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_valid & OBD_MD_FLINLINE &&
179 obdo->o_obdflags & OBD_FL_INLINEDATA);
182 static inline int obdo_has_obdmd(struct obdo *obdo)
184 return (obdo->o_valid & OBD_MD_FLOBDMD &&
185 obdo->o_obdflags & OBD_FL_OBDMDEXISTS);
188 /* support routines */
189 extern kmem_cache_t *obdo_cachep;
191 static __inline__ struct obdo *obdo_alloc(void)
193 struct obdo *res = NULL;
195 res = kmem_cache_alloc(obdo_cachep, SLAB_KERNEL);
196 memset(res, 0, sizeof (*res));
201 static __inline__ void obdo_free(struct obdo *oa)
205 kmem_cache_free(obdo_cachep, oa);
210 static __inline__ struct obdo *obdo_fromid(struct obd_conn *conn, obd_id id)
212 struct obdo *res = NULL;
215 res = kmem_cache_alloc(obdo_cachep, SLAB_KERNEL);
218 return ERR_PTR(-ENOMEM);
220 memset(res, 0, sizeof(*res));
222 res->o_valid = OBD_MD_FLALL;
223 if ((err = OBP(conn->oc_dev, getattr)(conn, res))) {
224 OBD_FREE(res, sizeof(*res));
232 static inline void obdo_from_iattr(struct obdo *oa, struct iattr *attr)
234 unsigned int ia_valid = attr->ia_valid;
236 if (ia_valid & ATTR_ATIME) {
237 oa->o_atime = attr->ia_atime;
238 oa->o_valid |= OBD_MD_FLATIME;
240 if (ia_valid & ATTR_MTIME) {
241 oa->o_mtime = attr->ia_mtime;
242 oa->o_valid |= OBD_MD_FLMTIME;
244 if (ia_valid & ATTR_CTIME) {
245 oa->o_ctime = attr->ia_ctime;
246 oa->o_valid |= OBD_MD_FLCTIME;
248 if (ia_valid & ATTR_SIZE) {
249 oa->o_size = attr->ia_size;
250 oa->o_valid |= OBD_MD_FLSIZE;
252 if (ia_valid & ATTR_MODE) {
253 oa->o_mode = attr->ia_mode;
254 oa->o_valid |= OBD_MD_FLMODE;
255 if (!in_group_p(oa->o_gid) && !capable(CAP_FSETID))
256 oa->o_mode &= ~S_ISGID;
258 if (ia_valid & ATTR_UID)
260 oa->o_uid = attr->ia_uid;
261 oa->o_valid |= OBD_MD_FLUID;
263 if (ia_valid & ATTR_GID) {
264 oa->o_gid = attr->ia_gid;
265 oa->o_valid |= OBD_MD_FLGID;
270 static __inline__ void obdo_cpy_md(struct obdo *dst, struct obdo *src)
272 CDEBUG(D_INODE, "src obdo %Ld valid 0x%x, dst obdo %Ld\n",
273 src->o_id, src->o_valid, dst->o_id);
274 if ( src->o_valid & OBD_MD_FLATIME )
275 dst->o_atime = src->o_atime;
276 if ( src->o_valid & OBD_MD_FLMTIME )
277 dst->o_mtime = src->o_mtime;
278 if ( src->o_valid & OBD_MD_FLCTIME )
279 dst->o_ctime = src->o_ctime;
280 if ( src->o_valid & OBD_MD_FLSIZE )
281 dst->o_size = src->o_size;
282 if ( src->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
283 dst->o_blocks = src->o_blocks;
284 if ( src->o_valid & OBD_MD_FLBLKSZ )
285 dst->o_blksize = src->o_blksize;
286 if ( src->o_valid & OBD_MD_FLMODE )
287 dst->o_mode = src->o_mode;
288 if ( src->o_valid & OBD_MD_FLUID )
289 dst->o_uid = src->o_uid;
290 if ( src->o_valid & OBD_MD_FLGID )
291 dst->o_gid = src->o_gid;
292 if ( src->o_valid & OBD_MD_FLFLAGS )
293 dst->o_flags = src->o_flags;
294 if ( src->o_valid & OBD_MD_FLOBDFLG )
295 dst->o_obdflags = src->o_obdflags;
296 if ( src->o_valid & OBD_MD_FLNLINK )
297 dst->o_nlink = src->o_nlink;
298 if ( src->o_valid & OBD_MD_FLGENER )
299 dst->o_generation = src->o_generation;
300 if ( src->o_valid & OBD_MD_FLINLINE )
301 memcpy(dst->o_inline, src->o_inline, sizeof(src->o_inline));
302 if ( src->o_valid & OBD_MD_FLOBDMD )
303 memcpy(dst->o_obdmd, src->o_obdmd, sizeof(src->o_obdmd));
305 dst->o_valid |= src->o_valid;
