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, 2015, 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
49 #include <linux/types.h>
52 # include <linux/quota.h>
53 # include <linux/string.h> /* snprintf() */
54 # include <linux/version.h>
55 #else /* !__KERNEL__ */
56 # define NEED_QUOTA_DEFS
59 # include <stdio.h> /* snprintf() */
61 # include <sys/quota.h>
62 # include <sys/stat.h>
63 #endif /* __KERNEL__ */
64 #include <lustre/ll_fiemap.h>
66 #if defined(__x86_64__) || defined(__ia64__) || defined(__ppc64__) || \
67 defined(__craynv) || defined(__mips64__) || defined(__powerpc64__) || \
69 typedef struct stat lstat_t;
70 # define lstat_f lstat
71 # define fstat_f fstat
72 # define fstatat_f fstatat
73 # define HAVE_LOV_USER_MDS_DATA
74 #elif defined(__USE_LARGEFILE64) || defined(__KERNEL__)
75 typedef struct stat64 lstat_t;
76 # define lstat_f lstat64
77 # define fstat_f fstat64
78 # define fstatat_f fstatat64
79 # define HAVE_LOV_USER_MDS_DATA
82 #define LUSTRE_EOF 0xffffffffffffffffULL
85 #define LL_SUPER_MAGIC 0x0BD00BD0
87 #ifndef FSFILT_IOC_GETFLAGS
88 #define FSFILT_IOC_GETFLAGS _IOR('f', 1, long)
89 #define FSFILT_IOC_SETFLAGS _IOW('f', 2, long)
90 #define FSFILT_IOC_GETVERSION _IOR('f', 3, long)
91 #define FSFILT_IOC_SETVERSION _IOW('f', 4, long)
92 #define FSFILT_IOC_GETVERSION_OLD _IOR('v', 1, long)
93 #define FSFILT_IOC_SETVERSION_OLD _IOW('v', 2, long)
96 /* FIEMAP flags supported by Lustre */
97 #define LUSTRE_FIEMAP_FLAGS_COMPAT (FIEMAP_FLAG_SYNC | FIEMAP_FLAG_DEVICE_ORDER)
99 enum obd_statfs_state {
100 OS_STATE_DEGRADED = 0x00000001, /**< RAID degraded/rebuilding */
101 OS_STATE_READONLY = 0x00000002, /**< filesystem is read-only */
102 OS_STATE_ENOSPC = 0x00000020, /**< not enough free space */
103 OS_STATE_ENOINO = 0x00000040, /**< not enough inodes */
117 __u32 os_state; /**< obd_statfs_state OS_STATE_* flag */
118 __u32 os_fprecreated; /* objs available now to the caller */
119 /* used in QoS code to find preferred
134 * FID is a cluster-wide unique identifier of a file or an object (stripe).
135 * FIDs are never reused.
139 * FID sequence. Sequence is a unit of migration: all files (objects)
140 * with FIDs from a given sequence are stored on the same server.
141 * Lustre should support 2^64 objects, so even if each sequence
142 * has only a single object we can still enumerate 2^64 objects.
145 /* FID number within sequence. */
148 * FID version, used to distinguish different versions (in the sense
149 * of snapshots, etc.) of the same file system object. Not currently
155 static inline bool fid_is_zero(const struct lu_fid *fid)
157 return fid->f_seq == 0 && fid->f_oid == 0;
160 /* Currently, the filter_fid::ff_parent::f_ver is not the real parent
161 * MDT-object's FID::f_ver, instead it is the OST-object index in its
162 * parent MDT-object's layout EA. */
163 #define f_stripe_idx f_ver
166 struct lu_fid ff_parent; /* ff_parent.f_ver == file stripe number */
169 /* keep this one for compatibility */
170 struct filter_fid_old {
171 struct lu_fid ff_parent;
176 /* Userspace should treat lu_fid as opaque, and only use the following methods
177 * to print or parse them. Other functions (e.g. compare, swab) could be moved
178 * here from lustre_idl.h if needed. */
179 typedef struct lu_fid lustre_fid;
182 * Following struct for object attributes, that will be kept inode's EA.
183 * Introduced in 2.0 release (please see b15993, for details)
184 * Added to all objects since Lustre 2.4 as contains self FID
186 struct lustre_mdt_attrs {
188 * Bitfield for supported data in this structure. From enum lma_compat.
189 * lma_self_fid and lma_flags are always available.
193 * Per-file incompat feature list. Lustre version should support all
194 * flags set in this field. The supported feature mask is available in
198 /** FID of this inode */
199 struct lu_fid lma_self_fid;
203 * Prior to 2.4, the LMA structure also included SOM attributes which has since
204 * been moved to a dedicated xattr
205 * lma_flags was also removed because of lma_compat/incompat fields.
207 #define LMA_OLD_SIZE (sizeof(struct lustre_mdt_attrs) + 5 * sizeof(__u64))
210 * OST object IDentifier.
