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.
30 * Copyright (c) 2012, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lnet/include/lnet/lib-lnet.h
38 * Top level include for library side routines
41 #ifndef __LNET_LIB_LNET_H__
42 #define __LNET_LIB_LNET_H__
44 #include <linux/lnet/linux/lib-lnet.h>
46 #include <linux/libcfs/libcfs.h>
47 #include <linux/lnet/types.h>
48 #include <linux/lnet/lnet.h>
49 #include <linux/lnet/lib-types.h>
51 extern lnet_t the_lnet; /* THE network */
53 #if defined(LNET_USE_LIB_FREELIST)
54 /* 1 CPT, simplify implementation... */
55 # define LNET_CPT_MAX_BITS 0
57 #else /* KERNEL and no freelist */
59 # if (BITS_PER_LONG == 32)
60 /* 2 CPTs, allowing more CPTs might make us under memory pressure */
61 # define LNET_CPT_MAX_BITS 1
63 # else /* 64-bit system */
65 * 256 CPTs for thousands of CPUs, allowing more CPTs might make us
66 * under risk of consuming all lh_cookie.
68 # define LNET_CPT_MAX_BITS 8
69 # endif /* BITS_PER_LONG == 32 */
72 /* max allowed CPT number */
73 #define LNET_CPT_MAX (1 << LNET_CPT_MAX_BITS)
75 #define LNET_CPT_NUMBER (the_lnet.ln_cpt_number)
76 #define LNET_CPT_BITS (the_lnet.ln_cpt_bits)
77 #define LNET_CPT_MASK ((1ULL << LNET_CPT_BITS) - 1)
80 #define LNET_LOCK_EX CFS_PERCPT_LOCK_EX
82 static inline int lnet_is_wire_handle_none(lnet_handle_wire_t *wh)
84 return (wh->wh_interface_cookie == LNET_WIRE_HANDLE_COOKIE_NONE &&
85 wh->wh_object_cookie == LNET_WIRE_HANDLE_COOKIE_NONE);
88 static inline int lnet_md_exhausted(lnet_libmd_t *md)
90 return (md->md_threshold == 0 ||
91 ((md->md_options & LNET_MD_MAX_SIZE) != 0 &&
92 md->md_offset + md->md_max_size > md->md_length));
95 static inline int lnet_md_unlinkable(lnet_libmd_t *md)
97 /* Should unlink md when its refcount is 0 and either:
98 * - md has been flagged for deletion (by auto unlink or LNetM[DE]Unlink,
99 * in the latter case md may not be exhausted).
100 * - auto unlink is on and md is exhausted.
102 if (md->md_refcount != 0)
105 if ((md->md_flags & LNET_MD_FLAG_ZOMBIE) != 0)
108 return ((md->md_flags & LNET_MD_FLAG_AUTO_UNLINK) != 0 &&
109 lnet_md_exhausted(md));
112 #define lnet_cpt_table() (the_lnet.ln_cpt_table)
113 #define lnet_cpt_current() cfs_cpt_current(the_lnet.ln_cpt_table, 1)
116 lnet_cpt_of_cookie(__u64 cookie)
118 unsigned int cpt = (cookie >> LNET_COOKIE_TYPE_BITS) & LNET_CPT_MASK;
120 /* LNET_CPT_NUMBER doesn't have to be power2, which means we can
121 * get illegal cpt from it's invalid cookie */
122 return cpt < LNET_CPT_NUMBER ? cpt : cpt % LNET_CPT_NUMBER;
126 lnet_res_lock(int cpt)
128 cfs_percpt_lock(the_lnet.ln_res_lock, cpt);
132 lnet_res_unlock(int cpt)
134 cfs_percpt_unlock(the_lnet.ln_res_lock, cpt);
138 lnet_res_lock_current(void)
140 int cpt = lnet_cpt_current();
147 lnet_net_lock(int cpt)
149 cfs_percpt_lock(the_lnet.ln_net_lock, cpt);
