1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2002, 2003 Cluster File Systems, Inc.
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 #include <linux/version.h>
28 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
29 #include <linux/tqueue.h>
31 #include <linux/workqueue.h>
35 #include <linux/kp30.h>
36 // #include <linux/obd.h>
37 #include <portals/p30.h>
38 #include <linux/lustre_idl.h>
39 #include <linux/lustre_ha.h>
40 #include <linux/lustre_import.h>
41 #include <linux/lprocfs_status.h>
43 /* MD flags we _always_ use */
44 #define PTLRPC_MD_OPTIONS (PTL_MD_EVENT_START_DISABLE | \
45 PTL_MD_LUSTRE_COMPLETION_SEMANTICS)
47 /* Define some large-ish maxima for bulk I/O
48 * CAVEAT EMPTOR, with multinet (i.e. gateways forwarding between networks)
49 * these limits are system wide and not interface-local. */
50 #define PTLRPC_MAX_BRW_SIZE (1 << 20)
51 #define PTLRPC_MAX_BRW_PAGES 512
53 /* ...reduce to fit... */
56 /* include a cray header here if relevant
57 * NB liblustre SIZE/PAGES is affected too, but it merges contiguous
58 * chunks, so FTTB, it always used contiguous MDs */
60 # include <portals/lib-types.h>
63 #if (defined(PTL_MTU) && (PTL_MTU < PTLRPC_MAX_BRW_SIZE))
64 # undef PTLRPC_MAX_BRW_SIZE
65 # define PTLRPC_MAX_BRW_SIZE PTL_MTU
67 #if (defined(PTL_MD_MAX_IOV) && (PTL_MD_MAX_IOV < PTLRPC_MAX_BRW_PAGES ))
68 # undef PTLRPC_MAX_BRW_PAGES
69 # define PTLRPC_MAX_BRW_PAGES PTL_MD_MAX_IOV
72 /* ...and make consistent... */
74 #if (PTLRPC_MAX_BRW_SIZE > PTLRPC_MAX_BRW_PAGES * PAGE_SIZE)
75 # undef PTLRPC_MAX_BRW_SIZE
76 # define PTLRPC_MAX_BRW_SIZE (PTLRPC_MAX_BRW_PAGES * PAGE_SIZE)
78 # undef PTLRPC_MAX_BRW_PAGES
79 # define PTLRPC_MAX_BRW_PAGES (PTLRPC_MAX_BRW_SIZE / PAGE_SIZE)
82 #if ((PTLRPC_MAX_BRW_PAGES & (PTLRPC_MAX_BRW_PAGES - 1)) != 0)
83 #error "PTLRPC_MAX_BRW_PAGES isn't a power of two"
86 /* Size over which to OBD_VMALLOC() rather than OBD_ALLOC() service request
88 #define SVC_BUF_VMALLOC_THRESHOLD (2*PAGE_SIZE)
90 /* The following constants determine how much memory is devoted to
91 * buffering in the lustre services.
93 * ?_NEVENTS # event queue entries
95 * ?_NBUFS # request buffers
96 * ?_BUFSIZE # bytes in a single request buffer
97 * total memory = ?_NBUFS * ?_BUFSIZE
99 * ?_MAXREQSIZE # maximum request service will receive
100 * messages larger than ?_MAXREQSIZE are dropped.
101 * request buffers are auto-unlinked when less than ?_MAXREQSIZE
105 #define LDLM_NUM_THREADS min(smp_num_cpus * smp_num_cpus * 8, 64)
106 #define LDLM_NBUF_MAX 512UL
107 #define LDLM_BUFSIZE (8 * 1024)
108 #define LDLM_MAXREQSIZE (5 * 1024)
109 #define LDLM_MAXMEM (num_physpages*(PAGE_SIZE/1024))
110 #define LDLM_NBUFS min(LDLM_MAXMEM/LDLM_BUFSIZE, LDLM_NBUF_MAX)
112 #define MDT_MAX_THREADS 32UL
113 #define MDT_NUM_THREADS max(min_t(unsigned long, num_physpages / 8192, \
114 MDT_MAX_THREADS), 2UL)
115 #define MDS_NBUF_MAX 4096UL
116 #define MDS_BUFSIZE (8 * 1024)
117 /* Assume file name length = FNAME_MAX = 256 (true for extN).