218 struct lu_fid oi_fid;
222 #define DOSTID "%#llx:%llu"
223 #define POSTID(oi) ((unsigned long long)ostid_seq(oi)), \
224 ((unsigned long long)ostid_id(oi))
226 struct ll_futimes_3 {
228 __u64 lfu_atime_nsec;
230 __u64 lfu_mtime_nsec;
232 __u64 lfu_ctime_nsec;
236 * The ioctl naming rules:
237 * LL_* - works on the currently opened filehandle instead of parent dir
238 * *_OBD_* - gets data for both OSC or MDC (LOV, LMV indirectly)
239 * *_MDC_* - gets/sets data related to MDC
240 * *_LOV_* - gets/sets data related to OSC/LOV
241 * *FILE* - called on parent dir and passes in a filename
242 * *STRIPE* - set/get lov_user_md
243 * *INFO - set/get lov_user_mds_data
245 /* lustre_ioctl.h 101-150 */
246 #define LL_IOC_GETFLAGS _IOR ('f', 151, long)
247 #define LL_IOC_SETFLAGS _IOW ('f', 152, long)
248 #define LL_IOC_CLRFLAGS _IOW ('f', 153, long)
249 #define LL_IOC_LOV_SETSTRIPE _IOW ('f', 154, long)
250 #define LL_IOC_LOV_GETSTRIPE _IOW ('f', 155, long)
251 #define LL_IOC_LOV_SETEA _IOW ('f', 156, long)
252 /* LL_IOC_RECREATE_OBJ 157 obsolete */
253 /* LL_IOC_RECREATE_FID 157 obsolete */
254 #define LL_IOC_GROUP_LOCK _IOW ('f', 158, long)
255 #define LL_IOC_GROUP_UNLOCK _IOW ('f', 159, long)
256 /* LL_IOC_QUOTACHECK 160 OBD_IOC_QUOTACHECK */
257 /* LL_IOC_POLL_QUOTACHECK 161 OBD_IOC_POLL_QUOTACHECK */
258 /* LL_IOC_QUOTACTL 162 OBD_IOC_QUOTACTL */
259 #define IOC_OBD_STATFS _IOWR('f', 164, struct obd_statfs *)
260 /* IOC_LOV_GETINFO 165 obsolete */
261 #define LL_IOC_FLUSHCTX _IOW ('f', 166, long)
262 /* LL_IOC_RMTACL 167 obsolete */
263 #define LL_IOC_GETOBDCOUNT _IOR ('f', 168, long)
264 #define LL_IOC_LLOOP_ATTACH _IOWR('f', 169, long)
265 #define LL_IOC_LLOOP_DETACH _IOWR('f', 170, long)
266 #define LL_IOC_LLOOP_INFO _IOWR('f', 171, struct lu_fid)
267 #define LL_IOC_LLOOP_DETACH_BYDEV _IOWR('f', 172, long)
268 #define LL_IOC_PATH2FID _IOR ('f', 173, long)
269 #define LL_IOC_GET_CONNECT_FLAGS _IOWR('f', 174, __u64 *)
270 #define LL_IOC_GET_MDTIDX _IOR ('f', 175, int)
271 #define LL_IOC_FUTIMES_3 _IOWR('f', 176, struct ll_futimes_3)
272 /* lustre_ioctl.h 177-210 */
273 #define LL_IOC_HSM_STATE_GET _IOR('f', 211, struct hsm_user_state)
274 #define LL_IOC_HSM_STATE_SET _IOW('f', 212, struct hsm_state_set)
275 #define LL_IOC_HSM_CT_START _IOW('f', 213, struct lustre_kernelcomm)
276 #define LL_IOC_HSM_COPY_START _IOW('f', 214, struct hsm_copy *)
277 #define LL_IOC_HSM_COPY_END _IOW('f', 215, struct hsm_copy *)
278 #define LL_IOC_HSM_PROGRESS _IOW('f', 216, struct hsm_user_request)
279 #define LL_IOC_HSM_REQUEST _IOW('f', 217, struct hsm_user_request)
280 #define LL_IOC_DATA_VERSION _IOR('f', 218, struct ioc_data_version)
281 #define LL_IOC_LOV_SWAP_LAYOUTS _IOW('f', 219, \
282 struct lustre_swap_layouts)
283 #define LL_IOC_HSM_ACTION _IOR('f', 220, \
284 struct hsm_current_action)
285 /* lustre_ioctl.h 221-232 */
286 #define LL_IOC_LMV_SETSTRIPE _IOWR('f', 240, struct lmv_user_md)
287 #define LL_IOC_LMV_GETSTRIPE _IOWR('f', 241, struct lmv_user_md)
288 #define LL_IOC_REMOVE_ENTRY _IOWR('f', 242, __u64)
289 #define LL_IOC_SET_LEASE _IOWR('f', 243, long)
290 #define LL_IOC_GET_LEASE _IO('f', 244)
291 #define LL_IOC_HSM_IMPORT _IOWR('f', 245, struct hsm_user_import)
292 #define LL_IOC_LMV_SET_DEFAULT_STRIPE _IOWR('f', 246, struct lmv_user_md)
293 #define LL_IOC_MIGRATE _IOR('f', 247, int)
294 #define LL_IOC_FID2MDTIDX _IOWR('f', 248, struct lu_fid)
295 #define LL_IOC_GETPARENT _IOWR('f', 249, struct getparent)
296 #define LL_IOC_LADVISE _IOR('f', 250, struct llapi_lu_ladvise)
298 /* Lease types for use as arg and return of LL_IOC_{GET,SET}_LEASE ioctl. */
300 LL_LEASE_RDLCK = 0x1,
301 LL_LEASE_WRLCK = 0x2,
302 LL_LEASE_UNLCK = 0x4,
305 #define LL_STATFS_LMV 1
306 #define LL_STATFS_LOV 2
307 #define LL_STATFS_NODELAY 4
309 #define IOC_MDC_TYPE 'i'
310 #define IOC_MDC_LOOKUP _IOWR(IOC_MDC_TYPE, 20, struct obd_device *)
311 #define IOC_MDC_GETFILESTRIPE _IOWR(IOC_MDC_TYPE, 21, struct lov_user_md *)
312 #define IOC_MDC_GETFILEINFO _IOWR(IOC_MDC_TYPE, 22, struct lov_user_mds_data *)
313 #define LL_IOC_MDC_GETINFO _IOWR(IOC_MDC_TYPE, 23, struct lov_user_mds_data *)
315 #define MAX_OBD_NAME 128 /* If this changes, a NEW ioctl must be added */
317 /* Define O_LOV_DELAY_CREATE to be a mask that is not useful for regular
318 * files, but are unlikely to be used in practice and are not harmful if
319 * used incorrectly. O_NOCTTY and FASYNC are only meaningful for character
320 * devices and are safe for use on new files. See LU-4209. */
321 /* To be compatible with old statically linked binary we keep the check for
322 * the older 0100000000 flag. This is already removed upstream. LU-812. */
323 #define O_LOV_DELAY_CREATE_1_8 0100000000 /* FMODE_NONOTIFY masked in 2.6.36 */
324 #define O_LOV_DELAY_CREATE_MASK (O_NOCTTY | FASYNC)
325 #define O_LOV_DELAY_CREATE (O_LOV_DELAY_CREATE_1_8 | \
326 O_LOV_DELAY_CREATE_MASK)
328 #define LL_FILE_IGNORE_LOCK 0x00000001