153 lnet_net_unlock(int cpt)
155 cfs_percpt_unlock(the_lnet.ln_net_lock, cpt);
159 lnet_net_lock_current(void)
161 int cpt = lnet_cpt_current();
167 #define LNET_LOCK() lnet_net_lock(LNET_LOCK_EX)
168 #define LNET_UNLOCK() lnet_net_unlock(LNET_LOCK_EX)
171 #define lnet_ptl_lock(ptl) spin_lock(&(ptl)->ptl_lock)
172 #define lnet_ptl_unlock(ptl) spin_unlock(&(ptl)->ptl_lock)
173 #define lnet_eq_wait_lock() spin_lock(&the_lnet.ln_eq_wait_lock)
174 #define lnet_eq_wait_unlock() spin_unlock(&the_lnet.ln_eq_wait_lock)
175 #define lnet_ni_lock(ni) spin_lock(&(ni)->ni_lock)
176 #define lnet_ni_unlock(ni) spin_unlock(&(ni)->ni_lock)
177 #define LNET_MUTEX_LOCK(m) mutex_lock(m)
178 #define LNET_MUTEX_UNLOCK(m) mutex_unlock(m)
181 #define MAX_PORTALS 64
183 /* these are only used by code with LNET_USE_LIB_FREELIST, but we still
184 * exported them to !LNET_USE_LIB_FREELIST for easy implementation */
185 #define LNET_FL_MAX_MES 2048
186 #define LNET_FL_MAX_MDS 2048
187 #define LNET_FL_MAX_EQS 512
188 #define LNET_FL_MAX_MSGS 2048 /* Outstanding messages */
190 #ifdef LNET_USE_LIB_FREELIST
192 int lnet_freelist_init(lnet_freelist_t *fl, int n, int size);
193 void lnet_freelist_fini(lnet_freelist_t *fl);
196 lnet_freelist_alloc(lnet_freelist_t *fl)
198 /* ALWAYS called with liblock held */
201 if (list_empty(&fl->fl_list))
204 o = list_entry(fl->fl_list.next, lnet_freeobj_t, fo_list);
205 list_del(&o->fo_list);
206 return (void *)&o->fo_contents;
210 lnet_freelist_free(lnet_freelist_t *fl, void *obj)
212 /* ALWAYS called with liblock held */
213 lnet_freeobj_t *o = list_entry(obj, lnet_freeobj_t, fo_contents);
215 list_add(&o->fo_list, &fl->fl_list);
219 static inline lnet_eq_t *
222 /* NEVER called with resource lock held */
223 struct lnet_res_container *rec = &the_lnet.ln_eq_container;
226 LASSERT(LNET_CPT_NUMBER == 1);
229 eq = (lnet_eq_t *)lnet_freelist_alloc(&rec->rec_freelist);
236 lnet_eq_free_locked(lnet_eq_t *eq)
238 /* ALWAYS called with resource lock held */
239 struct lnet_res_container *rec = &the_lnet.ln_eq_container;
241 LASSERT(LNET_CPT_NUMBER == 1);
242 lnet_freelist_free(&rec->rec_freelist, eq);
246 lnet_eq_free(lnet_eq_t *eq)
249 lnet_eq_free_locked(eq);
253 static inline lnet_libmd_t *
254 lnet_md_alloc(lnet_md_t *umd)
256 /* NEVER called with resource lock held */
257 struct lnet_res_container *rec = the_lnet.ln_md_containers[0];
260 LASSERT(LNET_CPT_NUMBER == 1);
263 md = (lnet_libmd_t *)lnet_freelist_alloc(&rec->rec_freelist);
267 INIT_LIST_HEAD(&md->md_list);
273 lnet_md_free_locked(lnet_libmd_t *md)
275 /* ALWAYS called with resource lock held */
276 struct lnet_res_container *rec = the_lnet.ln_md_containers[0];
278 LASSERT(LNET_CPT_NUMBER == 1);
279 lnet_freelist_free(&rec->rec_freelist, md);
283 lnet_md_free(lnet_libmd_t *md)
286 lnet_md_free_locked(md);
290 static inline lnet_me_t *
