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, 2015, 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__
45 # error This include is only for kernel use.
48 #include <libcfs/libcfs.h>
50 #include <lnet/lnet.h>
51 #include <lnet/lib-types.h>
53 extern lnet_t the_lnet; /* THE network */
55 #if (BITS_PER_LONG == 32)
56 /* 2 CPTs, allowing more CPTs might make us under memory pressure */
57 # define LNET_CPT_MAX_BITS 1
59 #else /* 64-bit system */
61 * 256 CPTs for thousands of CPUs, allowing more CPTs might make us
62 * under risk of consuming all lh_cookie.
64 # define LNET_CPT_MAX_BITS 8
65 #endif /* BITS_PER_LONG == 32 */
67 /* max allowed CPT number */
68 #define LNET_CPT_MAX (1 << LNET_CPT_MAX_BITS)
70 #define LNET_CPT_NUMBER (the_lnet.ln_cpt_number)
71 #define LNET_CPT_BITS (the_lnet.ln_cpt_bits)
72 #define LNET_CPT_MASK ((1ULL << LNET_CPT_BITS) - 1)
75 #define LNET_LOCK_EX CFS_PERCPT_LOCK_EX
77 static inline int lnet_is_route_alive(lnet_route_t *route)
79 if (!route->lr_gateway->lp_alive)
80 return 0; /* gateway is down */
81 if ((route->lr_gateway->lp_ping_feats &
82 LNET_PING_FEAT_NI_STATUS) == 0)
83 return 1; /* no NI status, assume it's alive */
84 /* has NI status, check # down NIs */
85 return route->lr_downis == 0;
88 static inline int lnet_is_wire_handle_none (lnet_handle_wire_t *wh)
90 return (wh->wh_interface_cookie == LNET_WIRE_HANDLE_COOKIE_NONE &&
91 wh->wh_object_cookie == LNET_WIRE_HANDLE_COOKIE_NONE);
94 static inline int lnet_md_exhausted (lnet_libmd_t *md)
96 return (md->md_threshold == 0 ||
97 ((md->md_options & LNET_MD_MAX_SIZE) != 0 &&
98 md->md_offset + md->md_max_size > md->md_length));
101 static inline int lnet_md_unlinkable (lnet_libmd_t *md)
103 /* Should unlink md when its refcount is 0 and either:
104 * - md has been flagged for deletion (by auto unlink or LNetM[DE]Unlink,
105 * in the latter case md may not be exhausted).
106 * - auto unlink is on and md is exhausted.
108 if (md->md_refcount != 0)
111 if ((md->md_flags & LNET_MD_FLAG_ZOMBIE) != 0)
114 return ((md->md_flags & LNET_MD_FLAG_AUTO_UNLINK) != 0 &&
115 lnet_md_exhausted(md));
118 #define lnet_cpt_table() (the_lnet.ln_cpt_table)
119 #define lnet_cpt_current() cfs_cpt_current(the_lnet.ln_cpt_table, 1)
122 lnet_cpt_of_cookie(__u64 cookie)
124 unsigned int cpt = (cookie >> LNET_COOKIE_TYPE_BITS) & LNET_CPT_MASK;
126 /* LNET_CPT_NUMBER doesn't have to be power2, which means we can
127 * get illegal cpt from it's invalid cookie */
128 return cpt < LNET_CPT_NUMBER ? cpt : cpt % LNET_CPT_NUMBER;
132 lnet_res_lock(int cpt)
134 cfs_percpt_lock(the_lnet.ln_res_lock, cpt);
138 lnet_res_unlock(int cpt)
140 cfs_percpt_unlock(the_lnet.ln_res_lock, cpt);
144 lnet_res_lock_current(void)
146 int cpt = lnet_cpt_current();
153 lnet_net_lock(int cpt)
155 cfs_percpt_lock(the_lnet.ln_net_lock, cpt);
159 lnet_net_unlock(int cpt)
161 cfs_percpt_unlock(the_lnet.ln_net_lock, cpt);
165 lnet_net_lock_current(void)
167 int cpt = lnet_cpt_current();
173 #define LNET_LOCK() lnet_net_lock(LNET_LOCK_EX)
174 #define LNET_UNLOCK() lnet_net_unlock(LNET_LOCK_EX)
176 #define lnet_ptl_lock(ptl) spin_lock(&(ptl)->ptl_lock)
177 #define lnet_ptl_unlock(ptl) spin_unlock(&(ptl)->ptl_lock)
178 #define lnet_eq_wait_lock() spin_lock(&the_lnet.ln_eq_wait_lock)
179 #define lnet_eq_wait_unlock() spin_unlock(&the_lnet.ln_eq_wait_lock)
180 #define lnet_ni_lock(ni) spin_lock(&(ni)->ni_lock)
181 #define lnet_ni_unlock(ni) spin_unlock(&(ni)->ni_lock)
182 #define LNET_MUTEX_LOCK(m) mutex_lock(m)
183 #define LNET_MUTEX_UNLOCK(m) mutex_unlock(m)
185 #define MAX_PORTALS 64
187 static inline lnet_eq_t *
192 LIBCFS_ALLOC(eq, sizeof(*eq));
197 lnet_eq_free(lnet_eq_t *eq)
199 LIBCFS_FREE(eq, sizeof(*eq));
202 static inline lnet_libmd_t *
203 lnet_md_alloc (lnet_md_t *umd)
209 if ((umd->options & LNET_MD_KIOV) != 0) {
211 size = offsetof(lnet_libmd_t, md_iov.kiov[niov]);
213 niov = ((umd->options & LNET_MD_IOVEC) != 0) ?