329 #define LL_FILE_GROUP_LOCKED 0x00000002
330 #define LL_FILE_READAHEA 0x00000004
331 #define LL_FILE_LOCKED_DIRECTIO 0x00000008 /* client-side locks with dio */
332 #define LL_FILE_LOCKLESS_IO 0x00000010 /* server-side locks with cio */
334 #define LOV_USER_MAGIC_V1 0x0BD10BD0
335 #define LOV_USER_MAGIC LOV_USER_MAGIC_V1
336 #define LOV_USER_MAGIC_JOIN_V1 0x0BD20BD0
337 #define LOV_USER_MAGIC_V3 0x0BD30BD0
338 /* 0x0BD40BD0 is occupied by LOV_MAGIC_MIGRATE */
339 #define LOV_USER_MAGIC_SPECIFIC 0x0BD50BD0 /* for specific OSTs */
341 #define LMV_USER_MAGIC 0x0CD30CD0 /*default lmv magic*/
343 #define LOV_PATTERN_RAID0 0x001
344 #define LOV_PATTERN_RAID1 0x002
345 #define LOV_PATTERN_FIRST 0x100
346 #define LOV_PATTERN_CMOBD 0x200
348 #define LOV_PATTERN_F_MASK 0xffff0000
349 #define LOV_PATTERN_F_HOLE 0x40000000 /* there is hole in LOV EA */
350 #define LOV_PATTERN_F_RELEASED 0x80000000 /* HSM released file */
352 #define LOV_MAXPOOLNAME 15
353 #define LOV_POOLNAMEF "%.15s"
355 #define LOV_MIN_STRIPE_BITS 16 /* maximum PAGE_SIZE (ia64), power of 2 */
356 #define LOV_MIN_STRIPE_SIZE (1 << LOV_MIN_STRIPE_BITS)
357 #define LOV_MAX_STRIPE_COUNT_OLD 160
358 /* This calculation is crafted so that input of 4096 will result in 160
359 * which in turn is equal to old maximal stripe count.
360 * XXX: In fact this is too simpified for now, what it also need is to get
361 * ea_type argument to clearly know how much space each stripe consumes.
363 * The limit of 12 pages is somewhat arbitrary, but is a reasonably large
364 * allocation that is sufficient for the current generation of systems.
366 * (max buffer size - lov+rpc header) / sizeof(struct lov_ost_data_v1) */
367 #define LOV_MAX_STRIPE_COUNT 2000 /* ((12 * 4096 - 256) / 24) */
368 #define LOV_ALL_STRIPES 0xffff /* only valid for directories */
369 #define LOV_V1_INSANE_STRIPE_COUNT 65532 /* maximum stripe count bz13933 */
371 #define XATTR_LUSTRE_PREFIX "lustre."
372 #define XATTR_LUSTRE_LOV XATTR_LUSTRE_PREFIX"lov"
374 #define lov_user_ost_data lov_user_ost_data_v1
375 struct lov_user_ost_data_v1 { /* per-stripe data structure */
376 struct ost_id l_ost_oi; /* OST object ID */
377 __u32 l_ost_gen; /* generation of this OST index */
378 __u32 l_ost_idx; /* OST index in LOV */
379 } __attribute__((packed));
381 #define lov_user_md lov_user_md_v1
382 struct lov_user_md_v1 { /* LOV EA user data (host-endian) */
383 __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V1 */
384 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
385 struct ost_id lmm_oi; /* LOV object ID */
386 __u32 lmm_stripe_size; /* size of stripe in bytes */
387 __u16 lmm_stripe_count; /* num stripes in use for this object */
389 __u16 lmm_stripe_offset; /* starting stripe offset in
390 * lmm_objects, use when writing */
391 __u16 lmm_layout_gen; /* layout generation number
392 * used when reading */
394 struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
395 } __attribute__((packed, __may_alias__));
397 struct lov_user_md_v3 { /* LOV EA user data (host-endian) */
398 __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V3 */
399 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
400 struct ost_id lmm_oi; /* LOV object ID */
401 __u32 lmm_stripe_size; /* size of stripe in bytes */
402 __u16 lmm_stripe_count; /* num stripes in use for this object */
404 __u16 lmm_stripe_offset; /* starting stripe offset in
405 * lmm_objects, use when writing */
406 __u16 lmm_layout_gen; /* layout generation number
407 * used when reading */
409 char lmm_pool_name[LOV_MAXPOOLNAME + 1]; /* pool name */
410 struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
411 } __attribute__((packed));
413 static inline __u32 lov_user_md_size(__u16 stripes, __u32 lmm_magic)
415 if (lmm_magic == LOV_USER_MAGIC_V1)
416 return sizeof(struct lov_user_md_v1) +
417 stripes * sizeof(struct lov_user_ost_data_v1);
418 return sizeof(struct lov_user_md_v3) +
419 stripes * sizeof(struct lov_user_ost_data_v1);
422 /* Compile with -D_LARGEFILE64_SOURCE or -D_GNU_SOURCE (or #define) to
423 * use this. It is unsafe to #define those values in this header as it
424 * is possible the application has already #included <sys/stat.h>. */
425 #ifdef HAVE_LOV_USER_MDS_DATA
426 #define lov_user_mds_data lov_user_mds_data_v1
427 struct lov_user_mds_data_v1 {
428 lstat_t lmd_st; /* MDS stat struct */
429 struct lov_user_md_v1 lmd_lmm; /* LOV EA V1 user data */
430 } __attribute__((packed));
432 struct lov_user_mds_data_v3 {
433 lstat_t lmd_st; /* MDS stat struct */
434 struct lov_user_md_v3 lmd_lmm; /* LOV EA V3 user data */
435 } __attribute__((packed));
438 struct lmv_user_mds_data {
439 struct lu_fid lum_fid;
445 LMV_HASH_TYPE_UNKNOWN = 0, /* 0 is reserved for testing purpose */
446 LMV_HASH_TYPE_ALL_CHARS = 1,
447 LMV_HASH_TYPE_FNV_1A_64 = 2,
450 #define LMV_HASH_NAME_ALL_CHARS "all_char"
451 #define LMV_HASH_NAME_FNV_1A_64 "fnv_1a_64"
