1 #ifndef __LINUX_CLASS_OBD_H
2 #define __LINUX_CLASS_OBD_H
5 #include <linux/ext2_fs.h>
6 #include <linux/time.h>
9 #include <linux/obd_ext2.h>
10 #include <linux/obd_snap.h>
11 /* #include <linux/obd_fc.h> */
12 #include <linux/obd_raid1.h>
13 #include <linux/obd_rpc.h>
17 * ======== OBD type Declarations ===========
20 typedef uint64_t obd_id;
21 typedef uint64_t obd_gr;
22 typedef uint64_t obd_time;
23 typedef uint64_t obd_size;
24 typedef uint64_t obd_off;
25 typedef uint64_t obd_blocks;
26 typedef uint32_t obd_blksize;
27 typedef uint32_t obd_mode;
28 typedef uint32_t obd_uid;
29 typedef uint32_t obd_gid;
30 typedef uint32_t obd_flag;
31 typedef uint32_t obd_count;
33 #define OBD_FL_INLINEDATA (1UL)
34 #define OBD_FL_OBDMDEXISTS (1UL << 1)
36 #define OBD_INLINESZ 60
37 #define OBD_OBDMDSZ 60
38 /* Note: 64-bit types are 64-bit aligned in structure */
47 obd_blksize o_blksize;
54 obd_count o_generation;
55 obd_flag o_valid; /* hot fields in this obdo */
56 char o_inline[OBD_INLINESZ];
57 char o_obdmd[OBD_OBDMDSZ];
58 struct list_head o_list;
62 #define OBD_MD_FLALL (~0UL)
63 #define OBD_MD_FLID (0x0001UL)
64 #define OBD_MD_FLATIME (0x0002UL)
65 #define OBD_MD_FLMTIME (0x0004UL)
66 #define OBD_MD_FLCTIME (0x0008UL)
67 #define OBD_MD_FLSIZE (0x0010UL)
68 #define OBD_MD_FLBLOCKS (0x0020UL)
69 #define OBD_MD_FLBLKSZ (0x0040UL)
70 #define OBD_MD_FLMODE (0x0080UL)
71 #define OBD_MD_FLUID (0x0100UL)
72 #define OBD_MD_FLGID (0x0200UL)
73 #define OBD_MD_FLFLAGS (0x0400UL)
74 #define OBD_MD_FLOBDFLG (0x0800UL)
75 #define OBD_MD_FLNLINK (0x1000UL)
76 #define OBD_MD_FLGENER (0x2000UL)
77 #define OBD_MD_FLINLINE (0x4000UL)
78 #define OBD_MD_FLOBDMD (0x8000UL)
81 * ======== OBD Device Declarations ===========
85 #define OBD_PSDEV_MAJOR 186
86 #define MAX_OBD_DEVICES 8
90 extern struct obd_device obd_dev[MAX_OBD_DEVICES];
93 #define OBD_ATTACHED 0x1
94 #define OBD_SET_UP 0x2
97 struct obd_device *oc_dev;
101 /* corresponds to one of the obdx */
103 struct obd_type *obd_type;
108 struct obd_conn obd_multi_conn[MAX_MULTI];
109 unsigned int obd_gen_last_id;
110 unsigned long obd_gen_prealloc_quota;
111 struct list_head obd_gen_clients;
113 struct ext2_obd ext2;
114 struct raid1_obd raid1;
115 struct snap_obd snap;
117 /* struct fc_obd fc; */
122 * ======== OBD Operations Declarations ===========
127 int (*o_iocontrol)(int cmd, struct obd_conn *, int len, void *karg,
129 int (*o_get_info)(struct obd_conn *, obd_count keylen, void *key,
130 obd_count *vallen, void **val);
131 int (*o_set_info)(struct obd_conn *, obd_count keylen, void *key,
132 obd_count vallen, void *val);
133 int (*o_attach)(struct obd_device *dev, obd_count len, void *data);
134 int (*o_detach)(struct obd_device *dev);
135 int (*o_setup) (struct obd_device *dev, obd_count len, void *data);
136 int (*o_cleanup)(struct obd_device *dev);
137 int (*o_connect)(struct obd_conn *conn);
138 int (*o_disconnect)(struct obd_conn *conn);
139 int (*o_statfs)(struct obd_conn *conn, struct statfs *statfs);
140 int (*o_preallocate)(struct obd_conn *, obd_count *req, obd_id *ids);
141 int (*o_create)(struct obd_conn *conn, struct obdo *oa);
142 int (*o_destroy)(struct obd_conn *conn, struct obdo *oa);
143 int (*o_setattr)(struct obd_conn *conn, struct obdo *oa);
144 int (*o_getattr)(struct obd_conn *conn, struct obdo *oa);
145 int (*o_read)(struct obd_conn *conn, struct obdo *oa, char *buf,