293 /* NEVER called with resource lock held */
294 struct lnet_res_container *rec = the_lnet.ln_me_containers[0];
297 LASSERT(LNET_CPT_NUMBER == 1);
300 me = (lnet_me_t *)lnet_freelist_alloc(&rec->rec_freelist);
307 lnet_me_free_locked(lnet_me_t *me)
309 /* ALWAYS called with resource lock held */
310 struct lnet_res_container *rec = the_lnet.ln_me_containers[0];
312 LASSERT(LNET_CPT_NUMBER == 1);
313 lnet_freelist_free(&rec->rec_freelist, me);
317 lnet_me_free(lnet_me_t *me)
320 lnet_me_free_locked(me);
324 static inline lnet_msg_t *
327 /* NEVER called with network lock held */
328 struct lnet_msg_container *msc = the_lnet.ln_msg_containers[0];
331 LASSERT(LNET_CPT_NUMBER == 1);
334 msg = (lnet_msg_t *)lnet_freelist_alloc(&msc->msc_freelist);
338 /* NULL pointers, clear flags etc */
339 memset(msg, 0, sizeof(*msg));
345 lnet_msg_free_locked(lnet_msg_t *msg)
347 /* ALWAYS called with network lock held */
348 struct lnet_msg_container *msc = the_lnet.ln_msg_containers[0];
350 LASSERT(LNET_CPT_NUMBER == 1);
351 LASSERT(!msg->msg_onactivelist);
352 lnet_freelist_free(&msc->msc_freelist, msg);
356 lnet_msg_free(lnet_msg_t *msg)
359 lnet_msg_free_locked(msg);
363 #else /* !LNET_USE_LIB_FREELIST */
365 static inline lnet_eq_t *
368 /* NEVER called with liblock held */
371 LIBCFS_ALLOC(eq, sizeof(*eq));
376 lnet_eq_free(lnet_eq_t *eq)
378 /* ALWAYS called with resource lock held */
379 LIBCFS_FREE(eq, sizeof(*eq));
382 static inline lnet_libmd_t *
383 lnet_md_alloc(lnet_md_t *umd)
385 /* NEVER called with liblock held */
390 if ((umd->options & LNET_MD_KIOV) != 0) {
392 size = offsetof(lnet_libmd_t, md_iov.kiov[niov]);
394 niov = ((umd->options & LNET_MD_IOVEC) != 0) ?
396 size = offsetof(lnet_libmd_t, md_iov.iov[niov]);
399 LIBCFS_ALLOC(md, size);
402 /* Set here in case of early free */
403 md->md_options = umd->options;
405 INIT_LIST_HEAD(&md->md_list);
412 lnet_md_free(lnet_libmd_t *md)
414 /* ALWAYS called with resource lock held */
417 if ((md->md_options & LNET_MD_KIOV) != 0)
418 size = offsetof(lnet_libmd_t, md_iov.kiov[md->md_niov]);
420 size = offsetof(lnet_libmd_t, md_iov.iov[md->md_niov]);
422 LIBCFS_FREE(md, size);
425 static inline lnet_me_t *
428 /* NEVER called with liblock held */
431 LIBCFS_ALLOC(me, sizeof(*me));
436 lnet_me_free(lnet_me_t *me)
438 /* ALWAYS called with resource lock held */
439 LIBCFS_FREE(me, sizeof(*me));
442 static inline lnet_msg_t *
445 /* NEVER called with liblock held */
448 LIBCFS_ALLOC(msg, sizeof(*msg));
450 /* no need to zero, LIBCFS_ALLOC does for us */
455 lnet_msg_free(lnet_msg_t *msg)
457 /* ALWAYS called with network lock held */
458 LASSERT(!msg->msg_onactivelist);
459 LIBCFS_FREE(msg, sizeof(*msg));
462 #define lnet_eq_free_locked(eq) lnet_eq_free(eq)
463 #define lnet_md_free_locked(md) lnet_md_free(md)
464 #define lnet_me_free_locked(me) lnet_me_free(me)