118 * path name length = PATH_MAX = 4096
119 * LOV MD size max = EA_MAX = 4000
120 * symlink: FNAME_MAX + PATH_MAX <- largest
121 * link: FNAME_MAX + PATH_MAX (mds_rec_link < mds_rec_create)
122 * rename: FNAME_MAX + FNAME_MAX
123 * open: FNAME_MAX + EA_MAX
125 * MDS_MAXREQSIZE ~= 4736 bytes =
126 * lustre_msg + ldlm_request + mds_body + mds_rec_create + FNAME_MAX + PATH_MAX
128 * Realistic size is about 512 bytes (20 character name + 128 char symlink),
129 * except in the open case where there are a large number of OSTs in a LOV.
131 #define MDS_MAXREQSIZE (5 * 1024)
132 #define MDS_MAXMEM (num_physpages*(PAGE_SIZE/128))
133 #define MDS_NBUFS min(MDS_MAXMEM/MDS_BUFSIZE, MDS_NBUF_MAX)
135 #define OST_MAX_THREADS 36UL
136 #define OST_NUM_THREADS max(min_t(unsigned long, num_physpages / 8192, \
137 OST_MAX_THREADS), 2UL)
138 #define OST_NBUF_MAX 5000UL
139 #define OST_BUFSIZE (8 * 1024)
140 /* OST_MAXREQSIZE ~= 1640 bytes =
141 * lustre_msg + obdo + 16 * obd_ioobj + 64 * niobuf_remote
143 * - single object with 16 pages is 512 bytes
144 * - OST_MAXREQSIZE must be at least 1 page of cookies plus some spillover
146 #define OST_MAXREQSIZE (5 * 1024)
147 #define OST_MAXMEM (num_physpages*(PAGE_SIZE/128))
148 #define OST_NBUFS min(OST_MAXMEM/OST_BUFSIZE, OST_NBUF_MAX)
150 #define PTLBD_NUM_THREADS 4
151 #define PTLBD_NBUFS 20
152 #define PTLBD_BUFSIZE (32 * 1024)
153 #define PTLBD_MAXREQSIZE 1024
157 struct ptlrpc_ni *peer_ni;
160 struct ptlrpc_connection {
161 struct list_head c_link;
162 struct ptlrpc_peer c_peer;
163 struct obd_uuid c_remote_uuid;
167 struct ptlrpc_client {
168 __u32 cli_request_portal;
169 __u32 cli_reply_portal;
173 /* state flags of requests */
174 /* XXX only ones left are those used by the bulk descs as well! */
175 #define PTL_RPC_FL_INTR (1 << 0) /* reply wait was interrupted by user */
176 #define PTL_RPC_FL_TIMEOUT (1 << 7) /* request timed out waiting for reply */
178 #define REQ_MAX_ACK_LOCKS 8
180 #define SWAB_PARANOIA 1
182 /* unpacking: assert idx not unpacked already */
183 #define LASSERT_REQSWAB(rq, idx) \
185 LASSERT ((idx) < sizeof ((rq)->rq_req_swab_mask) * 8); \
186 LASSERT (((rq)->rq_req_swab_mask & (1 << (idx))) == 0); \
187 (rq)->rq_req_swab_mask |= (1 << (idx)); \
190 #define LASSERT_REPSWAB(rq, idx) \
192 LASSERT ((idx) < sizeof ((rq)->rq_rep_swab_mask) * 8); \
193 LASSERT (((rq)->rq_rep_swab_mask & (1 << (idx))) == 0); \
194 (rq)->rq_rep_swab_mask |= (1 << (idx)); \
197 /* just looking: assert idx already unpacked */
198 #define LASSERT_REQSWABBED(rq, idx) \
199 LASSERT ((idx) < sizeof ((rq)->rq_req_swab_mask) * 8 && \
200 ((rq)->rq_req_swab_mask & (1 << (idx))) != 0)
202 #define LASSERT_REPSWABBED(rq, idx) \
203 LASSERT ((idx) < sizeof ((rq)->rq_rep_swab_mask) * 8 && \
204 ((rq)->rq_rep_swab_mask & (1 << (idx))) != 0)
206 #define LASSERT_REQSWAB(rq, idx)
207 #define LASSERT_REPSWAB(rq, idx)
208 #define LASSERT_REQSWABBED(rq, idx)
209 #define LASSERT_REPSWABBED(rq, idx)
212 union ptlrpc_async_args {
