4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
31 * This file is part of Lustre, http://www.lustre.org/
32 * Lustre is a trademark of Sun Microsystems, Inc.
34 * lnet/include/lnet/lib-lnet.h
36 * Top level include for library side routines
39 #ifndef __LNET_LIB_LNET_H__
40 #define __LNET_LIB_LNET_H__
42 #if defined(__linux__)
43 #include <lnet/linux/lib-lnet.h>
44 #elif defined(__APPLE__)
45 #include <lnet/darwin/lib-lnet.h>
46 #elif defined(__WINNT__)
47 #include <lnet/winnt/lib-lnet.h>
49 #error Unsupported Operating System
52 #include <libcfs/libcfs.h>
53 #include <lnet/types.h>
54 #include <lnet/lnet.h>
55 #include <lnet/lib-types.h>
57 extern lnet_t the_lnet; /* THE network */
59 static inline int lnet_is_wire_handle_none (lnet_handle_wire_t *wh)
61 return (wh->wh_interface_cookie == LNET_WIRE_HANDLE_COOKIE_NONE &&
62 wh->wh_object_cookie == LNET_WIRE_HANDLE_COOKIE_NONE);
65 static inline int lnet_md_exhausted (lnet_libmd_t *md)
67 return (md->md_threshold == 0 ||
68 ((md->md_options & LNET_MD_MAX_SIZE) != 0 &&
69 md->md_offset + md->md_max_size > md->md_length));
72 static inline int lnet_md_unlinkable (lnet_libmd_t *md)
74 /* Should unlink md when its refcount is 0 and either:
75 * - md has been flagged for deletion (by auto unlink or LNetM[DE]Unlink,
76 * in the latter case md may not be exhausted).
77 * - auto unlink is on and md is exhausted.
79 if (md->md_refcount != 0)
82 if ((md->md_flags & LNET_MD_FLAG_ZOMBIE) != 0)
85 return ((md->md_flags & LNET_MD_FLAG_AUTO_UNLINK) != 0 &&
86 lnet_md_exhausted(md));
89 static inline unsigned int
90 lnet_match_to_hash(lnet_process_id_t id, __u64 mbits)
92 mbits += id.nid + id.pid;
93 return cfs_hash_long((unsigned long)mbits, LNET_PORTAL_HASH_BITS);
97 #define LNET_LOCK() cfs_spin_lock(&the_lnet.ln_lock)
98 #define LNET_UNLOCK() cfs_spin_unlock(&the_lnet.ln_lock)
99 #define LNET_MUTEX_LOCK(m) cfs_mutex_lock(m)
100 #define LNET_MUTEX_UNLOCK(m) cfs_mutex_unlock(m)
102 # ifndef HAVE_LIBPTHREAD
103 #define LNET_SINGLE_THREADED_LOCK(l) \
105 LASSERT ((l) == 0); \
109 #define LNET_SINGLE_THREADED_UNLOCK(l) \
111 LASSERT ((l) == 1); \
115 #define LNET_LOCK() LNET_SINGLE_THREADED_LOCK(the_lnet.ln_lock)
116 #define LNET_UNLOCK() LNET_SINGLE_THREADED_UNLOCK(the_lnet.ln_lock)
117 #define LNET_MUTEX_LOCK(m) LNET_SINGLE_THREADED_LOCK(*(m))
118 #define LNET_MUTEX_UNLOCK(m) LNET_SINGLE_THREADED_UNLOCK(*(m))
120 #define LNET_LOCK() pthread_mutex_lock(&the_lnet.ln_lock)
121 #define LNET_UNLOCK() pthread_mutex_unlock(&the_lnet.ln_lock)
122 #define LNET_MUTEX_LOCK(m) pthread_mutex_lock(m)
123 #define LNET_MUTEX_UNLOCK(m) pthread_mutex_unlock(m)
127 #define MAX_PORTALS 64
129 /* these are only used by code with LNET_USE_LIB_FREELIST, but we still
130 * exported them to !LNET_USE_LIB_FREELIST for easy implemetation */
131 #define LNET_FL_MAX_MES 2048
132 #define LNET_FL_MAX_MDS 2048
133 #define LNET_FL_MAX_EQS 512
134 #define LNET_FL_MAX_MSGS 2048 /* Outstanding messages */
136 #ifdef LNET_USE_LIB_FREELIST
138 int lnet_freelist_init(lnet_freelist_t *fl, int n, int size);
139 void lnet_freelist_fini(lnet_freelist_t *fl);