215 size = offsetof(lnet_libmd_t, md_iov.iov[niov]);
218 LIBCFS_ALLOC(md, size);
221 /* Set here in case of early free */
222 md->md_options = umd->options;
224 INIT_LIST_HEAD(&md->md_list);
231 lnet_md_free(lnet_libmd_t *md)
235 if ((md->md_options & LNET_MD_KIOV) != 0)
236 size = offsetof(lnet_libmd_t, md_iov.kiov[md->md_niov]);
238 size = offsetof(lnet_libmd_t, md_iov.iov[md->md_niov]);
240 LIBCFS_FREE(md, size);
243 static inline lnet_me_t *
248 LIBCFS_ALLOC(me, sizeof(*me));
253 lnet_me_free(lnet_me_t *me)
255 LIBCFS_FREE(me, sizeof(*me));
258 static inline lnet_msg_t *
263 LIBCFS_ALLOC(msg, sizeof(*msg));
265 /* no need to zero, LIBCFS_ALLOC does for us */
270 lnet_msg_free(lnet_msg_t *msg)
272 LASSERT(!msg->msg_onactivelist);
273 LIBCFS_FREE(msg, sizeof(*msg));
276 lnet_libhandle_t *lnet_res_lh_lookup(struct lnet_res_container *rec,
278 void lnet_res_lh_initialize(struct lnet_res_container *rec,
279 lnet_libhandle_t *lh);
281 lnet_res_lh_invalidate(lnet_libhandle_t *lh)
283 /* ALWAYS called with resource lock held */
284 /* NB: cookie is still useful, don't reset it */
285 list_del(&lh->lh_hash_chain);
289 lnet_eq2handle (lnet_handle_eq_t *handle, lnet_eq_t *eq)
292 LNetInvalidateHandle(handle);
296 handle->cookie = eq->eq_lh.lh_cookie;
299 static inline lnet_eq_t *
300 lnet_handle2eq(lnet_handle_eq_t *handle)
302 /* ALWAYS called with resource lock held */
303 lnet_libhandle_t *lh;
305 lh = lnet_res_lh_lookup(&the_lnet.ln_eq_container, handle->cookie);
309 return lh_entry(lh, lnet_eq_t, eq_lh);
313 lnet_md2handle (lnet_handle_md_t *handle, lnet_libmd_t *md)
315 handle->cookie = md->md_lh.lh_cookie;
318 static inline lnet_libmd_t *
319 lnet_handle2md(lnet_handle_md_t *handle)
321 /* ALWAYS called with resource lock held */
322 lnet_libhandle_t *lh;
325 cpt = lnet_cpt_of_cookie(handle->cookie);
326 lh = lnet_res_lh_lookup(the_lnet.ln_md_containers[cpt],
331 return lh_entry(lh, lnet_libmd_t, md_lh);
334 static inline lnet_libmd_t *
335 lnet_wire_handle2md(lnet_handle_wire_t *wh)
337 /* ALWAYS called with resource lock held */
338 lnet_libhandle_t *lh;
341 if (wh->wh_interface_cookie != the_lnet.ln_interface_cookie)
344 cpt = lnet_cpt_of_cookie(wh->wh_object_cookie);
345 lh = lnet_res_lh_lookup(the_lnet.ln_md_containers[cpt],
346 wh->wh_object_cookie);
350 return lh_entry(lh, lnet_libmd_t, md_lh);
354 lnet_me2handle (lnet_handle_me_t *handle, lnet_me_t *me)
356 handle->cookie = me->me_lh.lh_cookie;
359 static inline lnet_me_t *
360 lnet_handle2me(lnet_handle_me_t *handle)
362 /* ALWAYS called with resource lock held */
363 lnet_libhandle_t *lh;
366 cpt = lnet_cpt_of_cookie(handle->cookie);
367 lh = lnet_res_lh_lookup(the_lnet.ln_me_containers[cpt],
372 return lh_entry(lh, lnet_me_t, me_lh);
376 lnet_peer_addref_locked(lnet_peer_t *lp)
378 LASSERT (lp->lp_refcount > 0);
382 extern void lnet_destroy_peer_locked(lnet_peer_t *lp);
385 lnet_peer_decref_locked(lnet_peer_t *lp)
387 LASSERT (lp->lp_refcount > 0);
389 if (lp->lp_refcount == 0)
390 lnet_destroy_peer_locked(lp);