308 static __inline__ void obdo_from_inode(struct obdo *dst, struct inode *src)
310 CDEBUG(D_INODE, "src inode %ld, dst obdo %Ld valid 0x%08x\n",
311 src->i_ino, dst->o_id, dst->o_valid);
312 if ( dst->o_valid & OBD_MD_FLID )
313 dst->o_id = src->i_ino;
314 if ( dst->o_valid & OBD_MD_FLATIME )
315 dst->o_atime = src->i_atime;
316 if ( dst->o_valid & OBD_MD_FLMTIME )
317 dst->o_mtime = src->i_mtime;
318 if ( dst->o_valid & OBD_MD_FLCTIME )
319 dst->o_ctime = src->i_ctime;
320 if ( dst->o_valid & OBD_MD_FLSIZE )
321 dst->o_size = src->i_size;
322 if ( dst->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
323 dst->o_blocks = src->i_blocks;
324 if ( dst->o_valid & OBD_MD_FLBLKSZ )
325 dst->o_blksize = src->i_blksize;
326 if ( dst->o_valid & OBD_MD_FLMODE )
327 dst->o_mode = src->i_mode;
328 if ( dst->o_valid & OBD_MD_FLUID )
329 dst->o_uid = src->i_uid;
330 if ( dst->o_valid & OBD_MD_FLGID )
331 dst->o_gid = src->i_gid;
332 if ( dst->o_valid & OBD_MD_FLFLAGS )
333 dst->o_flags = src->i_flags;
334 if ( dst->o_valid & OBD_MD_FLNLINK )
335 dst->o_nlink = src->i_nlink;
336 if ( dst->o_valid & OBD_MD_FLGENER )
337 dst->o_generation = src->i_generation;
340 static __inline__ void obdo_to_inode(struct inode *dst, struct obdo *src)
343 CDEBUG(D_INODE, "src obdo %Ld valid 0x%08x, dst inode %ld\n",
344 src->o_id, src->o_valid, dst->i_ino);
345 if ( src->o_valid & OBD_MD_FLID )
346 dst->i_ino = src->o_id;
347 if ( src->o_valid & OBD_MD_FLATIME )
348 dst->i_atime = src->o_atime;
349 if ( src->o_valid & OBD_MD_FLMTIME )
350 dst->i_mtime = src->o_mtime;
351 if ( src->o_valid & OBD_MD_FLCTIME )
352 dst->i_ctime = src->o_ctime;
353 if ( src->o_valid & OBD_MD_FLSIZE )
354 dst->i_size = src->o_size;
355 if ( src->o_valid & OBD_MD_FLBLOCKS ) /* allocation of space */
356 dst->i_blocks = src->o_blocks;
357 if ( src->o_valid & OBD_MD_FLBLKSZ )
358 dst->i_blksize = src->o_blksize;
359 if ( src->o_valid & OBD_MD_FLMODE )
360 dst->i_mode = src->o_mode;
361 if ( src->o_valid & OBD_MD_FLUID )
362 dst->i_uid = src->o_uid;
363 if ( src->o_valid & OBD_MD_FLGID )
364 dst->i_gid = src->o_gid;
365 if ( src->o_valid & OBD_MD_FLFLAGS )
366 dst->i_flags = src->o_flags;
367 if ( src->o_valid & OBD_MD_FLNLINK )
368 dst->i_nlink = src->o_nlink;
369 if ( src->o_valid & OBD_MD_FLGENER )
370 dst->i_generation = src->o_generation;
373 /* returns FALSE if comparison (by flags) is same, TRUE if changed */
374 static __inline__ int obdo_cmp_md(struct obdo *dst, struct obdo *src,
379 if ( compare & OBD_MD_FLATIME )
380 res = (res || (dst->o_atime != src->o_atime));
381 if ( compare & OBD_MD_FLMTIME )
382 res = (res || (dst->o_mtime != src->o_mtime));
383 if ( compare & OBD_MD_FLCTIME )
384 res = (res || (dst->o_ctime != src->o_ctime));
385 if ( compare & OBD_MD_FLSIZE )
386 res = (res || (dst->o_size != src->o_size));
387 if ( compare & OBD_MD_FLBLOCKS ) /* allocation of space */
388 res = (res || (dst->o_blocks != src->o_blocks));
389 if ( compare & OBD_MD_FLBLKSZ )
390 res = (res || (dst->o_blksize != src->o_blksize));
391 if ( compare & OBD_MD_FLMODE )
392 res = (res || (dst->o_mode != src->o_mode));
393 if ( compare & OBD_MD_FLUID )
394 res = (res || (dst->o_uid != src->o_uid));
395 if ( compare & OBD_MD_FLGID )
396 res = (res || (dst->o_gid != src->o_gid));
397 if ( compare & OBD_MD_FLFLAGS )