142 lnet_freelist_alloc (lnet_freelist_t *fl)
144 /* ALWAYS called with liblock held */
147 if (cfs_list_empty (&fl->fl_list))
150 o = cfs_list_entry (fl->fl_list.next, lnet_freeobj_t, fo_list);
151 cfs_list_del (&o->fo_list);
152 return ((void *)&o->fo_contents);
156 lnet_freelist_free (lnet_freelist_t *fl, void *obj)
158 /* ALWAYS called with liblock held */
159 lnet_freeobj_t *o = cfs_list_entry (obj, lnet_freeobj_t, fo_contents);
161 cfs_list_add (&o->fo_list, &fl->fl_list);
165 static inline lnet_eq_t *
168 /* NEVER called with resource lock held */
169 struct lnet_res_container *rec = &the_lnet.ln_eq_container;
173 eq = (lnet_eq_t *)lnet_freelist_alloc(&rec->rec_freelist);
180 lnet_eq_free_locked(lnet_eq_t *eq)
182 /* ALWAYS called with resource lock held */
183 struct lnet_res_container *rec = &the_lnet.ln_eq_container;
185 lnet_freelist_free(&rec->rec_freelist, eq);
189 lnet_eq_free(lnet_eq_t *eq)
192 lnet_eq_free_locked(eq);
196 static inline lnet_libmd_t *
197 lnet_md_alloc (lnet_md_t *umd)
199 /* NEVER called with resource lock held */
200 struct lnet_res_container *rec = &the_lnet.ln_md_container;
204 md = (lnet_libmd_t *)lnet_freelist_alloc(&rec->rec_freelist);
208 CFS_INIT_LIST_HEAD(&md->md_list);
214 lnet_md_free_locked(lnet_libmd_t *md)
216 /* ALWAYS called with resource lock held */
217 struct lnet_res_container *rec = &the_lnet.ln_md_container;
219 lnet_freelist_free(&rec->rec_freelist, md);
223 lnet_md_free(lnet_libmd_t *md)
226 lnet_md_free_locked(md);
230 static inline lnet_me_t *
233 /* NEVER called with resource lock held */
234 struct lnet_res_container *rec = &the_lnet.ln_me_container;
238 me = (lnet_me_t *)lnet_freelist_alloc(&rec->rec_freelist);
245 lnet_me_free_locked(lnet_me_t *me)
247 /* ALWAYS called with resource lock held */
248 struct lnet_res_container *rec = &the_lnet.ln_me_container;
250 lnet_freelist_free(&rec->rec_freelist, me);
254 lnet_me_free(lnet_me_t *me)
257 lnet_me_free_locked(me);
261 static inline lnet_msg_t *
262 lnet_msg_alloc (void)
264 /* NEVER called with network lock held */
265 struct lnet_msg_container *msc = &the_lnet.ln_msg_container;
269 msg = (lnet_msg_t *)lnet_freelist_alloc(&msc->msc_freelist);
273 /* NULL pointers, clear flags etc */
274 memset(msg, 0, sizeof(*msg));
276 msg->msg_ev.uid = LNET_UID_ANY;
283 lnet_msg_free_locked(lnet_msg_t *msg)
285 /* ALWAYS called with network lock held */
286 struct lnet_msg_container *msc = &the_lnet.ln_msg_container;
288 LASSERT(!msg->msg_onactivelist);
289 lnet_freelist_free(&msc->msc_freelist, msg);
293 lnet_msg_free (lnet_msg_t *msg)
296 lnet_msg_free_locked(msg);
300 #else /* !LNET_USE_LIB_FREELIST */
302 static inline lnet_eq_t *
305 /* NEVER called with liblock held */
308 LIBCFS_ALLOC(eq, sizeof(*eq));
313 lnet_eq_free(lnet_eq_t *eq)
315 /* ALWAYS called with resource lock held */
316 LIBCFS_FREE(eq, sizeof(*eq));
319 static inline lnet_libmd_t *
320 lnet_md_alloc (lnet_md_t *umd)
322 /* NEVER called with liblock held */
327 if ((umd->options & LNET_MD_KIOV) != 0) {
329 size = offsetof(lnet_libmd_t, md_iov.kiov[niov]);
331 niov = ((umd->options & LNET_MD_IOVEC) != 0) ?