453 /* Got this according to how get LOV_MAX_STRIPE_COUNT, see above,
454 * (max buffer size - lmv+rpc header) / sizeof(struct lmv_user_mds_data) */
455 #define LMV_MAX_STRIPE_COUNT 2000 /* ((12 * 4096 - 256) / 24) */
456 #define lmv_user_md lmv_user_md_v1
457 struct lmv_user_md_v1 {
458 __u32 lum_magic; /* must be the first field */
459 __u32 lum_stripe_count; /* dirstripe count */
460 __u32 lum_stripe_offset; /* MDT idx for default dirstripe */
461 __u32 lum_hash_type; /* Dir stripe policy */
462 __u32 lum_type; /* LMV type: default or normal */
466 char lum_pool_name[LOV_MAXPOOLNAME + 1];
467 struct lmv_user_mds_data lum_objects[0];
468 } __attribute__((packed));
470 static inline int lmv_user_md_size(int stripes, int lmm_magic)
472 return sizeof(struct lmv_user_md) +
473 stripes * sizeof(struct lmv_user_mds_data);
476 struct ll_recreate_obj {
482 __u64 id; /* holds object id */
483 __u32 generation; /* holds object generation */
484 __u32 f_type; /* holds object type or stripe idx when passing it to
485 * OST for saving into EA. */
493 static inline bool obd_uuid_equals(const struct obd_uuid *u1,
494 const struct obd_uuid *u2)
496 return strcmp((char *)u1->uuid, (char *)u2->uuid) == 0;
499 static inline int obd_uuid_empty(struct obd_uuid *uuid)
501 return uuid->uuid[0] == '\0';
504 static inline void obd_str2uuid(struct obd_uuid *uuid, const char *tmp)
506 strncpy((char *)uuid->uuid, tmp, sizeof(*uuid));
507 uuid->uuid[sizeof(*uuid) - 1] = '\0';
510 /* For printf's only, make sure uuid is terminated */
511 static inline char *obd_uuid2str(const struct obd_uuid *uuid)
516 if (uuid->uuid[sizeof(*uuid) - 1] != '\0') {
517 /* Obviously not safe, but for printfs, no real harm done...
518 we're always null-terminated, even in a race. */
519 static char temp[sizeof(*uuid)];
520 memcpy(temp, uuid->uuid, sizeof(*uuid) - 1);
521 temp[sizeof(*uuid) - 1] = '\0';
524 return (char *)(uuid->uuid);
527 /* Extract fsname from uuid (or target name) of a target
528 e.g. (myfs-OST0007_UUID -> myfs)
529 see also deuuidify. */
530 static inline void obd_uuid2fsname(char *buf, char *uuid, int buflen)
534 strncpy(buf, uuid, buflen - 1);
535 buf[buflen - 1] = '\0';
536 p = strrchr(buf, '-');
541 /* printf display format for Lustre FIDs
542 * usage: printf("file FID is "DFID"\n", PFID(fid)); */
543 #define FID_NOBRACE_LEN 40
544 #define FID_LEN (FID_NOBRACE_LEN + 2)
545 #define DFID_NOBRACE "%#llx:0x%x:0x%x"
546 #define DFID "["DFID_NOBRACE"]"
547 #define PFID(fid) (unsigned long long)(fid)->f_seq, (fid)->f_oid, (fid)->f_ver
549 /* scanf input parse format for fids in DFID_NOBRACE format
550 * Need to strip '[' from DFID format first or use "["SFID"]" at caller.
551 * usage: sscanf(fidstr, SFID, RFID(&fid)); */
552 #define SFID "0x%llx:0x%x:0x%x"
553 #define RFID(fid) &((fid)->f_seq), &((fid)->f_oid), &((fid)->f_ver)
555 /********* Quotas **********/
557 #define LUSTRE_QUOTABLOCK_BITS 10
558 #define LUSTRE_QUOTABLOCK_SIZE (1 << LUSTRE_QUOTABLOCK_BITS)
560 static inline __u64 lustre_stoqb(size_t space)
562 return (space + LUSTRE_QUOTABLOCK_SIZE - 1) >> LUSTRE_QUOTABLOCK_BITS;
565 #define Q_QUOTACHECK 0x800100 /* deprecated as of 2.4 */
566 #define Q_INITQUOTA 0x800101 /* deprecated as of 2.4 */
567 #define Q_GETOINFO 0x800102 /* get obd quota info */
568 #define Q_GETOQUOTA 0x800103 /* get obd quotas */
569 #define Q_FINVALIDATE 0x800104 /* deprecated as of 2.4 */
571 /* these must be explicitly translated into linux Q_* in ll_dir_ioctl */
572 #define LUSTRE_Q_QUOTAON 0x800002 /* deprecated as of 2.4 */
573 #define LUSTRE_Q_QUOTAOFF 0x800003 /* deprecated as of 2.4 */
574 #define LUSTRE_Q_GETINFO 0x800005 /* get information about quota files */
575 #define LUSTRE_Q_SETINFO 0x800006 /* set information about quota files */
576 #define LUSTRE_Q_GETQUOTA 0x800007 /* get user quota structure */
577 #define LUSTRE_Q_SETQUOTA 0x800008 /* set user quota structure */
578 /* lustre-specific control commands */
579 #define LUSTRE_Q_INVALIDATE 0x80000b /* deprecated as of 2.4 */
580 #define LUSTRE_Q_FINVALIDATE 0x80000c /* deprecated as of 2.4 */
582 #define UGQUOTA 2 /* set both USRQUOTA and GRPQUOTA */
584 #define IDENTITY_DOWNCALL_MAGIC 0x6d6dd629
587 #define N_PERMS_MAX 64
589 struct perm_downcall_data {
595 struct identity_downcall_data {
602 struct perm_downcall_data idd_perms[N_PERMS_MAX];
606 #ifdef NEED_QUOTA_DEFS
608 #define QIF_BLIMITS 1
610 #define QIF_ILIMITS 4
614 #define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
615 #define QIF_USAGE (QIF_SPACE | QIF_INODES)
616 #define QIF_TIMES (QIF_BTIME | QIF_ITIME)
617 #define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
620 #endif /* !__KERNEL__ */
622 /* lustre volatile file support
623 * file name header: .^L^S^T^R:volatile"
625 #define LUSTRE_VOLATILE_HDR ".\x0c\x13\x14\x12:VOLATILE"
626 #define LUSTRE_VOLATILE_HDR_LEN 14
628 typedef enum lustre_quota_version {
