1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
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 #include <lustre/ll_fiemap.h>
45 #if defined(__linux__)
46 #include <linux/lustre_user.h>
47 #elif defined(__APPLE__)
48 #include <darwin/lustre_user.h>
49 #elif defined(__WINNT__)
50 #include <winnt/lustre_user.h>
52 #error Unsupported operating system.
56 #define LL_SUPER_MAGIC 0x0BD00BD0
58 #define FSFILT_IOC_GETFLAGS _IOR('f', 1, long)
59 #define FSFILT_IOC_SETFLAGS _IOW('f', 2, long)
60 #define FSFILT_IOC_GETVERSION _IOR('f', 3, long)
61 #define FSFILT_IOC_SETVERSION _IOW('f', 4, long)
62 #define FSFILT_IOC_GETVERSION_OLD _IOR('v', 1, long)
63 #define FSFILT_IOC_SETVERSION_OLD _IOW('v', 2, long)
64 #define FSFILT_IOC_FIEMAP _IOWR('f', 11, struct ll_user_fiemap)
66 /* FIEMAP flags supported by Lustre */
67 #define LUSTRE_FIEMAP_FLAGS_COMPAT (FIEMAP_FLAG_SYNC | FIEMAP_FLAG_DEVICE_ORDER)
69 enum obd_statfs_state {
70 OS_STATE_DEGRADED = 0x00000001, /**< RAID degraded/rebuilding */
71 OS_STATE_READONLY = 0x00000002, /**< filesystem is read-only */
72 OS_STATE_RDONLY_1 = 0x00000004, /**< obsolete 1.6, was EROFS=30 */
73 OS_STATE_RDONLY_2 = 0x00000008, /**< obsolete 1.6, was EROFS=30 */
74 OS_STATE_RDONLY_3 = 0x00000010, /**< obsolete 1.6, was EROFS=30 */
88 __u32 os_state; /**< obd_statfs_state OS_STATE_* flag */
102 * The ioctl naming rules:
103 * LL_* - works on the currently opened filehandle instead of parent dir
104 * *_OBD_* - gets data for both OSC or MDC (LOV, LMV indirectly)
105 * *_MDC_* - gets/sets data related to MDC
106 * *_LOV_* - gets/sets data related to OSC/LOV
107 * *FILE* - called on parent dir and passes in a filename
108 * *STRIPE* - set/get lov_user_md
109 * *INFO - set/get lov_user_mds_data
111 #define LL_IOC_GETFLAGS _IOR ('f', 151, long)
112 #define LL_IOC_SETFLAGS _IOW ('f', 152, long)
113 #define LL_IOC_CLRFLAGS _IOW ('f', 153, long)
114 #define LL_IOC_LOV_SETSTRIPE _IOW ('f', 154, long)
115 #define LL_IOC_LOV_GETSTRIPE _IOW ('f', 155, long)
116 #define LL_IOC_LOV_SETEA _IOW ('f', 156, long)
117 #define LL_IOC_RECREATE_OBJ _IOW ('f', 157, long)
118 #define LL_IOC_GROUP_LOCK _IOW ('f', 158, long)
119 #define LL_IOC_GROUP_UNLOCK _IOW ('f', 159, long)
120 #define LL_IOC_QUOTACHECK _IOW ('f', 160, int)
121 #define LL_IOC_POLL_QUOTACHECK _IOR ('f', 161, struct if_quotacheck *)
122 #define LL_IOC_QUOTACTL _IOWR('f', 162, struct if_quotactl *)
123 #define LL_IOC_JOIN _IOW ('f', 163, long)
124 #define IOC_OBD_STATFS _IOWR('f', 164, struct obd_statfs *)
125 #define IOC_LOV_GETINFO _IOWR('f', 165, struct lov_user_mds_data *)
127 #define LL_IOC_LLOOP_ATTACH _IOWR('f', 166, OBD_IOC_DATA_TYPE)
128 #define LL_IOC_LLOOP_DETACH _IOWR('f', 167, OBD_IOC_DATA_TYPE)
129 #define LL_IOC_LLOOP_INFO _IOWR('f', 168, OBD_IOC_DATA_TYPE)
130 #define LL_IOC_LLOOP_DETACH_BYDEV _IOWR('f', 169, OBD_IOC_DATA_TYPE)
132 #define LL_IOC_PATH2FID _IOR ('f', 173, long)
134 #define LL_STATFS_MDC 1
135 #define LL_STATFS_LOV 2
137 #define IOC_MDC_TYPE 'i'
138 #define IOC_MDC_LOOKUP _IOWR(IOC_MDC_TYPE, 20, struct obd_device *)
139 #define IOC_MDC_GETFILESTRIPE _IOWR(IOC_MDC_TYPE, 21, struct lov_user_md *)
140 #define IOC_MDC_GETFILEINFO _IOWR(IOC_MDC_TYPE, 22, struct lov_user_mds_data *)
141 #define LL_IOC_MDC_GETINFO _IOWR(IOC_MDC_TYPE, 23, struct lov_user_mds_data *)
143 /* Keep these for backward compartability. */
144 #define LL_IOC_OBD_STATFS IOC_OBD_STATFS
145 #define IOC_MDC_GETSTRIPE IOC_MDC_GETFILESTRIPE
147 #define O_LOV_DELAY_CREATE 0100000000 /* hopefully this does not conflict */
149 #define LL_FILE_IGNORE_LOCK 0x00000001
150 #define LL_FILE_GROUP_LOCKED 0x00000002
151 #define LL_FILE_READAHEAD 0x00000004
152 #define LL_FILE_LOCKED_DIRECTIO 0x00000008 /* client-side locks with dio */