465 #define lnet_msg_free_locked(msg) lnet_msg_free(msg)
467 #endif /* LNET_USE_LIB_FREELIST */
469 lnet_libhandle_t *lnet_res_lh_lookup(struct lnet_res_container *rec,
471 void lnet_res_lh_initialize(struct lnet_res_container *rec,
472 lnet_libhandle_t *lh);
474 lnet_res_lh_invalidate(lnet_libhandle_t *lh)
476 /* ALWAYS called with resource lock held */
477 /* NB: cookie is still useful, don't reset it */
478 list_del(&lh->lh_hash_chain);
482 lnet_eq2handle(lnet_handle_eq_t *handle, lnet_eq_t *eq)
485 LNetInvalidateHandle(handle);
489 handle->cookie = eq->eq_lh.lh_cookie;
492 static inline lnet_eq_t *
493 lnet_handle2eq(lnet_handle_eq_t *handle)
495 /* ALWAYS called with resource lock held */
496 lnet_libhandle_t *lh;
498 lh = lnet_res_lh_lookup(&the_lnet.ln_eq_container, handle->cookie);
502 return lh_entry(lh, lnet_eq_t, eq_lh);
506 lnet_md2handle(lnet_handle_md_t *handle, lnet_libmd_t *md)
508 handle->cookie = md->md_lh.lh_cookie;
511 static inline lnet_libmd_t *
512 lnet_handle2md(lnet_handle_md_t *handle)
514 /* ALWAYS called with resource lock held */
515 lnet_libhandle_t *lh;
518 cpt = lnet_cpt_of_cookie(handle->cookie);
519 lh = lnet_res_lh_lookup(the_lnet.ln_md_containers[cpt],
524 return lh_entry(lh, lnet_libmd_t, md_lh);
527 static inline lnet_libmd_t *
528 lnet_wire_handle2md(lnet_handle_wire_t *wh)
530 /* ALWAYS called with resource lock held */
531 lnet_libhandle_t *lh;
534 if (wh->wh_interface_cookie != the_lnet.ln_interface_cookie)
537 cpt = lnet_cpt_of_cookie(wh->wh_object_cookie);
538 lh = lnet_res_lh_lookup(the_lnet.ln_md_containers[cpt],
539 wh->wh_object_cookie);
543 return lh_entry(lh, lnet_libmd_t, md_lh);
547 lnet_me2handle(lnet_handle_me_t *handle, lnet_me_t *me)
549 handle->cookie = me->me_lh.lh_cookie;
552 static inline lnet_me_t *
553 lnet_handle2me(lnet_handle_me_t *handle)
555 /* ALWAYS called with resource lock held */
556 lnet_libhandle_t *lh;
559 cpt = lnet_cpt_of_cookie(handle->cookie);
560 lh = lnet_res_lh_lookup(the_lnet.ln_me_containers[cpt],
565 return lh_entry(lh, lnet_me_t, me_lh);
569 lnet_peer_addref_locked(lnet_peer_t *lp)
571 LASSERT(lp->lp_refcount > 0);
575 void lnet_destroy_peer_locked(lnet_peer_t *lp);
578 lnet_peer_decref_locked(lnet_peer_t *lp)
580 LASSERT(lp->lp_refcount > 0);
582 if (lp->lp_refcount == 0)
583 lnet_destroy_peer_locked(lp);
587 lnet_isrouter(lnet_peer_t *lp)
589 return lp->lp_rtr_refcount != 0;
593 lnet_ni_addref_locked(lnet_ni_t *ni, int cpt)
595 LASSERT(cpt >= 0 && cpt < LNET_CPT_NUMBER);
596 LASSERT(*ni->ni_refs[cpt] >= 0);
598 (*ni->ni_refs[cpt])++;
602 lnet_ni_addref(lnet_ni_t *ni)
605 lnet_ni_addref_locked(ni, 0);
610 lnet_ni_decref_locked(lnet_ni_t *ni, int cpt)
612 LASSERT(cpt >= 0 && cpt < LNET_CPT_NUMBER);
613 LASSERT(*ni->ni_refs[cpt] > 0);
615 (*ni->ni_refs[cpt])--;
619 lnet_ni_decref(lnet_ni_t *ni)