146 obd_size *count, obd_off offset);
147 int (*o_write)(struct obd_conn *conn, struct obdo *oa, char *buf,
148 obd_size *count, obd_off offset);
149 int (*o_brw)(int rw, struct obd_conn *conn, struct obdo *oa,
150 char *buf, obd_size count, obd_off offset, obd_flag flags);
151 int (*o_punch)(struct obd_conn *conn, struct obdo *tgt, obd_size count,
153 int (*o_sync)(struct obd_conn *conn, struct obdo *tgt, obd_size count,
155 int (*o_migrate)(struct obd_conn *conn, struct obdo *dst,
156 struct obdo *src, obd_size count, obd_off offset);
157 int (*o_copy)(struct obd_conn *dstconn, struct obdo *dst,
158 struct obd_conn *srconn, struct obdo *src,
159 obd_size count, obd_off offset);
160 int (*o_iterate)(struct obd_conn *conn, int (*)(obd_id, obd_gr, void *),
161 obd_id *startid, obd_gr group, void *data);
164 #define OBT(dev) dev->obd_type->typ_ops
165 #define OBP(dev,op) dev->obd_type->typ_ops->o_ ## op
169 * ======== OBD Metadata Support ===========
172 extern int obd_init_obdo_cache(void);
173 extern void obd_cleanup_obdo_cache(void);
176 static inline int obdo_has_inline(struct obdo *obdo)
178 return obdo->o_obdflags & OBD_FL_INLINEDATA;
181 static inline int obdo_has_obdmd(struct obdo *obdo)
183 return obdo->o_obdflags & OBD_FL_OBDMDEXISTS;
186 /* support routines */
187 extern kmem_cache_t *obdo_cachep;
189 static __inline__ struct obdo *obdo_alloc(void)
191 struct obdo *res = NULL;
193 res = kmem_cache_alloc(obdo_cachep, SLAB_KERNEL);
194 memset(res, 0, sizeof (*res));
199 static __inline__ void obdo_free(struct obdo *oa)
203 kmem_cache_free(obdo_cachep, oa);
208 static __inline__ struct obdo *obdo_fromid(struct obd_conn *conn, obd_id id)
210 struct obdo *res = NULL;
212 res = kmem_cache_alloc(obdo_cachep, SLAB_KERNEL);
217 memset(res, 0, sizeof(*res));
219 if (OBP(conn->oc_dev, getattr)(conn, res)) {
220 OBD_FREE(res, sizeof(*res));
228 static inline void obdo_from_iattr(struct obdo *oa, struct iattr *attr)
230 unsigned int ia_valid = attr->ia_valid;
232 if (ia_valid & ATTR_ATIME) {
233 oa->o_atime = attr->ia_atime;
234 oa->o_valid |= OBD_MD_FLATIME;
236 if (ia_valid & ATTR_MTIME) {
237 oa->o_mtime = attr->ia_mtime;
238 oa->o_valid |= OBD_MD_FLMTIME;
240 if (ia_valid & ATTR_CTIME) {
241 oa->o_ctime = attr->ia_ctime;
242 oa->o_valid |= OBD_MD_FLCTIME;
244 if (ia_valid & ATTR_SIZE) {
245 oa->o_size = attr->ia_size;
246 oa->o_valid |= OBD_MD_FLSIZE;
248 if (ia_valid & ATTR_MODE) {
249 oa->o_mode = attr->ia_mode;
250 oa->o_valid |= OBD_MD_FLMODE;
251 if (!in_group_p(oa->o_gid) && !capable(CAP_FSETID))
252 oa->o_mode &= ~S_ISGID;
254 if (ia_valid & ATTR_UID)
256 oa->o_uid = attr->ia_uid;
257 oa->o_valid |= OBD_MD_FLUID;
259 if (ia_valid & ATTR_GID) {
260 oa->o_gid = attr->ia_gid;
261 oa->o_valid |= OBD_MD_FLGID;
266 static __inline__ void obdo_cpy_md(struct obdo *dst, struct obdo *src)
268 CDEBUG(D_INODE, "flags 0x%x\n", src->o_valid);
269 if ( src->o_valid & OBD_MD_FLATIME )
270 dst->o_atime = src->o_atime;
271 if ( src->o_valid & OBD_MD_FLMTIME )
272 dst->o_mtime = src->o_mtime;
273 if ( src->o_valid & OBD_MD_FLCTIME )
274 dst->o_ctime = src->o_ctime;
275 if ( src->o_valid & OBD_MD_FLSIZE )
276 dst->o_size = src->o_size;
277 if ( src->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
278 dst->o_blocks = src->o_blocks;
279 if ( src->o_valid & OBD_MD_FLBLKSZ )