398 res = (res || (dst->o_flags != src->o_flags));
399 if ( compare & OBD_MD_FLNLINK )
400 res = (res || (dst->o_nlink != src->o_nlink));
401 if ( compare & OBD_MD_FLGENER )
402 res = (res || (dst->o_generation != src->o_generation));
403 /* XXX Don't know if thses should be included here - wasn't previously
404 if ( compare & OBD_MD_FLINLINE )
405 res = (res || memcmp(dst->o_inline, src->o_inline));
406 if ( compare & OBD_MD_FLOBDMD )
407 res = (res || memcmp(dst->o_obdmd, src->o_obdmd));
414 int obd_register_type(struct obd_ops *ops, char *nm);
415 int obd_unregister_type(char *nm);
418 struct list_head cli_chain;
419 struct obd_device *cli_obd;
421 unsigned long cli_prealloc_quota;
422 struct list_head cli_prealloc_inodes;
426 struct obd_prealloc_inode {
427 struct list_head obd_prealloc_chain;
431 /* generic operations shared by various OBD types */
432 int gen_multi_setup(struct obd_device *obddev, uint32_t len, void *data);
433 int gen_multi_cleanup(struct obd_device *obddev);
434 int gen_multi_attach(struct obd_device *obddev, uint32_t len, void *data);
435 int gen_multi_detach(struct obd_device *obddev);
436 int gen_connect (struct obd_conn *conn);
437 int gen_disconnect(struct obd_conn *conn);
438 struct obd_client *gen_client(struct obd_conn *);
439 int gen_cleanup(struct obd_device *obddev);
440 int gen_copy_data(struct obd_conn *dst_conn, struct obdo *dst,
441 struct obd_conn *src_conn, struct obdo *src,
442 obd_size count, obd_off offset);
447 * ======== OBD IOCL Declarations ===========
458 /* for preallocation */
459 struct oic_prealloc_s {
461 uint32_t alloc; /* user sets it to the number of inodes
462 * requesting to be preallocated. kernel
463 * sets it to the actual number of
464 * succesfully preallocated inodes */
465 obd_id ids[32]; /* actual inode numbers */
468 /* for getattr, setattr, create, destroy */
474 /* for copy, migrate */
476 uint32_t src_conn_id;
478 uint32_t dst_conn_id;
491 /* for punch, sync */
500 #define OBD_IOC_CREATE _IOR ('f', 3, long)
501 #define OBD_IOC_SETUP _IOW ('f', 4, long)
502 #define OBD_IOC_CLEANUP _IO ('f', 5 )
503 #define OBD_IOC_DESTROY _IOW ('f', 6, long)
504 #define OBD_IOC_PREALLOCATE _IOWR('f', 7, long)
505 #define OBD_IOC_DEC_USE_COUNT _IO ('f', 8 )
506 #define OBD_IOC_SETATTR _IOW ('f', 9, long)
507 #define OBD_IOC_GETATTR _IOR ('f', 10, long)
508 #define OBD_IOC_READ _IOWR('f', 11, long)
509 #define OBD_IOC_WRITE _IOWR('f', 12, long)
510 #define OBD_IOC_CONNECT _IOR ('f', 13, long)
511 #define OBD_IOC_DISCONNECT _IOW ('f', 14, long)
512 #define OBD_IOC_STATFS _IOWR('f', 15, long)
513 #define OBD_IOC_SYNC _IOR ('f', 16, long)
514 #define OBD_IOC_READ2 _IOWR('f', 17, long)
515 #define OBD_IOC_FORMAT _IOWR('f', 18, long)
516 #define OBD_IOC_PARTITION _IOWR('f', 19, long)
517 #define OBD_IOC_ATTACH _IOWR('f', 20, long)
518 #define OBD_IOC_DETACH _IOWR('f', 21, long)
519 #define OBD_IOC_COPY _IOWR('f', 22, long)
520 #define OBD_IOC_MIGR _IOWR('f', 23, long)
522 #define OBD_IOC_DEC_FS_USE_COUNT _IO ('f', 32 )
526 extern void obd_sysctl_init (void);
527 extern void obd_sysctl_clean (void);
529 #define CHKCONN(conn) do { if (!gen_client(conn)) {\
530 printk("%s %d invalid client %u\n", __FILE__, __LINE__, \
532 return -EINVAL; }} while (0)
536 #endif /* __LINUX_CLASS_OBD_H */