333 size = offsetof(lnet_libmd_t, md_iov.iov[niov]);
336 LIBCFS_ALLOC(md, size);
339 /* Set here in case of early free */
340 md->md_options = umd->options;
342 CFS_INIT_LIST_HEAD(&md->md_list);
349 lnet_md_free(lnet_libmd_t *md)
351 /* ALWAYS called with resource lock held */
354 if ((md->md_options & LNET_MD_KIOV) != 0)
355 size = offsetof(lnet_libmd_t, md_iov.kiov[md->md_niov]);
357 size = offsetof(lnet_libmd_t, md_iov.iov[md->md_niov]);
359 LIBCFS_FREE(md, size);
362 static inline lnet_me_t *
365 /* NEVER called with liblock held */
368 LIBCFS_ALLOC(me, sizeof(*me));
373 lnet_me_free(lnet_me_t *me)
375 /* ALWAYS called with resource lock held */
376 LIBCFS_FREE(me, sizeof(*me));
379 static inline lnet_msg_t *
382 /* NEVER called with liblock held */
385 LIBCFS_ALLOC(msg, sizeof(*msg));
387 /* no need to zero, LIBCFS_ALLOC does for us */
391 msg->msg_ev.uid = LNET_UID_ANY;
398 lnet_msg_free(lnet_msg_t *msg)
400 /* ALWAYS called with network lock held */
401 LASSERT(!msg->msg_onactivelist);
402 LIBCFS_FREE(msg, sizeof(*msg));
405 #define lnet_eq_free_locked(eq) lnet_eq_free(eq)
406 #define lnet_md_free_locked(md) lnet_md_free(md)
407 #define lnet_me_free_locked(me) lnet_me_free(me)
408 #define lnet_msg_free_locked(msg) lnet_msg_free(msg)
410 #endif /* LNET_USE_LIB_FREELIST */
412 lnet_libhandle_t *lnet_res_lh_lookup(struct lnet_res_container *rec,
414 void lnet_res_lh_initialize(struct lnet_res_container *rec,
415 lnet_libhandle_t *lh);
417 lnet_res_lh_invalidate(lnet_libhandle_t *lh)
419 /* ALWAYS called with resource lock held */
420 cfs_list_del(&lh->lh_hash_chain);
424 lnet_eq2handle (lnet_handle_eq_t *handle, lnet_eq_t *eq)
427 LNetInvalidateHandle(handle);
431 handle->cookie = eq->eq_lh.lh_cookie;
434 static inline lnet_eq_t *
435 lnet_handle2eq(lnet_handle_eq_t *handle)
437 /* ALWAYS called with resource lock held */
438 lnet_libhandle_t *lh;
440 lh = lnet_res_lh_lookup(&the_lnet.ln_eq_container, handle->cookie);
444 return lh_entry(lh, lnet_eq_t, eq_lh);
448 lnet_md2handle (lnet_handle_md_t *handle, lnet_libmd_t *md)
450 handle->cookie = md->md_lh.lh_cookie;
453 static inline lnet_libmd_t *
454 lnet_handle2md(lnet_handle_md_t *handle)
456 /* ALWAYS called with resource lock held */
457 lnet_libhandle_t *lh;
459 lh = lnet_res_lh_lookup(&the_lnet.ln_md_container, handle->cookie);
463 return lh_entry(lh, lnet_libmd_t, md_lh);
466 static inline lnet_libmd_t *
467 lnet_wire_handle2md(lnet_handle_wire_t *wh)
469 /* ALWAYS called with resource lock held */
470 lnet_libhandle_t *lh;
472 if (wh->wh_interface_cookie != the_lnet.ln_interface_cookie)
475 lh = lnet_res_lh_lookup(&the_lnet.ln_md_container,
476 wh->wh_object_cookie);
480 return lh_entry(lh, lnet_libmd_t, md_lh);
484 lnet_me2handle (lnet_handle_me_t *handle, lnet_me_t *me)
486 handle->cookie = me->me_lh.lh_cookie;
489 static inline lnet_me_t *
490 lnet_handle2me(lnet_handle_me_t *handle)
492 /* ALWAYS called with resource lock held */
493 lnet_libhandle_t *lh;
495 lh = lnet_res_lh_lookup(&the_lnet.ln_me_container, handle->cookie);