394 lnet_isrouter(lnet_peer_t *lp)
396 return lp->lp_rtr_refcount != 0;
400 lnet_ni_addref_locked(lnet_ni_t *ni, int cpt)
402 LASSERT(cpt >= 0 && cpt < LNET_CPT_NUMBER);
403 LASSERT(*ni->ni_refs[cpt] >= 0);
405 (*ni->ni_refs[cpt])++;
409 lnet_ni_addref(lnet_ni_t *ni)
412 lnet_ni_addref_locked(ni, 0);
417 lnet_ni_decref_locked(lnet_ni_t *ni, int cpt)
419 LASSERT(cpt >= 0 && cpt < LNET_CPT_NUMBER);
420 LASSERT(*ni->ni_refs[cpt] > 0);
422 (*ni->ni_refs[cpt])--;
426 lnet_ni_decref(lnet_ni_t *ni)
429 lnet_ni_decref_locked(ni, 0);
433 void lnet_ni_free(lnet_ni_t *ni);
435 lnet_ni_alloc(__u32 net, struct cfs_expr_list *el, struct list_head *nilist);
438 lnet_nid2peerhash(lnet_nid_t nid)
440 return hash_long(nid, LNET_PEER_HASH_BITS);
443 static inline struct list_head *
444 lnet_net2rnethash(__u32 net)
446 return &the_lnet.ln_remote_nets_hash[(LNET_NETNUM(net) +
448 ((1U << the_lnet.ln_remote_nets_hbits) - 1)];
451 extern lnd_t the_lolnd;
452 extern int avoid_asym_router_failure;
454 extern int lnet_cpt_of_nid_locked(lnet_nid_t nid);
455 extern int lnet_cpt_of_nid(lnet_nid_t nid);
456 extern lnet_ni_t *lnet_nid2ni_locked(lnet_nid_t nid, int cpt);
457 extern lnet_ni_t *lnet_net2ni_locked(__u32 net, int cpt);
458 extern lnet_ni_t *lnet_net2ni(__u32 net);
460 int lnet_lib_init(void);
461 void lnet_lib_exit(void);
463 extern int portal_rotor;
465 int lnet_notify(lnet_ni_t *ni, lnet_nid_t peer, int alive, cfs_time_t when);
466 void lnet_notify_locked(lnet_peer_t *lp, int notifylnd, int alive, cfs_time_t when);
467 int lnet_add_route(__u32 net, unsigned int hops, lnet_nid_t gateway_nid,
468 unsigned int priority);
469 int lnet_check_routes(void);
470 int lnet_del_route(__u32 net, lnet_nid_t gw_nid);
471 void lnet_destroy_routes(void);
472 int lnet_get_route(int idx, __u32 *net, __u32 *hops,
473 lnet_nid_t *gateway, __u32 *alive, __u32 *priority);
474 int lnet_get_net_config(int idx,
478 int *peer_tx_credits,
481 struct lnet_ioctl_net_config *net_config);
482 int lnet_get_rtr_pool_cfg(int idx, struct lnet_ioctl_pool_cfg *pool_cfg);
484 struct libcfs_ioctl_handler {
485 struct list_head item;
486 int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_hdr *hdr);
489 #define DECLARE_IOCTL_HANDLER(ident, func) \
490 static struct libcfs_ioctl_handler ident = { \
491 /* .item = */ LIST_HEAD_INIT(ident.item), \
492 /* .handle_ioctl = */ func \
495 extern int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand);
496 extern int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand);
497 extern int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp,
498 struct libcfs_ioctl_hdr __user *uparam);
500 void lnet_proc_init(void);
501 void lnet_proc_fini(void);
502 int lnet_rtrpools_alloc(int im_a_router);
503 void lnet_destroy_rtrbuf(lnet_rtrbuf_t *rb, int npages);
504 int lnet_rtrpools_adjust(int tiny, int small, int large);
505 int lnet_rtrpools_enable(void);
506 void lnet_rtrpools_disable(void);
507 void lnet_rtrpools_free(int keep_pools);
508 lnet_remotenet_t *lnet_find_net_locked (__u32 net);