213 /* Scratchpad for passing args to completion interpreter. Users
214 * cast to the struct of their choosing, and LASSERT that this is
215 * big enough. For _tons_ of context, OBD_ALLOC a struct and store
216 * a pointer to it here. The pointer_arg ensures this struct is at
217 * least big enough for that. */
218 void *pointer_arg[9];
222 struct ptlrpc_request_set;
223 typedef int (*set_interpreter_func)(struct ptlrpc_request_set *, void *, int);
225 struct ptlrpc_request_set {
226 int set_remaining; /* # uncompleted requests */
227 wait_queue_head_t set_waitq;
228 wait_queue_head_t *set_wakeup_ptr;
229 struct list_head set_requests;
230 set_interpreter_func set_interpret; /* completion callback */
231 union ptlrpc_async_args set_args; /* completion context */
232 /* locked so that any old caller can communicate requests to
233 * the set holder who can then fold them into the lock-free set */
234 spinlock_t set_new_req_lock;
235 struct list_head set_new_requests;
238 struct ptlrpc_bulk_desc;
241 * ptlrpc callback & work item stuff
243 struct ptlrpc_cb_id {
244 void (*cbid_fn)(ptl_event_t *ev); /* specific callback fn */
245 void *cbid_arg; /* additional arg */
248 #define RS_MAX_LOCKS 4
251 struct ptlrpc_reply_state {
252 struct ptlrpc_cb_id rs_cb_id;
253 struct list_head rs_list;
254 struct list_head rs_exp_list;
255 struct list_head rs_obd_list;
257 struct list_head rs_debug_list;
259 /* updates to following flag serialised by srv_request_lock */
260 unsigned int rs_difficult:1; /* ACK/commit stuff */
261 unsigned int rs_scheduled:1; /* being handled? */
262 unsigned int rs_scheduled_ever:1; /* any schedule attempts? */
263 unsigned int rs_handled:1; /* been handled yet? */
264 unsigned int rs_on_net:1; /* reply_out_callback pending? */
269 struct obd_export *rs_export;
270 struct ptlrpc_srv_ni *rs_srv_ni;
271 ptl_handle_md_t rs_md_h;
273 /* locks awaiting client reply ACK */
275 struct lustre_handle rs_locks[RS_MAX_LOCKS];
276 ldlm_mode_t rs_modes[RS_MAX_LOCKS];
277 struct llog_create_locks *rs_llog_locks;
279 /* last member: variable sized reply message */
280 struct lustre_msg rs_msg;
283 struct ptlrpc_request {
284 int rq_type; /* one of PTL_RPC_MSG_* */
285 struct list_head rq_list;
288 /* client-side flags */
289 unsigned int rq_intr:1, rq_replied:1, rq_err:1,
290 rq_timedout:1, rq_resend:1, rq_restart:1, rq_replay:1,
291 rq_no_resend:1, rq_waiting:1, rq_receiving_reply:1,
292 rq_no_delay:1, rq_net_err:1;
294 /* client-side refcount for SENT race */
295 atomic_t rq_refcount;
297 int rq_request_portal; /* XXX FIXME bug 249 */
298 int rq_reply_portal; /* XXX FIXME bug 249 */
300 /* client-side # reply bytes actually received */
304 struct lustre_msg *rq_reqmsg;
308 struct lustre_msg *rq_repmsg;
311 struct list_head rq_replay_list;
314 __u32 rq_req_swab_mask;
315 __u32 rq_rep_swab_mask;
318 int rq_import_generation;
319 enum lustre_imp_state rq_send_state;
321 /* client+server request */
322 ptl_handle_md_t rq_req_md_h;
323 struct ptlrpc_cb_id rq_req_cbid;
326 struct timeval rq_arrival_time; /* request arrival time */
