1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
6 * This code is issued under the GNU General Public License.
7 * See the file COPYING in this distribution
13 #include <linux/lustre_otree.h>
15 struct lov_oinfo { /* per-child structure */
16 __u64 loi_id; /* object ID on the target OST */
17 struct lustre_handle *loi_handle; /* open file handle for obj on OST */
18 int loi_ost_idx; /* OST stripe index in lmd_objects array */
19 /* tracking offsets per file, per stripe.. */
20 struct otree *loi_dirty_ot; /* lets lov stack on osc */
21 struct otree loi_dirty_ot_inline;
24 struct lov_stripe_md {
26 __u64 lsm_object_id; /* lov object id */
29 /* LOV-private members start here -- only for use in lov/. */
31 __u32 lsm_stripe_size; /* size of the stripe */
32 unsigned lsm_stripe_offset; /* offset of first stripe in lmd_objects */
33 unsigned lsm_stripe_count; /* how many objects are being striped on */
34 struct lov_oinfo lsm_oinfo[0];
37 #define IOC_OSC_TYPE 'h'
38 #define IOC_OSC_MIN_NR 20
39 #define IOC_OSC_REGISTER_LOV _IOWR(IOC_OSC_TYPE, 20, struct obd_device *)
40 #define IOC_OSC_SET_ACTIVE _IOWR(IOC_OSC_TYPE, 21, struct obd_device *)
41 #define IOC_OSC_MAX_NR 50
43 #define IOC_MDC_TYPE 'i'
44 #define IOC_MDC_MIN_NR 20
45 #define IOC_MDC_LOOKUP _IOWR(IOC_MDC_TYPE, 20, struct obd_device *)
46 #define IOC_MDC_MAX_NR 50
49 # include <linux/fs.h>
50 # include <linux/list.h>
51 # include <linux/sched.h> /* for struct task_struct, for current.h */
52 # include <asm/current.h> /* for smp_lock.h */
53 # include <linux/smp_lock.h>
54 # include <linux/proc_fs.h>
56 # include <linux/lustre_lib.h>
57 # include <linux/lustre_idl.h>
58 # include <linux/lustre_mds.h>
59 # include <linux/lustre_export.h>
63 struct list_head typ_chain;
64 struct obd_ops *typ_ops;
65 struct proc_dir_entry *typ_procroot;
77 /* Individual type definitions */
79 struct ost_server_data;
82 const char *fo_fstype;
84 struct super_block *fo_sb;
85 struct vfsmount *fo_vfsmnt;
86 struct obd_run_ctxt fo_ctxt;
87 struct dentry *fo_dentry_O;
88 struct dentry *fo_dentry_O_mode[16];
89 struct dentry **fo_dentry_O_sub;
90 spinlock_t fo_objidlock; /* protect fo_lastobjid increment */
91 spinlock_t fo_translock; /* protect fsd_last_rcvd increment */
92 struct file *fo_rcvd_filp;
93 struct filter_server_data *fo_fsd;
94 unsigned long *fo_last_rcvd_slots;
96 struct file_operations *fo_fop;
97 struct inode_operations *fo_iop;
98 struct address_space_operations *fo_aops;
100 struct list_head fo_export_list;
101 spinlock_t fo_fddlock; /* protect setting dentry->d_fsdata */
103 spinlock_t fo_grant_lock; /* protects tot_granted */
104 obd_size fo_tot_granted;
105 obd_size fo_tot_cached;
108 struct mds_server_data;
111 struct obd_import *cl_import;
112 struct semaphore cl_sem;
114 /* max_mds_easize is purely a performance thing so we don't have to
115 * call obd_size_wiremd() all the time. */
116 int cl_max_mds_easize;
117 struct obd_device *cl_containing_lov;
119 struct semaphore cl_dirty_sem;
120 obd_size cl_dirty; /* both in bytes */
121 obd_size cl_dirty_granted;
122 /* this is just to keep existing infinitely caching behaviour between
123 * clients and OSTs that don't have the grant code in yet.. it can
124 * be yanked once everything speaks grants */
125 char cl_ost_can_grant;
129 struct ptlrpc_service *mds_service;
130 struct ptlrpc_service *mds_setattr_service;
131 struct ptlrpc_service *mds_readpage_service;
133 struct super_block *mds_sb;
134 struct vfsmount *mds_vfsmnt;
135 struct dentry *mds_fid_de;
136 struct obd_run_ctxt mds_ctxt;
137 struct file_operations *mds_fop;
138 struct inode_operations *mds_iop;
139 struct address_space_operations *mds_aops;
142 struct file *mds_rcvd_filp;
143 spinlock_t mds_transno_lock;
144 __u64 mds_last_transno;
145 __u64 mds_mount_count;
146 struct ll_fid mds_rootfid;
147 struct mds_server_data *mds_server_data;
149 int mds_has_lov_desc;
150 struct lov_desc mds_lov_desc;
151 unsigned long *mds_client_bitmap;
155 struct ptlrpc_service *ldlm_cb_service;
156 struct ptlrpc_service *ldlm_cancel_service;
157 struct ptlrpc_client *ldlm_client;
158 struct ptlrpc_connection *ldlm_server_conn;
176 * this struct does double-duty acting as either a client or
177 * server instance .. maybe not wise.