509 int lnet_dyn_add_ni(lnet_pid_t requested_pid, char *nets,
510 __s32 peer_timeout, __s32 peer_cr, __s32 peer_buf_cr,
512 int lnet_dyn_del_ni(__u32 net);
513 int lnet_clear_lazy_portal(struct lnet_ni *ni, int portal, char *reason);
515 int lnet_islocalnid(lnet_nid_t nid);
516 int lnet_islocalnet(__u32 net);
518 void lnet_msg_attach_md(lnet_msg_t *msg, lnet_libmd_t *md,
519 unsigned int offset, unsigned int mlen);
520 void lnet_msg_detach_md(lnet_msg_t *msg, int status);
521 void lnet_build_unlink_event(lnet_libmd_t *md, lnet_event_t *ev);
522 void lnet_build_msg_event(lnet_msg_t *msg, lnet_event_kind_t ev_type);
523 void lnet_msg_commit(lnet_msg_t *msg, int cpt);
524 void lnet_msg_decommit(lnet_msg_t *msg, int cpt, int status);
526 void lnet_eq_enqueue_event(lnet_eq_t *eq, lnet_event_t *ev);
527 void lnet_prep_send(lnet_msg_t *msg, int type, lnet_process_id_t target,
528 unsigned int offset, unsigned int len);
529 int lnet_send(lnet_nid_t nid, lnet_msg_t *msg, lnet_nid_t rtr_nid);
530 void lnet_return_tx_credits_locked(lnet_msg_t *msg);
531 void lnet_return_rx_credits_locked(lnet_msg_t *msg);
532 void lnet_schedule_blocked_locked(lnet_rtrbufpool_t *rbp);
533 void lnet_drop_routed_msgs_locked(struct list_head *list, int cpt);
535 /* portals functions */
536 /* portals attributes */
538 lnet_ptl_is_lazy(lnet_portal_t *ptl)
540 return !!(ptl->ptl_options & LNET_PTL_LAZY);
544 lnet_ptl_is_unique(lnet_portal_t *ptl)
546 return !!(ptl->ptl_options & LNET_PTL_MATCH_UNIQUE);
550 lnet_ptl_is_wildcard(lnet_portal_t *ptl)
552 return !!(ptl->ptl_options & LNET_PTL_MATCH_WILDCARD);
556 lnet_ptl_setopt(lnet_portal_t *ptl, int opt)
558 ptl->ptl_options |= opt;
562 lnet_ptl_unsetopt(lnet_portal_t *ptl, int opt)
564 ptl->ptl_options &= ~opt;
567 /* match-table functions */
568 struct list_head *lnet_mt_match_head(struct lnet_match_table *mtable,
569 lnet_process_id_t id, __u64 mbits);
570 struct lnet_match_table *lnet_mt_of_attach(unsigned int index,
571 lnet_process_id_t id, __u64 mbits,
574 int lnet_mt_match_md(struct lnet_match_table *mtable,
575 struct lnet_match_info *info, struct lnet_msg *msg);
577 /* portals match/attach functions */
578 void lnet_ptl_attach_md(lnet_me_t *me, lnet_libmd_t *md,
579 struct list_head *matches, struct list_head *drops);
580 void lnet_ptl_detach_md(lnet_me_t *me, lnet_libmd_t *md);
581 int lnet_ptl_match_md(struct lnet_match_info *info, struct lnet_msg *msg);
583 /* initialized and finalize portals */
584 int lnet_portals_create(void);
585 void lnet_portals_destroy(void);
587 /* message functions */
588 int lnet_parse (lnet_ni_t *ni, lnet_hdr_t *hdr,
589 lnet_nid_t fromnid, void *private, int rdma_req);
590 int lnet_parse_local(lnet_ni_t *ni, lnet_msg_t *msg);
591 int lnet_parse_forward_locked(lnet_ni_t *ni, lnet_msg_t *msg);
593 void lnet_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed,
594 unsigned int offset, unsigned int mlen, unsigned int rlen);
595 void lnet_ni_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg,
596 int delayed, unsigned int offset,
597 unsigned int mlen, unsigned int rlen);