622 lnet_ni_decref_locked(ni, 0);
626 void lnet_ni_free(lnet_ni_t *ni);
629 lnet_nid2peerhash(lnet_nid_t nid)
631 return hash_long(nid, LNET_PEER_HASH_BITS);
634 static inline struct list_head *
635 lnet_net2rnethash(__u32 net)
637 return &the_lnet.ln_remote_nets_hash[(LNET_NETNUM(net) +
639 ((1U << the_lnet.ln_remote_nets_hbits) - 1)];
642 extern lnd_t the_lolnd;
645 int lnet_cpt_of_nid_locked(lnet_nid_t nid);
646 int lnet_cpt_of_nid(lnet_nid_t nid);
647 lnet_ni_t *lnet_nid2ni_locked(lnet_nid_t nid, int cpt);
648 lnet_ni_t *lnet_net2ni_locked(__u32 net, int cpt);
649 lnet_ni_t *lnet_net2ni(__u32 net);
651 int lnet_notify(lnet_ni_t *ni, lnet_nid_t peer, int alive, cfs_time_t when);
652 void lnet_notify_locked(lnet_peer_t *lp, int notifylnd, int alive, cfs_time_t when);
653 int lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway_nid,
654 unsigned int priority);
655 int lnet_check_routes(void);
656 int lnet_del_route(__u32 net, lnet_nid_t gw_nid);
657 void lnet_destroy_routes(void);
658 int lnet_get_route(int idx, __u32 *net, __u32 *hops,
659 lnet_nid_t *gateway, __u32 *alive, __u32 *priority);
660 void lnet_proc_init(void);
661 void lnet_proc_fini(void);
662 int lnet_rtrpools_alloc(int im_a_router);
663 void lnet_rtrpools_free(void);
664 lnet_remotenet_t *lnet_find_net_locked(__u32 net);
666 int lnet_islocalnid(lnet_nid_t nid);
667 int lnet_islocalnet(__u32 net);
669 void lnet_msg_attach_md(lnet_msg_t *msg, lnet_libmd_t *md,
670 unsigned int offset, unsigned int mlen);
671 void lnet_msg_detach_md(lnet_msg_t *msg, int status);
672 void lnet_build_unlink_event(lnet_libmd_t *md, lnet_event_t *ev);
673 void lnet_build_msg_event(lnet_msg_t *msg, lnet_event_kind_t ev_type);
674 void lnet_msg_commit(lnet_msg_t *msg, int cpt);
675 void lnet_msg_decommit(lnet_msg_t *msg, int cpt, int status);
677 void lnet_eq_enqueue_event(lnet_eq_t *eq, lnet_event_t *ev);
678 void lnet_prep_send(lnet_msg_t *msg, int type, lnet_process_id_t target,
679 unsigned int offset, unsigned int len);
680 int lnet_send(lnet_nid_t nid, lnet_msg_t *msg, lnet_nid_t rtr_nid);
681 void lnet_return_tx_credits_locked(lnet_msg_t *msg);
682 void lnet_return_rx_credits_locked(lnet_msg_t *msg);
684 /* portals functions */
685 /* portals attributes */
687 lnet_ptl_is_lazy(lnet_portal_t *ptl)
689 return !!(ptl->ptl_options & LNET_PTL_LAZY);
693 lnet_ptl_is_unique(lnet_portal_t *ptl)
695 return !!(ptl->ptl_options & LNET_PTL_MATCH_UNIQUE);
699 lnet_ptl_is_wildcard(lnet_portal_t *ptl)
701 return !!(ptl->ptl_options & LNET_PTL_MATCH_WILDCARD);
705 lnet_ptl_setopt(lnet_portal_t *ptl, int opt)
707 ptl->ptl_options |= opt;
711 lnet_ptl_unsetopt(lnet_portal_t *ptl, int opt)
713 ptl->ptl_options &= ~opt;
716 /* match-table functions */
717 struct list_head *lnet_mt_match_head(struct lnet_match_table *mtable,
718 lnet_process_id_t id, __u64 mbits);