280 dst->o_blksize = src->o_blksize;
281 if ( src->o_valid & OBD_MD_FLMODE )
282 dst->o_mode = src->o_mode;
283 if ( src->o_valid & OBD_MD_FLUID )
284 dst->o_uid = src->o_uid;
285 if ( src->o_valid & OBD_MD_FLGID )
286 dst->o_gid = src->o_gid;
287 if ( src->o_valid & OBD_MD_FLFLAGS )
288 dst->o_flags = src->o_flags;
289 if ( src->o_valid & OBD_MD_FLOBDFLG )
290 dst->o_obdflags = src->o_obdflags;
291 if ( src->o_valid & OBD_MD_FLNLINK )
292 dst->o_nlink = src->o_nlink;
293 if ( src->o_valid & OBD_MD_FLGENER )
294 dst->o_generation = src->o_generation;
295 if ( src->o_valid & OBD_MD_FLINLINE )
296 memcpy(dst->o_inline, src->o_inline, sizeof(src->o_inline));
297 if ( src->o_valid & OBD_MD_FLOBDMD )
298 memcpy(dst->o_obdmd, src->o_obdmd, sizeof(src->o_obdmd));
300 dst->o_valid |= src->o_valid;
303 static __inline__ void obdo_from_inode(struct obdo *dst, struct inode *src)
305 CDEBUG(D_INODE, "flags %x\n", dst->o_valid);
306 if ( dst->o_valid & OBD_MD_FLID )
307 dst->o_id = src->i_ino;
308 if ( dst->o_valid & OBD_MD_FLATIME )
309 dst->o_atime = src->i_atime;
310 if ( dst->o_valid & OBD_MD_FLMTIME )
311 dst->o_mtime = src->i_mtime;
312 if ( dst->o_valid & OBD_MD_FLCTIME )
313 dst->o_ctime = src->i_ctime;
314 if ( dst->o_valid & OBD_MD_FLSIZE )
315 dst->o_size = src->i_size;
316 if ( dst->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
317 dst->o_blocks = src->i_blocks;
318 if ( dst->o_valid & OBD_MD_FLBLKSZ )
319 dst->o_blksize = src->i_blksize;
320 if ( dst->o_valid & OBD_MD_FLMODE )
321 dst->o_mode = src->i_mode;
322 if ( dst->o_valid & OBD_MD_FLUID )
323 dst->o_uid = src->i_uid;
324 if ( dst->o_valid & OBD_MD_FLGID )
325 dst->o_gid = src->i_gid;
326 if ( dst->o_valid & OBD_MD_FLFLAGS )
327 dst->o_flags = src->i_flags;
328 if ( dst->o_valid & OBD_MD_FLNLINK )
329 dst->o_nlink = src->i_nlink;
330 if ( dst->o_valid & OBD_MD_FLGENER )
331 dst->o_generation = src->i_generation;
334 static __inline__ void obdo_to_inode(struct inode *dst, struct obdo *src)
337 CDEBUG(D_INODE, "flags %x\n", src->o_valid);
338 if ( src->o_valid & OBD_MD_FLID )
339 dst->i_ino = src->o_id;
340 if ( src->o_valid & OBD_MD_FLATIME )
341 dst->i_atime = src->o_atime;
342 if ( src->o_valid & OBD_MD_FLMTIME )
343 dst->i_mtime = src->o_mtime;
344 if ( src->o_valid & OBD_MD_FLCTIME )
345 dst->i_ctime = src->o_ctime;
346 if ( src->o_valid & OBD_MD_FLSIZE )
347 dst->i_size = src->o_size;
348 if ( src->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
349 dst->i_blocks = src->o_blocks;
350 if ( src->o_valid & OBD_MD_FLBLKSZ )
351 dst->i_blksize = src->o_blksize;
352 if ( src->o_valid & OBD_MD_FLMODE )
353 dst->i_mode = src->o_mode;
354 if ( src->o_valid & OBD_MD_FLUID )
355 dst->i_uid = src->o_uid;
356 if ( src->o_valid & OBD_MD_FLGID )
357 dst->i_gid = src->o_gid;
358 if ( src->o_valid & OBD_MD_FLFLAGS )
359 dst->i_flags = src->o_flags;
360 if ( src->o_valid & OBD_MD_FLNLINK )
361 dst->i_nlink = src->o_nlink;
362 if ( src->o_valid & OBD_MD_FLGENER )
363 dst->i_generation = src->o_generation;
366 static __inline__ int obdo_cmp_md(struct obdo *dst, struct obdo *src)
370 if ( src->o_valid & OBD_MD_FLMODE )
371 res = (res && (dst->o_mode == src->o_mode));
372 if ( src->o_valid & OBD_MD_FLUID )
373 res = (res && (dst->o_uid == src->o_uid));
374 if ( src->o_valid & OBD_MD_FLGID )
375 res = (res && (dst->o_gid == src->o_gid));
376 if ( src->o_valid & OBD_MD_FLSIZE )