153 #define LL_FILE_LOCKLESS_IO 0x00000010 /* server-side locks with cio */
155 #define LOV_USER_MAGIC_V1 0x0BD10BD0
156 #define LOV_USER_MAGIC LOV_USER_MAGIC_V1
157 #define LOV_USER_MAGIC_JOIN 0x0BD20BD0
158 #define LOV_USER_MAGIC_V3 0x0BD30BD0
160 #define LOV_USER_MAGIC_V1_SWABBED 0xD00BD10B
161 #define LOV_USER_MAGIC_V3_SWABBED 0xD00BD30B
163 #define LOV_PATTERN_RAID0 0x001
164 #define LOV_PATTERN_RAID1 0x002
165 #define LOV_PATTERN_FIRST 0x100
167 #define LOV_MAXPOOLNAME 16
168 #define LOV_POOLNAMEF "%.16s"
170 #define lov_user_ost_data lov_user_ost_data_v1
171 struct lov_user_ost_data_v1 { /* per-stripe data structure */
172 __u64 l_object_id; /* OST object ID */
173 __u64 l_object_gr; /* OST object group (creating MDS number) */
174 __u32 l_ost_gen; /* generation of this OST index */
175 __u32 l_ost_idx; /* OST index in LOV */
176 } __attribute__((packed));
178 #define lov_user_md lov_user_md_v1
179 struct lov_user_md_v1 { /* LOV EA user data (host-endian) */
180 __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V1 */
181 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
182 __u64 lmm_object_id; /* LOV object ID */
183 __u64 lmm_object_gr; /* LOV object group */
184 __u32 lmm_stripe_size; /* size of stripe in bytes */
185 __u16 lmm_stripe_count; /* num stripes in use for this object */
186 __u16 lmm_stripe_offset; /* starting stripe offset in lmm_objects */
187 struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
188 } __attribute__((packed));
190 struct lov_user_md_v3 { /* LOV EA user data (host-endian) */
191 __u32 lmm_magic; /* magic number = LOV_USER_MAGIC_V3 */
192 __u32 lmm_pattern; /* LOV_PATTERN_RAID0, LOV_PATTERN_RAID1 */
193 __u64 lmm_object_id; /* LOV object ID */
194 __u64 lmm_object_gr; /* LOV object group */
195 __u32 lmm_stripe_size; /* size of stripe in bytes */
196 __u16 lmm_stripe_count; /* num stripes in use for this object */
197 __u16 lmm_stripe_offset; /* starting stripe offset in lmm_objects */
198 char lmm_pool_name[LOV_MAXPOOLNAME]; /* pool name */
199 struct lov_user_ost_data_v1 lmm_objects[0]; /* per-stripe data */
200 } __attribute__((packed));
202 /* Compile with -D_LARGEFILE64_SOURCE or -D_GNU_SOURCE (or #define) to
203 * use this. It is unsafe to #define those values in this header as it
204 * is possible the application has already #included <sys/stat.h>. */
205 #ifdef HAVE_LOV_USER_MDS_DATA
206 #define lov_user_mds_data lov_user_mds_data_v1
207 struct lov_user_mds_data_v1 {
208 lstat_t lmd_st; /* MDS stat struct */
209 struct lov_user_md_v1 lmd_lmm; /* LOV EA V1 user data */
210 } __attribute__((packed));
212 struct lov_user_mds_data_v3 {
213 lstat_t lmd_st; /* MDS stat struct */
214 struct lov_user_md_v3 lmd_lmm; /* LOV EA V3 user data */
215 } __attribute__((packed));
218 struct ll_recreate_obj {
224 __u64 id; /* holds object id */
225 __u32 generation; /* holds object generation */
226 __u32 f_type; /* holds object type or stripe idx when passing it to
227 * OST for saving into EA. */
231 struct ll_fid ff_fid; /* ff_fid.f_type == file stripe number */
240 static inline int obd_uuid_equals(struct obd_uuid *u1, struct obd_uuid *u2)
242 return strcmp((char *)u1->uuid, (char *)u2->uuid) == 0;
245 static inline int obd_uuid_empty(struct obd_uuid *uuid)
247 return uuid->uuid[0] == '\0';
250 static inline void obd_str2uuid(struct obd_uuid *uuid, char *tmp)
252 strncpy((char *)uuid->uuid, tmp, sizeof(*uuid));
253 uuid->uuid[sizeof(*uuid) - 1] = '\0';
256 /* For printf's only, make sure uuid is terminated */
257 static inline char *obd_uuid2str(struct obd_uuid *uuid)
259 if (uuid->uuid[sizeof(*uuid) - 1] != '\0') {
260 /* Obviously not safe, but for printfs, no real harm done...