327 struct ptlrpc_reply_state *rq_reply_state; /* separated reply state */
328 struct ptlrpc_request_buffer_desc *rq_rqbd; /* incoming request buffer */
330 /* client-only incoming reply */
331 ptl_handle_md_t rq_reply_md_h;
332 wait_queue_head_t rq_reply_waitq;
333 struct ptlrpc_cb_id rq_reply_cbid;
335 struct ptlrpc_peer rq_peer; /* XXX see service.c can this be factored away? */
336 struct obd_export *rq_export;
337 struct obd_import *rq_import;
339 void (*rq_replay_cb)(struct ptlrpc_request *);
340 void (*rq_commit_cb)(struct ptlrpc_request *);
343 struct ptlrpc_bulk_desc *rq_bulk; /* client side bulk */
344 time_t rq_sent; /* when the request was sent */
347 struct list_head rq_set_chain;
348 struct ptlrpc_request_set *rq_set;
349 void *rq_interpret_reply; /* Async completion handler */
350 union ptlrpc_async_args rq_async_args; /* Async completion context */
351 void * rq_ptlrpcd_data;
355 #define RQ_PHASE_NEW 0xebc0de00
356 #define RQ_PHASE_RPC 0xebc0de01
357 #define RQ_PHASE_BULK 0xebc0de02
358 #define RQ_PHASE_INTERPRET 0xebc0de03
359 #define RQ_PHASE_COMPLETE 0xebc0de04
361 /* Spare the preprocessor, spoil the bugs. */
362 #define FLAG(field, str) (field ? str : "")
364 #define DEBUG_REQ_FLAGS(req) \
365 ((req->rq_phase == RQ_PHASE_NEW) ? "New" : \
366 (req->rq_phase == RQ_PHASE_RPC) ? "Rpc" : \
367 (req->rq_phase == RQ_PHASE_INTERPRET) ? "Interpret" : \
368 (req->rq_phase == RQ_PHASE_COMPLETE) ? "Complete" : "?phase?"), \
369 FLAG(req->rq_intr, "I"), FLAG(req->rq_replied, "R"), \
370 FLAG(req->rq_err, "E"), \
371 FLAG(req->rq_timedout, "X") /* eXpired */, FLAG(req->rq_resend, "S"), \
372 FLAG(req->rq_restart, "T"), FLAG(req->rq_replay, "P"), \
373 FLAG(req->rq_no_resend, "N"), \
374 FLAG(req->rq_waiting, "W")
376 #define REQ_FLAGS_FMT "%s:%s%s%s%s%s%s%s%s%s"
378 #define DEBUG_REQ(level, req, fmt, args...) \
380 CDEBUG(level, "@@@ " fmt \
381 " req@%p x"LPD64"/t"LPD64" o%d->%s@%s:%d lens %d/%d ref %d fl " \
382 REQ_FLAGS_FMT"/%x/%x rc %d/%d\n" , ## args, req, req->rq_xid, \
384 req->rq_reqmsg ? req->rq_reqmsg->opc : -1, \
385 req->rq_import ? (char *)req->rq_import->imp_target_uuid.uuid : "<?>", \
387 (char *)req->rq_import->imp_connection->c_remote_uuid.uuid : "<?>", \
388 (req->rq_import && req->rq_import->imp_client) ? \
389 req->rq_import->imp_client->cli_request_portal : -1, \
390 req->rq_reqlen, req->rq_replen, \
391 atomic_read(&req->rq_refcount), \
392 DEBUG_REQ_FLAGS(req), \
393 req->rq_reqmsg ? req->rq_reqmsg->flags : 0, \
394 req->rq_repmsg ? req->rq_repmsg->flags : 0, \
395 req->rq_status, req->rq_repmsg ? req->rq_repmsg->status : 0); \
398 struct ptlrpc_bulk_page {
399 struct list_head bp_link;
401 int bp_pageoffset; /* offset within a page */
402 struct page *bp_page;
405 #define BULK_GET_SOURCE 0
406 #define BULK_PUT_SINK 1
407 #define BULK_GET_SINK 2
408 #define BULK_PUT_SOURCE 3
410 struct ptlrpc_bulk_desc {
411 unsigned int bd_success:1; /* completed successfully */
412 unsigned int bd_network_rw:1; /* accessible to the network */