719 struct lnet_match_table *lnet_mt_of_attach(unsigned int index,
720 lnet_process_id_t id, __u64 mbits,
723 int lnet_mt_match_md(struct lnet_match_table *mtable,
724 struct lnet_match_info *info, struct lnet_msg *msg);
726 /* portals match/attach functions */
727 void lnet_ptl_attach_md(lnet_me_t *me, lnet_libmd_t *md,
728 struct list_head *matches, struct list_head *drops);
729 void lnet_ptl_detach_md(lnet_me_t *me, lnet_libmd_t *md);
730 int lnet_ptl_match_md(struct lnet_match_info *info, struct lnet_msg *msg);
732 /* initialized and finalize portals */
733 int lnet_portals_create(void);
734 void lnet_portals_destroy(void);
736 /* message functions */
737 int lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr,
738 lnet_nid_t fromnid, void *private, int rdma_req);
739 void lnet_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed,
740 unsigned int offset, unsigned int mlen, unsigned int rlen);
741 lnet_msg_t *lnet_create_reply_msg(lnet_ni_t *ni, lnet_msg_t *get_msg);
742 void lnet_set_reply_msg_len(lnet_ni_t *ni, lnet_msg_t *msg, unsigned int len);
743 void lnet_finalize(lnet_ni_t *ni, lnet_msg_t *msg, int rc);
744 void lnet_drop_delayed_msg_list(struct list_head *head, char *reason);
745 void lnet_recv_delayed_msg_list(struct list_head *head);
747 int lnet_msg_container_setup(struct lnet_msg_container *container, int cpt);
748 void lnet_msg_container_cleanup(struct lnet_msg_container *container);
749 void lnet_msg_containers_destroy(void);
750 int lnet_msg_containers_create(void);
752 char *lnet_msgtyp2str(int type);
753 void lnet_print_hdr(lnet_hdr_t *hdr);
754 int lnet_fail_nid(lnet_nid_t nid, unsigned int threshold);
756 void lnet_counters_get(lnet_counters_t *counters);
757 void lnet_counters_reset(void);
759 unsigned int lnet_iov_nob(unsigned int niov, struct iovec *iov);
760 int lnet_extract_iov(int dst_niov, struct iovec *dst,
761 int src_niov, struct iovec *src,
762 unsigned int offset, unsigned int len);
764 unsigned int lnet_kiov_nob(unsigned int niov, lnet_kiov_t *iov);
765 int lnet_extract_kiov(int dst_niov, lnet_kiov_t *dst,
766 int src_niov, lnet_kiov_t *src,
767 unsigned int offset, unsigned int len);
769 void lnet_copy_iov2iov(unsigned int ndiov, struct iovec *diov,
770 unsigned int doffset,
771 unsigned int nsiov, struct iovec *siov,
772 unsigned int soffset, unsigned int nob);
773 void lnet_copy_kiov2iov(unsigned int niov, struct iovec *iov,
774 unsigned int iovoffset,
775 unsigned int nkiov, lnet_kiov_t *kiov,
776 unsigned int kiovoffset, unsigned int nob);
777 void lnet_copy_iov2kiov(unsigned int nkiov, lnet_kiov_t *kiov,
778 unsigned int kiovoffset,
779 unsigned int niov, struct iovec *iov,
780 unsigned int iovoffset, unsigned int nob);
781 void lnet_copy_kiov2kiov(unsigned int ndkiov, lnet_kiov_t *dkiov,
782 unsigned int doffset,
783 unsigned int nskiov, lnet_kiov_t *skiov,