261 we're always null-terminated, even in a race. */
262 static char temp[sizeof(*uuid)];
263 memcpy(temp, uuid->uuid, sizeof(*uuid) - 1);
264 temp[sizeof(*uuid) - 1] = '\0';
267 return (char *)(uuid->uuid);
271 __u64 f_seq; /* holds fid sequence. Lustre should support 2^64
272 * objects, thus even if one sequence has one object we
273 * reach this value. */
274 __u32 f_oid; /* fid number within its sequence. */
275 __u32 f_ver; /* holds fid version. */
278 /* Userspace should treat lu_fid as opaque, and only use the following methods
279 to print or parse them. Other functions (e.g. compare, swab) could be moved
280 here from lustre_idl.h if needed. */
281 typedef struct lu_fid lustre_fid;
283 /* printf display format
284 e.g. printf("file FID is "DFID"\n", PFID(fid)); */
285 #define DFID "["LPX64":0x%x:0x%x]"
291 /* scanf input parse format -- strip '[' first.
292 e.g. sscanf(fidstr, SFID, RFID(&fid)); */
293 #define SFID "0x%llx:0x%x:0x%x"
299 /* these must be explicitly translated into linux Q_* in ll_dir_ioctl */
300 #define LUSTRE_Q_QUOTAON 0x800002 /* turn quotas on */
301 #define LUSTRE_Q_QUOTAOFF 0x800003 /* turn quotas off */
302 #define LUSTRE_Q_GETINFO 0x800005 /* get information about quota files */
303 #define LUSTRE_Q_SETINFO 0x800006 /* set information about quota files */
304 #define LUSTRE_Q_GETQUOTA 0x800007 /* get user quota structure */
305 #define LUSTRE_Q_SETQUOTA 0x800008 /* set user quota structure */
306 /* lustre-specific control commands */
307 #define LUSTRE_Q_INVALIDATE 0x80000b /* invalidate quota data */
308 #define LUSTRE_Q_FINVALIDATE 0x80000c /* invalidate filter quota data */
310 #define UGQUOTA 2 /* set both USRQUOTA and GRPQUOTA */
312 struct if_quotacheck {
314 struct obd_uuid obd_uuid;
317 #define MDS_GRP_DOWNCALL_MAGIC 0x6d6dd620
319 struct mds_grp_downcall_data {
328 #ifdef NEED_QUOTA_DEFS
331 #define QIF_BLIMITS 1
333 #define QIF_ILIMITS 4
337 #define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
338 #define QIF_USAGE (QIF_SPACE | QIF_INODES)
339 #define QIF_TIMES (QIF_BTIME | QIF_ITIME)
340 #define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
343 #endif /* !__KERNEL__ */
345 #define QFMT_LDISKFS 2 /* pre-1.6.6 compatibility */
347 typedef enum lustre_quota_version {
350 } lustre_quota_version_t;
352 /* XXX: same as if_dqinfo struct in kernel */
360 /* XXX: same as if_dqblk struct in kernel, plus one padding */
362 __u64 dqb_bhardlimit;
363 __u64 dqb_bsoftlimit;
365 __u64 dqb_ihardlimit;
366 __u64 dqb_isoftlimit;
379 struct obd_dqinfo qc_dqinfo;
380 struct obd_dqblk qc_dqblk;
382 struct obd_uuid obd_uuid;
386 # define offsetof(typ,memb) ((unsigned long)((char *)&(((typ *)0)->memb)))
389 #endif /* _LUSTRE_USER_H */