HPS_WAITING: return "waiting";
1187 case HPS_RUNNING: return "running";
1188 case HPS_DONE: return "done";
1189 default: return "unknown";
1196 } __attribute__((packed));
1199 * Current HSM states of a Lustre file.
1201 * This structure purpose is to be sent to user-space mainly. It describes the
1202 * current HSM flags and in-progress action.
1204 struct hsm_user_state {
1205 /** Current HSM states, from enum hsm_states. */
1207 __u32 hus_archive_id;
1208 /** The current undergoing action, if there is one */
1209 __u32 hus_in_progress_state;
1210 __u32 hus_in_progress_action;
1211 struct hsm_extent hus_in_progress_location;
1212 char hus_extended_info[];
1215 struct hsm_state_set_ioc {
1216 struct lu_fid hssi_fid;
1218 __u64 hssi_clearmask;
1222 * This structure describes the current in-progress action for a file.
1223 * it is retuned to user space and send over the wire
1225 struct hsm_current_action {
1226 /** The current undergoing action, if there is one */
1227 /* state is one of hsm_progress_states */
1229 /* action is one of hsm_user_action */
1231 struct hsm_extent hca_location;
1234 /***** HSM user requests ******/
1235 /* User-generated (lfs/ioctl) request types */
1236 enum hsm_user_action {
1237 HUA_NONE = 1, /* no action (noop) */
1238 HUA_ARCHIVE = 10, /* copy to hsm */
1239 HUA_RESTORE = 11, /* prestage */
1240 HUA_RELEASE = 12, /* drop ost objects */
1241 HUA_REMOVE = 13, /* remove from archive */
1242 HUA_CANCEL = 14 /* cancel a request */
1245 static inline const char *hsm_user_action2name(enum hsm_user_action a)
1248 case HUA_NONE: return "NOOP";
1249 case HUA_ARCHIVE: return "ARCHIVE";
1250 case HUA_RESTORE: return "RESTORE";
1251 case HUA_RELEASE: return "RELEASE";
1252 case HUA_REMOVE: return "REMOVE";
1253 case HUA_CANCEL: return "CANCEL";
1254 default: return "UNKNOWN";
1259 * List of hr_flags (bit field)
1261 #define HSM_FORCE_ACTION 0x0001
1262 /* used by CT, cannot be set by user */
1263 #define HSM_GHOST_COPY 0x0002
1266 * Contains all the fixed part of struct hsm_user_request.
1269 struct hsm_request {
1270 __u32 hr_action; /* enum hsm_user_action */
1271 __u32 hr_archive_id; /* archive id, used only with HUA_ARCHIVE */
1272 __u64 hr_flags; /* request flags */
1273 __u32 hr_itemcount; /* item count in hur_user_item vector */
1277 struct hsm_user_item {
1279 struct hsm_extent hui_extent;
1280 } __attribute__((packed));
1282 struct hsm_user_request {
1283 struct hsm_request hur_request;
1284 struct hsm_user_item hur_user_item[0];
1285 /* extra data blob at end of struct (after all
1286 * hur_user_items), only use helpers to access it
1288 } __attribute__((packed));
1290 /** Return pointer to data field in a hsm user request */
1291 static inline void *hur_data(struct hsm_user_request *hur)
1293 return &(hur->hur_user_item[hur->hur_request.hr_itemcount]);
1297 * Compute the current length of the provided hsm_user_request. This returns -1
1298 * instead of an errno because ssize_t is defined to be only [ -1, SSIZE_MAX ]
1300 * return -1 on bounds check error.
1302 static inline ssize_t hur_len(struct hsm_user_request *hur)
1306 /* can't overflow a __u64 since hr_itemcount is only __u32 */
1307 size = offsetof(struct hsm_user_request, hur_user_item[0]) +
1308 (__u64)hur->hur_request.hr_itemcount *
1309 sizeof(hur->hur_user_item[0]) + hur->hur_request.hr_data_len;
1311 if (size != (ssize_t)size)
1317 /****** HSM RPCs to copytool *****/
1318 /* Message types the copytool may receive */
1319 enum hsm_message_type {
1320 HMT_ACTION_LIST = 100, /* message is a hsm_action_list */
1323 /* Actions the copytool may be instructed to take for a given action_item */
1324 enum hsm_copytool_action {
1325 HSMA_NONE = 10, /* no action */
1326 HSMA_ARCHIVE = 20, /* arbitrary offset */
1332 static inline const char *hsm_copytool_action2name(enum hsm_copytool_action a)
1335 case HSMA_NONE: return "NOOP";
1336 case HSMA_ARCHIVE: return "ARCHIVE";
1337 case HSMA_RESTORE: return "RESTORE";
1338 case HSMA_REMOVE: return "REMOVE";
1339 case HSMA_CANCEL: return "CANCEL";
1340 default: return "UNKNOWN";
1344 /* Copytool item action description */
1345 struct hsm_action_item {
1346 __u32 hai_len; /* valid size of this struct */
1347 __u32 hai_action; /* hsm_copytool_action, but use known size */
1348 lustre_fid hai_fid; /* Lustre FID to operate on */
1349 lustre_fid hai_dfid; /* fid used for data access */