630 } lustre_quota_version_t;
632 /* XXX: same as if_dqinfo struct in kernel */
640 /* XXX: same as if_dqblk struct in kernel, plus one padding */
642 __u64 dqb_bhardlimit;
643 __u64 dqb_bsoftlimit;
645 __u64 dqb_ihardlimit;
646 __u64 dqb_isoftlimit;
668 struct obd_dqinfo qc_dqinfo;
669 struct obd_dqblk qc_dqblk;
671 struct obd_uuid obd_uuid;
674 /* swap layout flags */
675 #define SWAP_LAYOUTS_CHECK_DV1 (1 << 0)
676 #define SWAP_LAYOUTS_CHECK_DV2 (1 << 1)
677 #define SWAP_LAYOUTS_KEEP_MTIME (1 << 2)
678 #define SWAP_LAYOUTS_KEEP_ATIME (1 << 3)
679 #define SWAP_LAYOUTS_CLOSE (1 << 4)
681 /* Swap XATTR_NAME_HSM as well, only on the MDT so far */
682 #define SWAP_LAYOUTS_MDS_HSM (1 << 31)
683 struct lustre_swap_layouts {
692 /********* Changelogs **********/
693 /** Changelog record types */
694 enum changelog_rec_type {
696 CL_CREATE = 1, /* namespace */
697 CL_MKDIR = 2, /* namespace */
698 CL_HARDLINK = 3, /* namespace */
699 CL_SOFTLINK = 4, /* namespace */
700 CL_MKNOD = 5, /* namespace */
701 CL_UNLINK = 6, /* namespace */
702 CL_RMDIR = 7, /* namespace */
703 CL_RENAME = 8, /* namespace */
704 CL_EXT = 9, /* namespace extended record (2nd half of rename) */
705 CL_OPEN = 10, /* not currently used */
706 CL_CLOSE = 11, /* may be written to log only with mtime change */
707 CL_LAYOUT = 12, /* file layout/striping modified */
711 CL_HSM = 16, /* HSM specific events, see flags */
712 CL_MTIME = 17, /* Precedence: setattr > mtime > ctime > atime */
719 static inline const char *changelog_type2str(int type) {
720 static const char *changelog_str[] = {
721 "MARK", "CREAT", "MKDIR", "HLINK", "SLINK", "MKNOD", "UNLNK",
722 "RMDIR", "RENME", "RNMTO", "OPEN", "CLOSE", "LYOUT", "TRUNC",
723 "SATTR", "XATTR", "HSM", "MTIME", "CTIME", "ATIME", "MIGRT"
726 if (type >= 0 && type < CL_LAST)
727 return changelog_str[type];
731 /* per-record flags */
732 #define CLF_FLAGSHIFT 12
733 #define CLF_FLAGMASK ((1U << CLF_FLAGSHIFT) - 1)
734 #define CLF_VERMASK (~CLF_FLAGMASK)
735 enum changelog_rec_flags {
736 CLF_VERSION = 0x1000,
739 CLF_SUPPORTED = CLF_VERSION | CLF_RENAME | CLF_JOBID
743 /* Anything under the flagmask may be per-type (if desired) */
744 /* Flags for unlink */
745 #define CLF_UNLINK_LAST 0x0001 /* Unlink of last hardlink */
746 #define CLF_UNLINK_HSM_EXISTS 0x0002 /* File has something in HSM */
747 /* HSM cleaning needed */
748 /* Flags for rename */
749 #define CLF_RENAME_LAST 0x0001 /* rename unlink last hardlink
751 #define CLF_RENAME_LAST_EXISTS 0x0002 /* rename unlink last hardlink of target
752 * has an archive in backend */
755 /* 12b used (from high weight to low weight):
760 #define CLF_HSM_ERR_L 0 /* HSM return code, 7 bits */
761 #define CLF_HSM_ERR_H 6
762 #define CLF_HSM_EVENT_L 7 /* HSM event, 3 bits, see enum hsm_event */
763 #define CLF_HSM_EVENT_H 9
764 #define CLF_HSM_FLAG_L 10 /* HSM flags, 2 bits, 1 used, 1 spare */
765 #define CLF_HSM_FLAG_H 11
766 #define CLF_HSM_SPARE_L 12 /* 4 spare bits */
767 #define CLF_HSM_SPARE_H 15
768 #define CLF_HSM_LAST 15
770 /* Remove bits higher than _h, then extract the value
771 * between _h and _l by shifting lower weigth to bit 0. */
772 #define CLF_GET_BITS(_b, _h, _l) (((_b << (CLF_HSM_LAST - _h)) & 0xFFFF) \
773 >> (CLF_HSM_LAST - _h + _l))
775 #define CLF_HSM_SUCCESS 0x00
776 #define CLF_HSM_MAXERROR 0x7E
777 #define CLF_HSM_ERROVERFLOW 0x7F
779 #define CLF_HSM_DIRTY 1 /* file is dirty after HSM request end */
781 /* 3 bits field => 8 values allowed */
793 static inline enum hsm_event hsm_get_cl_event(__u16 flags)
795 return (enum hsm_event)CLF_GET_BITS(flags, CLF_HSM_EVENT_H,
799 static inline void hsm_set_cl_event(int *flags, enum hsm_event he)
801 *flags |= (he << CLF_HSM_EVENT_L);
804 static inline __u16 hsm_get_cl_flags(int flags)
806 return CLF_GET_BITS(flags, CLF_HSM_FLAG_H, CLF_HSM_FLAG_L);
809 static inline void hsm_set_cl_flags(int *flags, int bits)
811 *flags |= (bits << CLF_HSM_FLAG_L);
814 static inline int hsm_get_cl_error(int flags)
816 return CLF_GET_BITS(flags, CLF_HSM_ERR_H, CLF_HSM_ERR_L);
819 static inline void hsm_set_cl_error(int *flags, int error)
821 *flags |= (error << CLF_HSM_ERR_L);
824 enum changelog_send_flag {
825 /* Not yet implemented */
826 CHANGELOG_FLAG_FOLLOW = 0x01,
827 /* Blocking IO makes sense in case of slow user parsing of the records,
828 * but it also prevents us from cleaning up if the records are not
830 CHANGELOG_FLAG_BLOCK = 0x02,
831 /* Pack jobid into the changelog records if available. */
832 CHANGELOG_FLAG_JOBID = 0x04,
835 #define CR_MAXSIZE cfs_size_round(2 * NAME_MAX + 2 + \
836 changelog_rec_offset(CLF_SUPPORTED))
838 /* 31 usable bytes string + null terminator. */
839 #define LUSTRE_JOBID_SIZE 32
841 /* This is the minimal changelog record. It can contain extensions
842 * such as rename fields or process jobid. Its exact content is described
845 * Extensions are packed in the same order as their corresponding flags.