181 struct ptlrpc_service *ptlbd_service;
184 struct ptlrpc_client bd_client;
185 struct obd_import *bd_import;
186 struct obd_uuid bd_server_uuid;
187 struct lustre_handle bd_connect_handle;
188 int refcount; /* XXX sigh */
192 spinlock_t recovd_lock;
193 struct list_head recovd_managed_items; /* items managed */
194 struct list_head recovd_troubled_items; /* items in recovery */
196 wait_queue_head_t recovd_recovery_waitq;
197 wait_queue_head_t recovd_ctl_waitq;
198 wait_queue_head_t recovd_waitq;
199 struct task_struct *recovd_thread;
204 struct ptlrpc_service *ost_service;
207 struct echo_client_obd {
208 struct lustre_handle ec_conn; /* the local connection to osc/lov */
210 struct list_head ec_objects;
217 struct lustre_handle cobd_target; /* local connection to target obd */
218 struct lustre_handle cobd_cache; /* local connection to cache obd */
221 struct lov_tgt_desc {
222 struct obd_uuid uuid;
223 struct lustre_handle conn;
224 int active; /* is this target available for requests, etc */
229 struct obd_device *mdcobd;
230 struct lov_desc desc;
233 struct lov_tgt_desc *tgts;
236 struct niobuf_local {
242 struct dentry *dentry;
246 /* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */
247 #define N_LOCAL_TEMP_PAGE 0x10000000
249 struct obd_trans_info {
251 /* Only used on the server side for tracking acks. */
252 struct oti_req_ack_lock {
253 struct lustre_handle lock;
258 /* corresponds to one of the obd's */
260 struct obd_type *obd_type;
262 /* common and UUID name of this device */
264 struct obd_uuid obd_uuid;
267 int obd_attached:1, obd_set_up:1, obd_recovering:1,
268 obd_abort_recovery:1, obd_replayable:1, obd_no_transno:1,
269 obd_no_recov:1, obd_stopping:1;
270 atomic_t obd_refcount;
271 wait_queue_head_t obd_refcount_waitq;
272 struct proc_dir_entry *obd_proc_entry;
273 struct list_head obd_exports;
275 struct list_head obd_imports;
276 struct ldlm_namespace *obd_namespace;
277 struct ptlrpc_client obd_ldlm_client; /* XXX OST/MDS only */
278 /* a spinlock is OK for what we do now, may need a semaphore later */
279 spinlock_t obd_dev_lock;
280 __u64 obd_last_committed;
281 struct fsfilt_operations *obd_fsops;
283 /* XXX encapsulate all this recovery data into one struct */
284 svc_handler_t obd_recovery_handler;
285 int obd_recoverable_clients;
286 spinlock_t obd_processing_task_lock;
287 pid_t obd_processing_task;
288 __u64 obd_next_recovery_transno;
289 wait_queue_head_t obd_next_transno_waitq;
290 wait_queue_head_t obd_commit_waitq;
291 struct timer_list obd_recovery_timer;
292 struct list_head obd_recovery_queue;
293 struct list_head obd_delayed_reply_queue;
296 struct filter_obd filter;
298 struct client_obd cli;
300 struct echo_client_obd echo_client;;
301 struct ldlm_obd ldlm;
302 struct echo_obd echo;
303 struct recovd_obd recovd;
305 struct cache_obd cobd;
306 struct ptlbd_obd ptlbd;
308 /* Fields used by LProcFS */
309 unsigned int obd_cntr_base;
310 struct lprocfs_stats *obd_stats;
314 struct module *o_owner;
315 int (*o_iocontrol)(unsigned int cmd, struct lustre_handle *, int len,
316 void *karg, void *uarg);
317 int (*o_get_info)(struct lustre_handle *, __u32 keylen, void *key,
318 __u32 *vallen, void *val);
319 int (*o_set_info)(struct lustre_handle *, __u32 keylen, void *key,
320 __u32 vallen, void *val);
321 int (*o_attach)(struct obd_device *dev, obd_count len, void *data);
322 int (*o_detach)(struct obd_device *dev);
323 int (*o_setup) (struct obd_device *dev, obd_count len, void *data);
324 int (*o_cleanup)(struct obd_device *dev, int force, int failover);
325 int (*o_connect)(struct lustre_handle *conn, struct obd_device *src,
326 struct obd_uuid *cluuid);
327 int (*o_disconnect)(struct lustre_handle *conn, int failover);
329 int (*o_statfs)(struct obd_export *exp, struct obd_statfs *osfs);
330 int (*o_syncfs)(struct obd_export *);
331 int (*o_packmd)(struct lustre_handle *, struct lov_mds_md **disk_tgt,
332 struct lov_stripe_md *mem_src);
333 int (*o_unpackmd)(struct lustre_handle *,
334 struct lov_stripe_md **mem_tgt,
335 struct lov_mds_md *disk_src, int disk_len);
336 int (*o_preallocate)(struct lustre_handle *, obd_count *req,