499 return lh_entry(lh, lnet_me_t, me_lh);
503 lnet_peer_addref_locked(lnet_peer_t *lp)
505 LASSERT (lp->lp_refcount > 0);
509 extern void lnet_destroy_peer_locked(lnet_peer_t *lp);
512 lnet_peer_decref_locked(lnet_peer_t *lp)
514 LASSERT (lp->lp_refcount > 0);
516 if (lp->lp_refcount == 0)
517 lnet_destroy_peer_locked(lp);
521 lnet_isrouter(lnet_peer_t *lp)
523 return lp->lp_rtr_refcount != 0;
527 lnet_ni_addref_locked(lnet_ni_t *ni)
529 LASSERT (ni->ni_refcount > 0);
534 lnet_ni_addref(lnet_ni_t *ni)
537 lnet_ni_addref_locked(ni);
542 lnet_ni_decref_locked(lnet_ni_t *ni)
544 LASSERT (ni->ni_refcount > 0);
546 if (ni->ni_refcount == 0)
547 cfs_list_add_tail(&ni->ni_list, &the_lnet.ln_zombie_nis);
551 lnet_ni_decref(lnet_ni_t *ni)
554 lnet_ni_decref_locked(ni);
559 lnet_nid2peerhash(lnet_nid_t nid)
561 return cfs_hash_long(nid, LNET_PEER_HASH_BITS);
564 extern lnd_t the_lolnd;
567 /* unconditional registration */
568 #define LNET_REGISTER_ULND(lnd) \
572 lnet_register_lnd(&(lnd)); \
575 /* conditional registration */
576 #define LNET_REGISTER_ULND_IF_PRESENT(lnd) \
578 extern lnd_t lnd __attribute__ ((weak, alias("the_lolnd"))); \
580 if (&(lnd) != &the_lolnd) \
581 lnet_register_lnd(&(lnd)); \
587 lnet_set_msg_uid(lnet_ni_t *ni, lnet_msg_t *msg, lnet_uid_t uid)
589 LASSERT (msg->msg_ev.uid == LNET_UID_ANY);
590 msg->msg_ev.uid = uid;
594 extern lnet_ni_t *lnet_nid2ni_locked (lnet_nid_t nid);
595 extern lnet_ni_t *lnet_net2ni_locked (__u32 net);
596 static inline lnet_ni_t *
597 lnet_net2ni (__u32 net)
602 ni = lnet_net2ni_locked(net);
608 int lnet_notify(lnet_ni_t *ni, lnet_nid_t peer, int alive, cfs_time_t when);
609 void lnet_notify_locked(lnet_peer_t *lp, int notifylnd, int alive, cfs_time_t when);
610 int lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway_nid);
611 int lnet_check_routes(void);
612 int lnet_del_route(__u32 net, lnet_nid_t gw_nid);
613 void lnet_destroy_routes(void);
614 int lnet_get_route(int idx, __u32 *net, __u32 *hops,
615 lnet_nid_t *gateway, __u32 *alive);
616 void lnet_proc_init(void);
617 void lnet_proc_fini(void);
618 void lnet_init_rtrpools(void);
619 int lnet_alloc_rtrpools(int im_a_router);
620 void lnet_free_rtrpools(void);
621 lnet_remotenet_t *lnet_find_net_locked (__u32 net);
623 int lnet_islocalnid(lnet_nid_t nid);
624 int lnet_islocalnet(__u32 net);
626 void lnet_commit_md(lnet_libmd_t *md, lnet_msg_t *msg);
627 void lnet_build_unlink_event(lnet_libmd_t *md, lnet_event_t *ev);
628 void lnet_eq_enqueue_event(lnet_eq_t *eq, lnet_event_t *ev);
629 void lnet_prep_send(lnet_msg_t *msg, int type, lnet_process_id_t target,
630 unsigned int offset, unsigned int len);
631 int lnet_send(lnet_nid_t nid, lnet_msg_t *msg);
632 void lnet_return_credits_locked (lnet_msg_t *msg);
634 /* portals functions */
636 lnet_ptl_is_lazy(lnet_portal_t *ptl)
638 return !!(ptl->ptl_options & LNET_PTL_LAZY);
642 lnet_ptl_is_unique(lnet_portal_t *ptl)
644 return !!(ptl->ptl_options & LNET_PTL_MATCH_UNIQUE);
648 lnet_ptl_is_wildcard(lnet_portal_t *ptl)
650 return !!(ptl->ptl_options & LNET_PTL_MATCH_WILDCARD);