413 unsigned int bd_type:2; /* {put,get}{source,sink} */
414 unsigned int bd_registered:1; /* client side */
415 spinlock_t bd_lock; /* serialise with callback */
416 int bd_import_generation;
417 struct obd_export *bd_export;
418 struct obd_import *bd_import;
420 struct ptlrpc_request *bd_req; /* associated request */
421 wait_queue_head_t bd_waitq; /* server side only WQ */
422 int bd_iov_count; /* # entries in bd_iov */
423 int bd_max_iov; /* allocated size of bd_iov */
424 int bd_nob; /* # bytes covered */
425 int bd_nob_transferred; /* # bytes GOT/PUT */
429 struct ptlrpc_cb_id bd_cbid; /* network callback info */
430 ptl_handle_md_t bd_md_h; /* associated MD */
432 #if (!CRAY_PORTALS && defined(__KERNEL__))
433 ptl_kiov_t bd_iov[0];
435 ptl_md_iovec_t bd_iov[0];
439 struct ptlrpc_thread {
440 struct list_head t_link;
443 wait_queue_head_t t_ctl_waitq;
446 struct ptlrpc_request_buffer_desc {
447 struct list_head rqbd_list;
448 struct ptlrpc_srv_ni *rqbd_srv_ni;
449 ptl_handle_md_t rqbd_md_h;
452 struct ptlrpc_cb_id rqbd_cbid;
453 struct ptlrpc_request rqbd_req;
456 /* event queues are per-ni, because one day we may get a hardware
457 * supported NAL that delivers events asynchonously wrt kernel portals
460 struct ptlrpc_ni { /* Generic interface state */
463 ptl_handle_ni_t pni_ni_h;
464 ptl_handle_eq_t pni_eq_h;
467 struct ptlrpc_srv_ni {
468 /* Interface-specific service state */
469 struct ptlrpc_service *sni_service; /* owning service */
470 struct ptlrpc_ni *sni_ni; /* network interface */
471 struct list_head sni_active_rqbds; /* req buffers receiving */
472 struct list_head sni_active_replies; /* all the active replies */
473 int sni_nrqbd_receiving; /* # posted request buffers */
476 typedef int (*svc_handler_t)(struct ptlrpc_request *req);
478 struct ptlrpc_service {
479 struct list_head srv_list; /* chain thru all services */
480 int srv_max_req_size; /* biggest request to receive */
481 int srv_buf_size; /* size of individual buffers */
482 int srv_nbufs; /* total # req buffer descs allocated */
483 int srv_nthreads; /* # running threads */
484 int srv_n_difficult_replies; /* # 'difficult' replies */
485 int srv_n_active_reqs; /* # reqs being served */
486 int srv_rqbd_timeout; /* timeout before re-posting reqs */
488 __u32 srv_req_portal;
489 __u32 srv_rep_portal;
491 int srv_n_queued_reqs; /* # reqs waiting to be served */
492 struct list_head srv_request_queue; /* reqs waiting for service */
494 struct list_head srv_idle_rqbds; /* request buffers to be reposted */
496 atomic_t srv_outstanding_replies;
497 struct list_head srv_reply_queue; /* replies waiting for service */
499 wait_queue_head_t srv_waitq; /* all threads sleep on this */
501 struct list_head srv_threads;
502 struct obd_device *srv_obddev;
503 svc_handler_t srv_handler;
505 char *srv_name; /* only statically allocated strings here; we don't clean them */
509 struct proc_dir_entry *srv_procroot;
510 struct lprocfs_stats *srv_stats;
512 struct ptlrpc_srv_ni srv_interfaces[0];