1350 struct hsm_extent hai_extent; /* byte range to operate on */
1351 __u64 hai_cookie; /* action cookie from coordinator */
1352 __u64 hai_gid; /* grouplock id */
1353 char hai_data[0]; /* variable length */
1354 } __attribute__((packed));
1357 * helper function which print in hexa the first bytes of
1360 * \param hai [IN] record to print
1361 * \param buffer [IN,OUT] buffer to write the hex string to
1362 * \param len [IN] max buffer length
1366 static inline char *hai_dump_data_field(const struct hsm_action_item *hai,
1367 char *buffer, size_t len)
1374 data_len = hai->hai_len - sizeof(*hai);
1375 for (i = 0; (i < data_len) && (len > 2); i++) {
1376 snprintf(ptr, 3, "%02X", (unsigned char)hai->hai_data[i]);
1386 /* Copytool action list */
1387 #define HAL_VERSION 1
1388 #define HAL_MAXSIZE LNET_MTU /* bytes, used in userspace only */
1389 struct hsm_action_list {
1391 __u32 hal_count; /* number of hai's to follow */
1392 __u64 hal_compound_id; /* returned by coordinator */
1394 __u32 hal_archive_id; /* which archive backend */
1396 char hal_fsname[0]; /* null-terminated */
1397 /* struct hsm_action_item[hal_count] follows, aligned on 8-byte
1398 boundaries. See hai_zero */
1399 } __attribute__((packed));
1401 #ifndef HAVE_CFS_SIZE_ROUND
1402 static inline int cfs_size_round (int val)
1404 return (val + 7) & (~0x7);
1406 #define HAVE_CFS_SIZE_ROUND
1409 /* Return pointer to first hai in action list */
1410 static inline struct hsm_action_item *hai_first(struct hsm_action_list *hal)
1412 return (struct hsm_action_item *)(hal->hal_fsname +
1413 cfs_size_round(strlen(hal-> \
1417 /* Return pointer to next hai */
1418 static inline struct hsm_action_item * hai_next(struct hsm_action_item *hai)
1420 return (struct hsm_action_item *)((char *)hai +
1421 cfs_size_round(hai->hai_len));
1424 /* Return size of an hsm_action_list */
1425 static inline size_t hal_size(struct hsm_action_list *hal)
1429 struct hsm_action_item *hai;
1431 sz = sizeof(*hal) + cfs_size_round(strlen(hal->hal_fsname) + 1);
1432 hai = hai_first(hal);
1433 for (i = 0; i < hal->hal_count ; i++, hai = hai_next(hai))
1434 sz += cfs_size_round(hai->hai_len);
1440 * describe the attributes to be set on imported file
1442 struct hsm_user_import {
1451 __u32 hui_archive_id;
1454 /* Copytool progress reporting */
1455 #define HP_FLAG_COMPLETED 0x01
1456 #define HP_FLAG_RETRY 0x02
1458 struct hsm_progress {
1461 struct hsm_extent hp_extent;
1463 __u16 hp_errval; /* positive val */
1468 __u64 hc_data_version;
1470 __u16 hc_errval; /* positive val */
1472 struct hsm_action_item hc_hai;
1476 enum llapi_json_types {
1477 LLAPI_JSON_INTEGER = 1,
1483 struct llapi_json_item {
1492 struct llapi_json_item *lji_next;
1495 struct llapi_json_item_list {
1496 int ljil_item_count;
1497 struct llapi_json_item *ljil_items;
1500 enum lu_ladvise_type {
1501 LU_LADVISE_INVALID = 0,
1502 LU_LADVISE_WILLREAD = 1,
1503 LU_LADVISE_DONTNEED = 2,
1506 #define LU_LADVISE_NAMES { \
1507 [LU_LADVISE_WILLREAD] = "willread", \
1508 [LU_LADVISE_DONTNEED] = "dontneed", \
1511 /* This is the userspace argument for ladvise. It is currently the same as
1512 * what goes on the wire (struct lu_ladvise), but is defined separately as we
1513 * may need info which is only used locally. */
1514 struct llapi_lu_ladvise {
1515 __u16 lla_advice; /* advice type */
1516 __u16 lla_value1; /* values for different advice types */
1518 __u64 lla_start; /* first byte of extent for advice */
1519 __u64 lla_end; /* last byte of extent for advice */
1525 LF_ASYNC = 0x00000001,
1528 #define LADVISE_MAGIC 0x1ADF1CE0
1529 #define LF_MASK LF_ASYNC
1531 /* This is the userspace argument for ladvise, corresponds to ladvise_hdr which
1532 * is used on the wire. It is defined separately as we may need info which is
1533 * only used locally. */
1534 struct llapi_ladvise_hdr {
1535 __u32 lah_magic; /* LADVISE_MAGIC */
1536 __u32 lah_count; /* number of advices */
1537 __u64 lah_flags; /* from enum ladvise_flag */
1538 __u32 lah_value1; /* unused */
1539 __u32 lah_value2; /* unused */
1540 __u64 lah_value3; /* unused */
1541 struct llapi_lu_ladvise lah_advise[0]; /* advices in this header */
1544 #define LAH_COUNT_MAX (1024)
1548 SK_CRYPT_INVALID = -1,
1550 SK_CRYPT_AES256_CTR = 1,
1554 struct sk_crypt_type {
1556 unsigned int cht_key;
1557 unsigned int cht_bytes;
1560 /** @} lustreuser */
1561 #endif /* _LUSTRE_USER_H */