377 res = (res && (dst->o_size == src->o_size));
378 if ( src->o_valid & OBD_MD_FLATIME )
379 res = (res && (dst->o_atime == src->o_atime));
380 if ( src->o_valid & OBD_MD_FLMTIME )
381 res = (res && (dst->o_mtime == src->o_mtime));
382 if ( src->o_valid & OBD_MD_FLCTIME )
383 res = (res && (dst->o_ctime == src->o_ctime));
384 if ( src->o_valid & OBD_MD_FLFLAGS )
385 res = (res && (dst->o_flags == src->o_flags));
386 /* allocation of space */
387 if ( src->o_valid & OBD_MD_FLBLOCKS )
388 res = (res && (dst->o_blocks == src->o_blocks));
394 int obd_register_type(struct obd_ops *ops, char *nm);
395 int obd_unregister_type(char *nm);
398 struct list_head cli_chain;
399 struct obd_device *cli_obd;
401 unsigned long cli_prealloc_quota;
402 struct list_head cli_prealloc_inodes;
406 struct obd_prealloc_inode {
407 struct list_head obd_prealloc_chain;
411 /* generic operations shared by various OBD types */
412 int gen_multi_setup(struct obd_device *obddev, uint32_t len, void *data);
413 int gen_multi_cleanup(struct obd_device *obddev);
414 int gen_multi_attach(struct obd_device *obddev, uint32_t len, void *data);
415 int gen_multi_detach(struct obd_device *obddev);
416 int gen_connect (struct obd_conn *conn);
417 int gen_disconnect(struct obd_conn *conn);
418 struct obd_client *gen_client(struct obd_conn *);
419 int gen_cleanup(struct obd_device *obddev);
420 int gen_copy_data(struct obd_conn *dst_conn, struct obdo *dst,
421 struct obd_conn *src_conn, struct obdo *src,
422 obd_size count, obd_off offset);
427 * ======== OBD IOCL Declarations ===========
438 /* for preallocation */
439 struct oic_prealloc_s {
441 uint32_t alloc; /* user sets it to the number of inodes
442 * requesting to be preallocated. kernel
443 * sets it to the actual number of
444 * succesfully preallocated inodes */
445 obd_id ids[32]; /* actual inode numbers */
448 /* for getattr, setattr, create, destroy */
454 /* for copy, migrate */
456 unsigned int src_conn_id;
458 unsigned int dst_conn_id;
471 /* for punch, sync */
480 #define OBD_IOC_CREATE _IOR ('f', 3, long)
481 #define OBD_IOC_SETUP _IOW ('f', 4, long)
482 #define OBD_IOC_CLEANUP _IO ('f', 5 )
483 #define OBD_IOC_DESTROY _IOW ('f', 6, long)
484 #define OBD_IOC_PREALLOCATE _IOWR('f', 7, long)
485 #define OBD_IOC_DEC_USE_COUNT _IO ('f', 8 )
486 #define OBD_IOC_SETATTR _IOW ('f', 9, long)
487 #define OBD_IOC_GETATTR _IOR ('f', 10, long)
488 #define OBD_IOC_READ _IOWR('f', 11, long)
489 #define OBD_IOC_WRITE _IOWR('f', 12, long)
490 #define OBD_IOC_CONNECT _IOR ('f', 13, long)
491 #define OBD_IOC_DISCONNECT _IOW ('f', 14, long)
492 #define OBD_IOC_STATFS _IOWR('f', 15, long)
493 #define OBD_IOC_SYNC _IOR ('f', 16, long)
494 #define OBD_IOC_READ2 _IOWR('f', 17, long)
495 #define OBD_IOC_FORMAT _IOWR('f', 18, long)
496 #define OBD_IOC_PARTITION _IOWR('f', 19, long)
497 #define OBD_IOC_ATTACH _IOWR('f', 20, long)
498 #define OBD_IOC_DETACH _IOWR('f', 21, long)
499 #define OBD_IOC_COPY _IOWR('f', 22, long)
500 #define OBD_IOC_MIGR _IOWR('f', 23, long)
502 #define OBD_IOC_DEC_FS_USE_COUNT _IO ('f', 32 )
506 extern void obd_sysctl_init (void);
507 extern void obd_sysctl_clean (void);
509 #define CHKCONN(conn) do { if (!gen_client(conn)) {\
510 printk("%s %d invalid client %u\n", __FILE__, __LINE__, \
512 return -EINVAL; }} while (0)
516 #endif /* __LINUX_CLASS_OBD_H */