654 lnet_ptl_setopt(lnet_portal_t *ptl, int opt)
656 ptl->ptl_options |= opt;
660 lnet_ptl_unsetopt(lnet_portal_t *ptl, int opt)
662 ptl->ptl_options &= ~opt;
665 static inline cfs_list_t *
666 lnet_ptl_me_head(int index, lnet_process_id_t id, __u64 mbits)
668 lnet_portal_t *ptl = the_lnet.ln_portals[index];
670 if (lnet_ptl_is_wildcard(ptl)) {
671 return &ptl->ptl_mlist;
672 } else if (lnet_ptl_is_unique(ptl)) {
673 LASSERT(ptl->ptl_mhash != NULL);
674 return &ptl->ptl_mhash[lnet_match_to_hash(id, mbits)];
679 int lnet_portals_create(void);
680 void lnet_portals_destroy(void);
682 int lnet_ptl_type_match(struct lnet_portal *ptl, lnet_process_id_t id,
683 __u64 mbits, __u64 ignore_bits);
684 void lnet_match_blocked_msg(lnet_libmd_t *md);
685 int lnet_match_md(int index, int op_mask, lnet_process_id_t src,
686 unsigned int rlength, unsigned int roffset,
687 __u64 match_bits, lnet_msg_t *msg,
688 unsigned int *mlength_out, unsigned int *offset_out,
689 lnet_libmd_t **md_out);
691 /* message functions */
692 int lnet_parse (lnet_ni_t *ni, lnet_hdr_t *hdr,
693 lnet_nid_t fromnid, void *private, int rdma_req);
694 void lnet_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed,
695 unsigned int offset, unsigned int mlen, unsigned int rlen);
696 lnet_msg_t *lnet_create_reply_msg (lnet_ni_t *ni, lnet_msg_t *get_msg);
697 void lnet_set_reply_msg_len(lnet_ni_t *ni, lnet_msg_t *msg, unsigned int len);
698 void lnet_finalize(lnet_ni_t *ni, lnet_msg_t *msg, int rc);
699 void lnet_drop_delayed_msg_list(cfs_list_t *head, char *reason);
700 void lnet_recv_delayed_msg_list(cfs_list_t *head);
702 int lnet_msg_container_setup(struct lnet_msg_container *container);
703 void lnet_msg_container_cleanup(struct lnet_msg_container *container);
705 char *lnet_msgtyp2str (int type);
706 void lnet_print_hdr (lnet_hdr_t * hdr);
707 int lnet_fail_nid(lnet_nid_t nid, unsigned int threshold);
709 unsigned int lnet_iov_nob (unsigned int niov, struct iovec *iov);
710 int lnet_extract_iov (int dst_niov, struct iovec *dst,
711 int src_niov, struct iovec *src,
712 unsigned int offset, unsigned int len);
714 unsigned int lnet_kiov_nob (unsigned int niov, lnet_kiov_t *iov);
715 int lnet_extract_kiov (int dst_niov, lnet_kiov_t *dst,
716 int src_niov, lnet_kiov_t *src,
717 unsigned int offset, unsigned int len);
719 void lnet_copy_iov2iov (unsigned int ndiov, struct iovec *diov,
720 unsigned int doffset,
721 unsigned int nsiov, struct iovec *siov,
722 unsigned int soffset, unsigned int nob);
723 void lnet_copy_kiov2iov (unsigned int niov, struct iovec *iov,
724 unsigned int iovoffset,
725 unsigned int nkiov, lnet_kiov_t *kiov,
726 unsigned int kiovoffset, unsigned int nob);
727 void lnet_copy_iov2kiov (unsigned int nkiov, lnet_kiov_t *kiov,
728 unsigned int kiovoffset,
729 unsigned int niov, struct iovec *iov,
730 unsigned int iovoffset, unsigned int nob);
731 void lnet_copy_kiov2kiov (unsigned int ndkiov, lnet_kiov_t *dkiov,
732 unsigned int doffset,
733 unsigned int nskiov, lnet_kiov_t *skiov,
734 unsigned int soffset, unsigned int nob);