847 struct changelog_rec {
849 __u16 cr_flags; /**< \a changelog_rec_flags */
850 __u32 cr_type; /**< \a changelog_rec_type */
851 __u64 cr_index; /**< changelog record number */
852 __u64 cr_prev; /**< last index for this target fid */
855 lustre_fid cr_tfid; /**< target fid */
856 __u32 cr_markerflags; /**< CL_MARK flags */
858 lustre_fid cr_pfid; /**< parent fid */
861 /* Changelog extension for RENAME. */
862 struct changelog_ext_rename {
863 lustre_fid cr_sfid; /**< source fid, or zero */
864 lustre_fid cr_spfid; /**< source parent fid, or zero */
867 /* Changelog extension to include JOBID. */
868 struct changelog_ext_jobid {
869 char cr_jobid[LUSTRE_JOBID_SIZE]; /**< zero-terminated string. */
873 static inline size_t changelog_rec_offset(enum changelog_rec_flags crf)
875 size_t size = sizeof(struct changelog_rec);
877 if (crf & CLF_RENAME)
878 size += sizeof(struct changelog_ext_rename);
881 size += sizeof(struct changelog_ext_jobid);
886 static inline size_t changelog_rec_size(const struct changelog_rec *rec)
888 return changelog_rec_offset(rec->cr_flags);
891 static inline size_t changelog_rec_varsize(const struct changelog_rec *rec)
893 return changelog_rec_size(rec) - sizeof(*rec) + rec->cr_namelen;
897 struct changelog_ext_rename *changelog_rec_rename(const struct changelog_rec *rec)
899 enum changelog_rec_flags crf = rec->cr_flags & CLF_VERSION;
901 return (struct changelog_ext_rename *)((char *)rec +
902 changelog_rec_offset(crf));
905 /* The jobid follows the rename extension, if present */
907 struct changelog_ext_jobid *changelog_rec_jobid(const struct changelog_rec *rec)
909 enum changelog_rec_flags crf = rec->cr_flags &
910 (CLF_VERSION | CLF_RENAME);
912 return (struct changelog_ext_jobid *)((char *)rec +
913 changelog_rec_offset(crf));
916 /* The name follows the rename and jobid extensions, if present */
917 static inline char *changelog_rec_name(const struct changelog_rec *rec)
919 return (char *)rec + changelog_rec_offset(rec->cr_flags &
923 static inline size_t changelog_rec_snamelen(const struct changelog_rec *rec)
925 return rec->cr_namelen - strlen(changelog_rec_name(rec)) - 1;
928 static inline char *changelog_rec_sname(const struct changelog_rec *rec)
930 char *cr_name = changelog_rec_name(rec);
932 return cr_name + strlen(cr_name) + 1;
936 * Remap a record to the desired format as specified by the crf flags.
937 * The record must be big enough to contain the final remapped version.
938 * Superfluous extension fields are removed and missing ones are added
939 * and zeroed. The flags of the record are updated accordingly.
941 * The jobid and rename extensions can be added to a record, to match the
942 * format an application expects, typically. In this case, the newly added
943 * fields will be zeroed.
944 * The Jobid field can be removed, to guarantee compatibility with older
945 * clients that don't expect this field in the records they process.
947 * The following assumptions are being made:
948 * - CLF_RENAME will not be removed
949 * - CLF_JOBID will not be added without CLF_RENAME being added too
951 * @param[in,out] rec The record to remap.
952 * @param[in] crf_wanted Flags describing the desired extensions.
954 static inline void changelog_remap_rec(struct changelog_rec *rec,
955 enum changelog_rec_flags crf_wanted)
960 crf_wanted &= CLF_SUPPORTED;
962 if ((rec->cr_flags & CLF_SUPPORTED) == crf_wanted)
965 /* First move the variable-length name field */
966 memmove((char *)rec + changelog_rec_offset(crf_wanted),
967 changelog_rec_name(rec), rec->cr_namelen);
969 /* Locations of jobid and rename extensions in the remapped record */
970 jid_mov = (char *)rec +
971 changelog_rec_offset(crf_wanted & ~CLF_JOBID);
972 rnm_mov = (char *)rec +
973 changelog_rec_offset(crf_wanted & ~(CLF_JOBID | CLF_RENAME));
975 /* Move the extension fields to the desired positions */
976 if ((crf_wanted & CLF_JOBID) && (rec->cr_flags & CLF_JOBID))
977 memmove(jid_mov, changelog_rec_jobid(rec),
978 sizeof(struct changelog_ext_jobid));
980 if ((crf_wanted & CLF_RENAME) && (rec->cr_flags & CLF_RENAME))
981 memmove(rnm_mov, changelog_rec_rename(rec),
982 sizeof(struct changelog_ext_rename));
984 /* Clear newly added fields */
985 if ((crf_wanted & CLF_JOBID) && !(rec->cr_flags & CLF_JOBID))
986 memset(jid_mov, 0, sizeof(struct changelog_ext_jobid));
988 if ((crf_wanted & CLF_RENAME) && !(rec->cr_flags & CLF_RENAME))
989 memset(rnm_mov, 0, sizeof(struct changelog_ext_rename));
991 /* Update the record's flags accordingly */
992 rec->cr_flags = (rec->cr_flags & CLF_FLAGMASK) | crf_wanted;
995 struct ioc_changelog {
1002 enum changelog_message_type {
1003 CL_RECORD = 10, /* message is a changelog_rec */
1004 CL_EOF = 11, /* at end of current changelog */
1007 /********* Misc **********/
1009 struct ioc_data_version {
1011 __u64 idv_flags; /* See LL_DV_xxx */
1013 #define LL_DV_RD_FLUSH (1 << 0) /* Flush dirty pages from clients */
1014 #define LL_DV_WR_FLUSH (1 << 1) /* Flush all caching pages from clients */
1017 #define offsetof(typ, memb) ((unsigned long)((char *)&(((typ *)0)->memb)))
1020 #define dot_lustre_name ".lustre"
1023 /********* HSM **********/
1025 /** HSM per-file state
1026 * See HSM_FLAGS below.