515 static inline char *ptlrpc_peernid2str(struct ptlrpc_peer *p, char *str)
517 LASSERT(p->peer_ni != NULL);
518 return (portals_nid2str(p->peer_ni->pni_number, p->peer_nid, str));
521 /* ptlrpc/events.c */
522 extern struct ptlrpc_ni ptlrpc_interfaces[];
523 extern int ptlrpc_ninterfaces;
524 extern int ptlrpc_uuid_to_peer(struct obd_uuid *uuid, struct ptlrpc_peer *peer);
525 extern void request_out_callback (ptl_event_t *ev);
526 extern void reply_in_callback(ptl_event_t *ev);
527 extern void client_bulk_callback (ptl_event_t *ev);
528 extern void request_in_callback(ptl_event_t *ev);
529 extern void reply_out_callback(ptl_event_t *ev);
530 extern void server_bulk_callback (ptl_event_t *ev);
531 extern int ptlrpc_default_nal(void);
533 /* ptlrpc/connection.c */
534 void ptlrpc_dump_connections(void);
535 void ptlrpc_readdress_connection(struct ptlrpc_connection *, struct obd_uuid *);
536 struct ptlrpc_connection *ptlrpc_get_connection(struct ptlrpc_peer *peer,
537 struct obd_uuid *uuid);
538 int ptlrpc_put_connection(struct ptlrpc_connection *c);
539 struct ptlrpc_connection *ptlrpc_connection_addref(struct ptlrpc_connection *);
540 void ptlrpc_init_connection(void);
541 void ptlrpc_cleanup_connection(void);
543 /* ptlrpc/niobuf.c */
544 int ptlrpc_start_bulk_transfer(struct ptlrpc_bulk_desc *desc);
545 void ptlrpc_abort_bulk(struct ptlrpc_bulk_desc *desc);
546 int ptlrpc_register_bulk(struct ptlrpc_request *req);
547 void ptlrpc_unregister_bulk (struct ptlrpc_request *req);
549 static inline int ptlrpc_bulk_active (struct ptlrpc_bulk_desc *desc)
554 spin_lock_irqsave (&desc->bd_lock, flags);
555 rc = desc->bd_network_rw;
556 spin_unlock_irqrestore (&desc->bd_lock, flags);
560 int ptlrpc_send_reply(struct ptlrpc_request *req, int);
561 int ptlrpc_reply(struct ptlrpc_request *req);
562 int ptlrpc_error(struct ptlrpc_request *req);
563 void ptlrpc_resend_req(struct ptlrpc_request *request);
564 int ptl_send_rpc(struct ptlrpc_request *request);
565 int ptlrpc_register_rqbd (struct ptlrpc_request_buffer_desc *rqbd);
567 /* ptlrpc/client.c */
568 void ptlrpc_init_client(int req_portal, int rep_portal, char *name,
569 struct ptlrpc_client *);
570 void ptlrpc_cleanup_client(struct obd_import *imp);
571 struct ptlrpc_connection *ptlrpc_uuid_to_connection(struct obd_uuid *uuid);
574 ptlrpc_client_receiving_reply (struct ptlrpc_request *req)
579 spin_lock_irqsave(&req->rq_lock, flags);
580 rc = req->rq_receiving_reply;
581 spin_unlock_irqrestore(&req->rq_lock, flags);
586 ptlrpc_client_replied (struct ptlrpc_request *req)
591 spin_lock_irqsave(&req->rq_lock, flags);
592 rc = req->rq_replied;
593 spin_unlock_irqrestore(&req->rq_lock, flags);
598 ptlrpc_wake_client_req (struct ptlrpc_request *req)
600 if (req->rq_set == NULL)
601 wake_up(&req->rq_reply_waitq);
603 wake_up(&req->rq_set->set_waitq);
606 int ptlrpc_queue_wait(struct ptlrpc_request *req);
607 int ptlrpc_replay_req(struct ptlrpc_request *req);
608 void ptlrpc_unregister_reply(struct ptlrpc_request *req);