338 int (*o_create)(struct lustre_handle *conn, struct obdo *oa,
339 struct lov_stripe_md **ea, struct obd_trans_info *oti);
340 int (*o_destroy)(struct lustre_handle *conn, struct obdo *oa,
341 struct lov_stripe_md *ea, struct obd_trans_info *oti);
342 int (*o_setattr)(struct lustre_handle *conn, struct obdo *oa,
343 struct lov_stripe_md *ea, struct obd_trans_info *oti);
344 int (*o_getattr)(struct lustre_handle *conn, struct obdo *oa,
345 struct lov_stripe_md *ea);
346 int (*o_getattr_async)(struct lustre_handle *conn, struct obdo *oa,
347 struct lov_stripe_md *ea,
348 struct ptlrpc_request_set *set);
349 int (*o_open)(struct lustre_handle *conn, struct obdo *oa,
350 struct lov_stripe_md *ea, struct obd_trans_info *oti,
351 struct obd_client_handle *och);
352 int (*o_close)(struct lustre_handle *conn, struct obdo *oa,
353 struct lov_stripe_md *ea, struct obd_trans_info *oti);
354 int (*o_brw)(int rw, struct lustre_handle *conn,
355 struct lov_stripe_md *ea, obd_count oa_bufs,
356 struct brw_page *pgarr, struct obd_trans_info *oti);
357 int (*o_brw_async)(int rw, struct lustre_handle *conn,
358 struct lov_stripe_md *ea, obd_count oa_bufs,
359 struct brw_page *pgarr, struct ptlrpc_request_set *,
360 struct obd_trans_info *oti);
361 int (*o_punch)(struct lustre_handle *conn, struct obdo *tgt,
362 struct lov_stripe_md *ea, obd_size count,
363 obd_off offset, struct obd_trans_info *oti);
364 int (*o_sync)(struct lustre_handle *conn, struct obdo *tgt,
365 obd_size count, obd_off offset);
366 int (*o_migrate)(struct lustre_handle *conn, struct obdo *dst,
367 struct obdo *src, obd_size count, obd_off offset);
368 int (*o_copy)(struct lustre_handle *dstconn, struct obdo *dst,
369 struct lustre_handle *srconn, struct obdo *src,
370 obd_size count, obd_off offset, struct obd_trans_info *);
371 int (*o_iterate)(struct lustre_handle *conn,
372 int (*)(obd_id, obd_gr, void *),
373 obd_id *startid, obd_gr group, void *data);
374 int (*o_preprw)(int cmd, struct obd_export *, struct obdo *obdo,
375 int objcount, struct obd_ioobj *obj,
376 int niocount, struct niobuf_remote *remote,
377 struct niobuf_local *local, void **desc_private,
378 struct obd_trans_info *oti);
379 int (*o_commitrw)(int cmd, struct obd_export *,
380 int objcount, struct obd_ioobj *obj,
381 int niocount, struct niobuf_local *local,
382 void *desc_private, struct obd_trans_info *oti);
383 int (*o_enqueue)(struct lustre_handle *conn, struct lov_stripe_md *md,
384 struct lustre_handle *parent_lock,
385 __u32 type, void *cookie, int cookielen, __u32 mode,
386 int *flags, void *cb, void *data,
387 struct lustre_handle *lockh);
388 int (*o_match)(struct lustre_handle *conn, struct lov_stripe_md *md,
389 __u32 type, void *cookie, int cookielen, __u32 mode,
390 int *flags, void *data, struct lustre_handle *lockh);
391 int (*o_cancel)(struct lustre_handle *, struct lov_stripe_md *md,
392 __u32 mode, struct lustre_handle *);
393 int (*o_cancel_unused)(struct lustre_handle *, struct lov_stripe_md *,
394 int local_only, void *opaque);
395 int (*o_san_preprw)(int cmd, struct lustre_handle *conn,
396 int objcount, struct obd_ioobj *obj,
397 int niocount, struct niobuf_remote *remote);
398 int (*o_mark_page_dirty)(struct lustre_handle *conn,
399 struct lov_stripe_md *ea,
400 unsigned long offset);
401 int (*o_clear_dirty_pages)(struct lustre_handle *conn,
402 struct lov_stripe_md *ea,
405 unsigned long *cleared);
406 int (*o_last_dirty_offset)(struct lustre_handle *conn,
407 struct lov_stripe_md *ea,
408 unsigned long *offset);
409 void (*o_destroy_export)(struct obd_export *export);
412 static inline void obd_transno_commit_cb(struct obd_device *obd, __u64 transno,
416 CDEBUG(D_ERROR, "%s: transno "LPD64" commit error: %d\n",
417 obd->obd_name, transno, error);
420 CDEBUG(D_HA, "%s: transno "LPD64" committed\n",
421 obd->obd_name, transno);
422 if (transno > obd->obd_last_committed) {
423 obd->obd_last_committed = transno;
424 wake_up(&obd->obd_commit_waitq);
428 /* When adding a function pointer to struct obd_ops, please update
429 * function lprocfs_alloc_obd_counters() in obdclass/lprocfs_status.c