1029 HS_NONE = 0x00000000,
1030 HS_EXISTS = 0x00000001,
1031 HS_DIRTY = 0x00000002,
1032 HS_RELEASED = 0x00000004,
1033 HS_ARCHIVED = 0x00000008,
1034 HS_NORELEASE = 0x00000010,
1035 HS_NOARCHIVE = 0x00000020,
1036 HS_LOST = 0x00000040,
1039 /* HSM user-setable flags. */
1040 #define HSM_USER_MASK (HS_NORELEASE | HS_NOARCHIVE | HS_DIRTY)
1042 /* Other HSM flags. */
1043 #define HSM_STATUS_MASK (HS_EXISTS | HS_LOST | HS_RELEASED | HS_ARCHIVED)
1046 * All HSM-related possible flags that could be applied to a file.
1047 * This should be kept in sync with hsm_states.
1049 #define HSM_FLAGS_MASK (HSM_USER_MASK | HSM_STATUS_MASK)
1052 * HSMÂ request progress state
1054 enum hsm_progress_states {
1061 static inline const char *hsm_progress_state2name(enum hsm_progress_states s)
1064 case HPS_WAITING: return "waiting";
1065 case HPS_RUNNING: return "running";
1066 case HPS_DONE: return "done";
1067 default: return "unknown";
1074 } __attribute__((packed));
1077 * Current HSM states of a Lustre file.
1079 * This structure purpose is to be sent to user-space mainly. It describes the
1080 * current HSM flags and in-progress action.
1082 struct hsm_user_state {
1083 /** Current HSM states, from enum hsm_states. */
1085 __u32 hus_archive_id;
1086 /** The current undergoing action, if there is one */
1087 __u32 hus_in_progress_state;
1088 __u32 hus_in_progress_action;
1089 struct hsm_extent hus_in_progress_location;
1090 char hus_extended_info[];
1093 struct hsm_state_set_ioc {
1094 struct lu_fid hssi_fid;
1096 __u64 hssi_clearmask;
1100 * This structure describes the current in-progress action for a file.
1101 * it is retuned to user space and send over the wire
1103 struct hsm_current_action {
1104 /** The current undergoing action, if there is one */
1105 /* state is one of hsm_progress_states */
1107 /* action is one of hsm_user_action */
1109 struct hsm_extent hca_location;
1112 /***** HSM user requests ******/
1113 /* User-generated (lfs/ioctl) request types */
1114 enum hsm_user_action {
1115 HUA_NONE = 1, /* no action (noop) */
1116 HUA_ARCHIVE = 10, /* copy to hsm */
1117 HUA_RESTORE = 11, /* prestage */
1118 HUA_RELEASE = 12, /* drop ost objects */
1119 HUA_REMOVE = 13, /* remove from archive */
1120 HUA_CANCEL = 14 /* cancel a request */
1123 static inline const char *hsm_user_action2name(enum hsm_user_action a)
1126 case HUA_NONE: return "NOOP";
1127 case HUA_ARCHIVE: return "ARCHIVE";
1128 case HUA_RESTORE: return "RESTORE";
1129 case HUA_RELEASE: return "RELEASE";
1130 case HUA_REMOVE: return "REMOVE";
1131 case HUA_CANCEL: return "CANCEL";
1132 default: return "UNKNOWN";
1137 * List of hr_flags (bit field)
1139 #define HSM_FORCE_ACTION 0x0001
1140 /* used by CT, cannot be set by user */
1141 #define HSM_GHOST_COPY 0x0002
1144 * Contains all the fixed part of struct hsm_user_request.
1147 struct hsm_request {
1148 __u32 hr_action; /* enum hsm_user_action */
1149 __u32 hr_archive_id; /* archive id, used only with HUA_ARCHIVE */
1150 __u64 hr_flags; /* request flags */
1151 __u32 hr_itemcount; /* item count in hur_user_item vector */
1155 struct hsm_user_item {
1157 struct hsm_extent hui_extent;
1158 } __attribute__((packed));
1160 struct hsm_user_request {
1161 struct hsm_request hur_request;
1162 struct hsm_user_item hur_user_item[0];
1163 /* extra data blob at end of struct (after all
1164 * hur_user_items), only use helpers to access it
1166 } __attribute__((packed));
1168 /** Return pointer to data field in a hsm user request */
1169 static inline void *hur_data(struct hsm_user_request *hur)
1171 return &(hur->hur_user_item[hur->hur_request.hr_itemcount]);
1175 * Compute the current length of the provided hsm_user_request. This returns -1
1176 * instead of an errno because ssize_t is defined to be only [ -1, SSIZE_MAX ]
1178 * return -1 on bounds check error.