609 void ptlrpc_restart_req(struct ptlrpc_request *req);
610 void ptlrpc_abort_inflight(struct obd_import *imp);
612 struct ptlrpc_request_set *ptlrpc_prep_set(void);
613 int ptlrpc_set_next_timeout(struct ptlrpc_request_set *);
614 int ptlrpc_check_set(struct ptlrpc_request_set *set);
615 int ptlrpc_set_wait(struct ptlrpc_request_set *);
616 int ptlrpc_expired_set(void *data);
617 void ptlrpc_interrupted_set(void *data);
618 void ptlrpc_mark_interrupted(struct ptlrpc_request *req);
619 void ptlrpc_set_destroy(struct ptlrpc_request_set *);
620 void ptlrpc_set_add_req(struct ptlrpc_request_set *, struct ptlrpc_request *);
621 void ptlrpc_set_add_new_req(struct ptlrpc_request_set *,
622 struct ptlrpc_request *);
624 struct ptlrpc_request *ptlrpc_prep_req(struct obd_import *imp, int opcode,
625 int count, int *lengths, char **bufs);
626 void ptlrpc_free_req(struct ptlrpc_request *request);
627 void ptlrpc_req_finished(struct ptlrpc_request *request);
628 void ptlrpc_req_finished_with_imp_lock(struct ptlrpc_request *request);
629 struct ptlrpc_request *ptlrpc_request_addref(struct ptlrpc_request *req);
630 struct ptlrpc_bulk_desc *ptlrpc_prep_bulk_imp (struct ptlrpc_request *req,
631 int npages, int type, int portal);
632 struct ptlrpc_bulk_desc *ptlrpc_prep_bulk_exp(struct ptlrpc_request *req,
633 int npages, int type, int portal);
634 void ptlrpc_free_bulk(struct ptlrpc_bulk_desc *bulk);
635 void ptlrpc_prep_bulk_page(struct ptlrpc_bulk_desc *desc,
636 struct page *page, int pageoffset, int len);
637 void ptlrpc_retain_replayable_request(struct ptlrpc_request *req,
638 struct obd_import *imp);
639 __u64 ptlrpc_next_xid(void);
641 /* ptlrpc/service.c */
642 void ptlrpc_save_lock (struct ptlrpc_request *req,
643 struct lustre_handle *lock, int mode);
644 void ptlrpc_save_llog_lock (struct ptlrpc_request *req,
645 struct llog_create_locks *lcl);
646 void ptlrpc_commit_replies (struct obd_device *obd);
647 void ptlrpc_schedule_difficult_reply (struct ptlrpc_reply_state *rs);
648 struct ptlrpc_service *ptlrpc_init_svc(int nbufs, int bufsize, int max_req_size,
649 int req_portal, int rep_portal,
650 svc_handler_t, char *name,
651 struct proc_dir_entry *proc_entry);
652 void ptlrpc_stop_all_threads(struct ptlrpc_service *svc);
653 int ptlrpc_start_n_threads(struct obd_device *dev, struct ptlrpc_service *svc,
654 int cnt, char *base_name);
655 int ptlrpc_start_thread(struct obd_device *dev, struct ptlrpc_service *svc,
657 int ptlrpc_unregister_service(struct ptlrpc_service *service);
658 int liblustre_check_services (void *arg);
659 void ptlrpc_daemonize(void);
662 struct ptlrpc_svc_data {
664 struct ptlrpc_service *svc;
665 struct ptlrpc_thread *thread;
666 struct obd_device *dev;
669 /* ptlrpc/import.c */
670 int ptlrpc_connect_import(struct obd_import *imp, char * new_uuid);
671 int ptlrpc_init_import(struct obd_import *imp);
672 int ptlrpc_disconnect_import(struct obd_import *imp);
673 int ptlrpc_import_recovery_state_machine(struct obd_import *imp);
675 /* ptlrpc/pack_generic.c */