784 unsigned int soffset, unsigned int nob);
787 lnet_copy_iov2flat(int dlen, void *dest, unsigned int doffset,
788 unsigned int nsiov, struct iovec *siov, unsigned int soffset,
791 struct iovec diov = {/*.iov_base = */ dest, /*.iov_len = */ dlen};
793 lnet_copy_iov2iov(1, &diov, doffset,
794 nsiov, siov, soffset, nob);
798 lnet_copy_kiov2flat(int dlen, void *dest, unsigned int doffset,
799 unsigned int nsiov, lnet_kiov_t *skiov, unsigned int soffset,
802 struct iovec diov = {/* .iov_base = */ dest, /* .iov_len = */ dlen};
804 lnet_copy_kiov2iov(1, &diov, doffset,
805 nsiov, skiov, soffset, nob);
809 lnet_copy_flat2iov(unsigned int ndiov, struct iovec *diov, unsigned int doffset,
810 int slen, void *src, unsigned int soffset, unsigned int nob)
812 struct iovec siov = {/*.iov_base = */ src, /*.iov_len = */slen};
813 lnet_copy_iov2iov(ndiov, diov, doffset,
814 1, &siov, soffset, nob);
818 lnet_copy_flat2kiov(unsigned int ndiov, lnet_kiov_t *dkiov, unsigned int doffset,
819 int slen, void *src, unsigned int soffset, unsigned int nob)
821 struct iovec siov = {/* .iov_base = */ src, /* .iov_len = */ slen};
822 lnet_copy_iov2kiov(ndiov, dkiov, doffset,
823 1, &siov, soffset, nob);
826 void lnet_me_unlink(lnet_me_t *me);
828 void lnet_md_unlink(lnet_libmd_t *md);
829 void lnet_md_deconstruct(lnet_libmd_t *lmd, lnet_md_t *umd);
831 void lnet_register_lnd(lnd_t *lnd);
832 void lnet_unregister_lnd(lnd_t *lnd);
833 int lnet_set_ip_niaddr(lnet_ni_t *ni);
835 int lnet_connect(socket_t **sockp, lnet_nid_t peer_nid,
836 __u32 local_ip, __u32 peer_ip, int peer_port);
837 void lnet_connect_console_error(int rc, lnet_nid_t peer_nid,
838 __u32 peer_ip, int port);
839 int lnet_count_acceptor_nis(void);
840 int lnet_acceptor_timeout(void);
841 int lnet_acceptor_port(void);
843 int lnet_count_acceptor_nis(void);
844 int lnet_acceptor_port(void);
846 int lnet_acceptor_start(void);
847 void lnet_acceptor_stop(void);
849 void lnet_get_tunables(void);
850 int lnet_peers_start_down(void);
851 int lnet_peer_buffer_credits(lnet_ni_t *ni);
853 int lnet_router_checker_start(void);
854 void lnet_router_checker_stop(void);
855 void lnet_swap_pinginfo(lnet_ping_info_t *info);
857 int lnet_ping_target_init(void);
858 void lnet_ping_target_fini(void);
859 int lnet_ping(lnet_process_id_t id, int timeout_ms,
860 lnet_process_id_t *ids, int n_ids);
862 int lnet_parse_ip2nets(char **networksp, char *ip2nets);
863 int lnet_parse_routes(char *route_str, int *im_a_router);
864 int lnet_parse_networks(struct list_head *nilist, char *networks);
866 int lnet_nid2peer_locked(lnet_peer_t **lpp, lnet_nid_t nid, int cpt);
867 lnet_peer_t *lnet_find_peer_locked(struct lnet_peer_table *ptable,
869 void lnet_peer_tables_cleanup(void);
870 void lnet_peer_tables_destroy(void);
871 int lnet_peer_tables_create(void);
872 void lnet_debug_peer(lnet_nid_t nid);