737 lnet_copy_iov2flat(int dlen, void *dest, unsigned int doffset,
738 unsigned int nsiov, struct iovec *siov, unsigned int soffset,
741 struct iovec diov = {/*.iov_base = */ dest, /*.iov_len = */ dlen};
743 lnet_copy_iov2iov(1, &diov, doffset,
744 nsiov, siov, soffset, nob);
748 lnet_copy_kiov2flat(int dlen, void *dest, unsigned int doffset,
749 unsigned int nsiov, lnet_kiov_t *skiov, unsigned int soffset,
752 struct iovec diov = {/* .iov_base = */ dest, /* .iov_len = */ dlen};
754 lnet_copy_kiov2iov(1, &diov, doffset,
755 nsiov, skiov, soffset, nob);
759 lnet_copy_flat2iov(unsigned int ndiov, struct iovec *diov, unsigned int doffset,
760 int slen, void *src, unsigned int soffset, unsigned int nob)
762 struct iovec siov = {/*.iov_base = */ src, /*.iov_len = */slen};
763 lnet_copy_iov2iov(ndiov, diov, doffset,
764 1, &siov, soffset, nob);
768 lnet_copy_flat2kiov(unsigned int ndiov, lnet_kiov_t *dkiov, unsigned int doffset,
769 int slen, void *src, unsigned int soffset, unsigned int nob)
771 struct iovec siov = {/* .iov_base = */ src, /* .iov_len = */ slen};
772 lnet_copy_iov2kiov(ndiov, dkiov, doffset,
773 1, &siov, soffset, nob);
776 void lnet_me_unlink(lnet_me_t *me);
778 void lnet_md_unlink(lnet_libmd_t *md);
779 void lnet_md_deconstruct(lnet_libmd_t *lmd, lnet_md_t *umd);
781 void lnet_register_lnd(lnd_t *lnd);
782 void lnet_unregister_lnd(lnd_t *lnd);
783 int lnet_set_ip_niaddr (lnet_ni_t *ni);
786 int lnet_connect(cfs_socket_t **sockp, lnet_nid_t peer_nid,
787 __u32 local_ip, __u32 peer_ip, int peer_port);
788 void lnet_connect_console_error(int rc, lnet_nid_t peer_nid,
789 __u32 peer_ip, int port);
790 int lnet_count_acceptor_nis(void);
791 int lnet_acceptor_timeout(void);
792 int lnet_acceptor_port(void);
794 void lnet_router_checker(void);
797 #ifdef HAVE_LIBPTHREAD
798 int lnet_count_acceptor_nis(void);
799 int lnet_acceptor_port(void);
802 int lnet_acceptor_start(void);
803 void lnet_acceptor_stop(void);
805 void lnet_get_tunables(void);
806 int lnet_peers_start_down(void);
807 int lnet_peer_buffer_credits(lnet_ni_t *ni);
809 int lnet_router_checker_start(void);
810 void lnet_router_checker_stop(void);
811 void lnet_swap_pinginfo(lnet_ping_info_t *info);
812 int lnet_router_down_ni(lnet_peer_t *rtr, __u32 net);
814 int lnet_ping_target_init(void);
815 void lnet_ping_target_fini(void);
816 int lnet_ping(lnet_process_id_t id, int timeout_ms,
817 lnet_process_id_t *ids, int n_ids);
819 int lnet_parse_ip2nets (char **networksp, char *ip2nets);
820 int lnet_parse_routes (char *route_str, int *im_a_router);
821 int lnet_parse_networks (cfs_list_t *nilist, char *networks);
823 int lnet_nid2peer_locked(lnet_peer_t **lpp, lnet_nid_t nid);
824 lnet_peer_t *lnet_find_peer_locked (lnet_nid_t nid);
825 void lnet_peer_table_cleanup(void);
826 void lnet_peer_table_destroy(void);
827 int lnet_peer_table_create(void);
828 void lnet_debug_peer(lnet_nid_t nid);
832 lnet_parse_int_tunable(int *value, char *name)
834 char *env = getenv(name);
840 *value = strtoull(env, &end, 0);
844 CERROR("Can't parse tunable %s=%s\n", name, env);