676 int lustre_msg_swabbed(struct lustre_msg *msg);
677 int lustre_pack_request(struct ptlrpc_request *, int count, int *lens,
679 int lustre_pack_reply(struct ptlrpc_request *, int count, int *lens,
681 void lustre_free_reply_state(struct ptlrpc_reply_state *rs);
682 int lustre_msg_size(int count, int *lengths);
683 int lustre_unpack_msg(struct lustre_msg *m, int len);
684 void *lustre_msg_buf(struct lustre_msg *m, int n, int minlen);
685 char *lustre_msg_string (struct lustre_msg *m, int n, int max_len);
686 void *lustre_swab_buf(struct lustre_msg *, int n, int minlen, void *swabber);
687 void *lustre_swab_reqbuf (struct ptlrpc_request *req, int n, int minlen,
689 void *lustre_swab_repbuf (struct ptlrpc_request *req, int n, int minlen,
692 void lustre_init_msg (struct lustre_msg *msg, int count,
693 int *lens, char **bufs);
694 void *mdc_setattr_pack(struct lustre_msg *msg,
695 struct mdc_op_data *data,
696 struct iattr *iattr, void *ea, int ealen,
697 void *ea2, int ea2len);
698 void *mdc_create_pack(struct lustre_msg *msg, int offset,
699 struct mdc_op_data *op_data, __u32 mode, __u64 rdev,
700 const void *data, int datalen);
701 void *mdc_unlink_pack(struct lustre_msg *msg, int offset,
702 struct mdc_op_data *data);
703 void *mdc_link_pack(struct lustre_msg *msg, int offset,
704 struct mdc_op_data *data);
705 void *mdc_rename_pack(struct lustre_msg *msg, int offset,
706 struct mdc_op_data *data,
707 const char *old, int oldlen, const char *new, int newlen);
709 /* ldlm/ldlm_lib.c */
710 int client_obd_setup(struct obd_device *obddev, obd_count len, void *buf);
711 int client_obd_cleanup(struct obd_device * obddev, int flags);
712 int client_connect_import(struct lustre_handle *conn, struct obd_device *obd,
713 struct obd_uuid *cluuid);
714 int client_disconnect_export(struct obd_export *exp, int failover);
716 /* ptlrpc/pinger.c */
717 int ptlrpc_pinger_add_import(struct obd_import *imp);
718 int ptlrpc_pinger_del_import(struct obd_import *imp);
720 /* ptlrpc/ptlrpcd.c */
721 void ptlrpcd_wake(struct ptlrpc_request *req);
722 void ptlrpcd_add_req(struct ptlrpc_request *req);
723 int ptlrpcd_addref(void);
724 void ptlrpcd_decref(void);
726 /* ptlrpc/lproc_ptlrpc.c */
728 void ptlrpc_lprocfs_register_obd(struct obd_device *obddev);
729 void ptlrpc_lprocfs_unregister_obd(struct obd_device *obddev);
731 #define ptlrpc_lprocfs_register_obd(param...) do{}while(0)
732 #define ptlrpc_lprocfs_unregister_obd(param...) do{}while(0)
735 /* ptlrpc/llog_server.c */
736 int llog_origin_handle_open(struct ptlrpc_request *req);
737 int llog_origin_handle_prev_block(struct ptlrpc_request *req);
738 int llog_origin_handle_next_block(struct ptlrpc_request *req);
739 int llog_origin_handle_read_header(struct ptlrpc_request *req);
740 int llog_origin_handle_close(struct ptlrpc_request *req);
741 int llog_origin_handle_cancel(struct ptlrpc_request *req);
742 int llog_catinfo(struct ptlrpc_request *req);
744 /* ptlrpc/llog_client.c */
745 extern struct llog_operations llog_client_ops;