1180 static inline ssize_t hur_len(struct hsm_user_request *hur)
1184 /* can't overflow a __u64 since hr_itemcount is only __u32 */
1185 size = offsetof(struct hsm_user_request, hur_user_item[0]) +
1186 (__u64)hur->hur_request.hr_itemcount *
1187 sizeof(hur->hur_user_item[0]) + hur->hur_request.hr_data_len;
1189 if (size != (ssize_t)size)
1195 /****** HSM RPCs to copytool *****/
1196 /* Message types the copytool may receive */
1197 enum hsm_message_type {
1198 HMT_ACTION_LIST = 100, /* message is a hsm_action_list */
1201 /* Actions the copytool may be instructed to take for a given action_item */
1202 enum hsm_copytool_action {
1203 HSMA_NONE = 10, /* no action */
1204 HSMA_ARCHIVE = 20, /* arbitrary offset */
1210 static inline const char *hsm_copytool_action2name(enum hsm_copytool_action a)
1213 case HSMA_NONE: return "NOOP";
1214 case HSMA_ARCHIVE: return "ARCHIVE";
1215 case HSMA_RESTORE: return "RESTORE";
1216 case HSMA_REMOVE: return "REMOVE";
1217 case HSMA_CANCEL: return "CANCEL";
1218 default: return "UNKNOWN";
1222 /* Copytool item action description */
1223 struct hsm_action_item {
1224 __u32 hai_len; /* valid size of this struct */
1225 __u32 hai_action; /* hsm_copytool_action, but use known size */
1226 lustre_fid hai_fid; /* Lustre FID to operate on */
1227 lustre_fid hai_dfid; /* fid used for data access */
1228 struct hsm_extent hai_extent; /* byte range to operate on */
1229 __u64 hai_cookie; /* action cookie from coordinator */
1230 __u64 hai_gid; /* grouplock id */
1231 char hai_data[0]; /* variable length */
1232 } __attribute__((packed));
1235 * helper function which print in hexa the first bytes of
1238 * \param hai [IN] record to print
1239 * \param buffer [IN,OUT] buffer to write the hex string to
1240 * \param len [IN] max buffer length
1244 static inline char *hai_dump_data_field(const struct hsm_action_item *hai,
1245 char *buffer, size_t len)
1252 data_len = hai->hai_len - sizeof(*hai);
1253 for (i = 0; (i < data_len) && (len > 2); i++) {
1254 snprintf(ptr, 3, "%02X", (unsigned char)hai->hai_data[i]);
1264 /* Copytool action list */
1265 #define HAL_VERSION 1
1266 #define HAL_MAXSIZE LNET_MTU /* bytes, used in userspace only */
1267 struct hsm_action_list {
1269 __u32 hal_count; /* number of hai's to follow */
1270 __u64 hal_compound_id; /* returned by coordinator */
1272 __u32 hal_archive_id; /* which archive backend */
1274 char hal_fsname[0]; /* null-terminated */
1275 /* struct hsm_action_item[hal_count] follows, aligned on 8-byte
1276 boundaries. See hai_zero */
1277 } __attribute__((packed));
1279 #ifndef HAVE_CFS_SIZE_ROUND
1280 static inline int cfs_size_round (int val)
1282 return (val + 7) & (~0x7);
1284 #define HAVE_CFS_SIZE_ROUND
1287 /* Return pointer to first hai in action list */
1288 static inline struct hsm_action_item *hai_first(struct hsm_action_list *hal)
1290 return (struct hsm_action_item *)(hal->hal_fsname +
1291 cfs_size_round(strlen(hal-> \
1295 /* Return pointer to next hai */
1296 static inline struct hsm_action_item * hai_next(struct hsm_action_item *hai)
1298 return (struct hsm_action_item *)((char *)hai +
1299 cfs_size_round(hai->hai_len));
1302 /* Return size of an hsm_action_list */
1303 static inline size_t hal_size(struct hsm_action_list *hal)
1307 struct hsm_action_item *hai;
1309 sz = sizeof(*hal) + cfs_size_round(strlen(hal->hal_fsname) + 1);
1310 hai = hai_first(hal);
1311 for (i = 0; i < hal->hal_count ; i++, hai = hai_next(hai))
1312 sz += cfs_size_round(hai->hai_len);
1318 * describe the attributes to be set on imported file
1320 struct hsm_user_import {
1329 __u32 hui_archive_id;
1332 /* Copytool progress reporting */
1333 #define HP_FLAG_COMPLETED 0x01
1334 #define HP_FLAG_RETRY 0x02
1336 struct hsm_progress {
1339 struct hsm_extent hp_extent;
1341 __u16 hp_errval; /* positive val */
1346 __u64 hc_data_version;
1348 __u16 hc_errval; /* positive val */
1350 struct hsm_action_item hc_hai;
1354 enum llapi_json_types {
1355 LLAPI_JSON_INTEGER = 1,
1361 struct llapi_json_item {
1370 struct llapi_json_item *lji_next;
1373 struct llapi_json_item_list {
1374 int ljil_item_count;
1375 struct llapi_json_item *ljil_items;
1378 enum lu_ladvise_type {
1379 LU_LADVISE_INVALID = 0,
1380 LU_LADVISE_WILLREAD = 1,
1381 LU_LADVISE_DONTNEED = 2,
1384 #define LU_LADVISE_NAMES { \
1385 [LU_LADVISE_WILLREAD] = "willread", \
1386 [LU_LADVISE_DONTNEED] = "dontneed", \
1389 /* This is the userspace argument for ladvise. It is currently the same as
1390 * what goes on the wire (struct lu_ladvise), but is defined separately as we
1391 * may need info which is only used locally. */
1392 struct llapi_lu_ladvise {
1393 __u16 lla_advice; /* advice type */
1394 __u16 lla_value1; /* values for different advice types */
1396 __u64 lla_start; /* first byte of extent for advice */
1397 __u64 lla_end; /* last byte of extent for advice */
1403 LF_ASYNC = 0x00000001,
1406 #define LADVISE_MAGIC 0x1ADF1CE0
1407 #define LF_MASK LF_ASYNC
1409 /* This is the userspace argument for ladvise, corresponds to ladvise_hdr which
1410 * is used on the wire. It is defined separately as we may need info which is
1411 * only used locally. */
1412 struct llapi_ladvise_hdr {
1413 __u32 lah_magic; /* LADVISE_MAGIC */
1414 __u32 lah_count; /* number of advices */
1415 __u64 lah_flags; /* from enum ladvise_flag */
1416 __u32 lah_value1; /* unused */
1417 __u32 lah_value2; /* unused */
1418 __u64 lah_value3; /* unused */
1419 struct llapi_lu_ladvise lah_advise[0]; /* advices in this header */
1422 #define LAH_COUNT_MAX (1024)
1426 SK_CRYPT_INVALID = -1,
1428 SK_CRYPT_AES256_CTR = 1,
1433 SK_HMAC_INVALID = -1,
1440 struct sk_crypt_type {
1445 struct sk_hmac_type {
1450 /** @} lustreuser */
1451 #endif /* _LUSTRE_USER_H */