599 lnet_msg_t *lnet_create_reply_msg (lnet_ni_t *ni, lnet_msg_t *get_msg);
600 void lnet_set_reply_msg_len(lnet_ni_t *ni, lnet_msg_t *msg, unsigned int len);
602 void lnet_finalize(lnet_ni_t *ni, lnet_msg_t *msg, int rc);
604 void lnet_drop_message(lnet_ni_t *ni, int cpt, void *private,
606 void lnet_drop_delayed_msg_list(struct list_head *head, char *reason);
607 void lnet_recv_delayed_msg_list(struct list_head *head);
609 int lnet_msg_container_setup(struct lnet_msg_container *container, int cpt);
610 void lnet_msg_container_cleanup(struct lnet_msg_container *container);
611 void lnet_msg_containers_destroy(void);
612 int lnet_msg_containers_create(void);
614 char *lnet_msgtyp2str (int type);
615 void lnet_print_hdr (lnet_hdr_t * hdr);
616 int lnet_fail_nid(lnet_nid_t nid, unsigned int threshold);
618 /** \addtogroup lnet_fault_simulation @{ */
620 int lnet_fault_ctl(int cmd, struct libcfs_ioctl_data *data);
621 int lnet_fault_init(void);
622 void lnet_fault_fini(void);
624 bool lnet_drop_rule_match(lnet_hdr_t *hdr);
626 int lnet_delay_rule_add(struct lnet_fault_attr *attr);
627 int lnet_delay_rule_del(lnet_nid_t src, lnet_nid_t dst, bool shutdown);
628 int lnet_delay_rule_list(int pos, struct lnet_fault_attr *attr,
629 struct lnet_fault_stat *stat);
630 void lnet_delay_rule_reset(void);
631 void lnet_delay_rule_check(void);
632 bool lnet_delay_rule_match_locked(lnet_hdr_t *hdr, struct lnet_msg *msg);
634 /** @} lnet_fault_simulation */
636 void lnet_counters_get(lnet_counters_t *counters);
637 void lnet_counters_reset(void);
639 unsigned int lnet_iov_nob (unsigned int niov, struct iovec *iov);
640 int lnet_extract_iov (int dst_niov, struct iovec *dst,
641 int src_niov, struct iovec *src,
642 unsigned int offset, unsigned int len);
644 unsigned int lnet_kiov_nob (unsigned int niov, lnet_kiov_t *iov);
645 int lnet_extract_kiov (int dst_niov, lnet_kiov_t *dst,
646 int src_niov, lnet_kiov_t *src,
647 unsigned int offset, unsigned int len);
649 void lnet_copy_iov2iov (unsigned int ndiov, struct iovec *diov,
650 unsigned int doffset,
651 unsigned int nsiov, struct iovec *siov,
652 unsigned int soffset, unsigned int nob);
653 void lnet_copy_kiov2iov (unsigned int niov, struct iovec *iov,
654 unsigned int iovoffset,
655 unsigned int nkiov, lnet_kiov_t *kiov,
656 unsigned int kiovoffset, unsigned int nob);
657 void lnet_copy_iov2kiov (unsigned int nkiov, lnet_kiov_t *kiov,
658 unsigned int kiovoffset,
659 unsigned int niov, struct iovec *iov,
660 unsigned int iovoffset, unsigned int nob);
661 void lnet_copy_kiov2kiov (unsigned int ndkiov, lnet_kiov_t *dkiov,
662 unsigned int doffset,
663 unsigned int nskiov, lnet_kiov_t *skiov,
664 unsigned int soffset, unsigned int nob);
667 lnet_copy_iov2flat(int dlen, __user void *dest, unsigned int doffset,
668 unsigned int nsiov, struct iovec *siov, unsigned int soffset,
671 struct iovec diov = {/*.iov_base = */ dest, /*.iov_len = */ dlen};
673 lnet_copy_iov2iov(1, &diov, doffset,
674 nsiov, siov, soffset, nob);
678 lnet_copy_kiov2flat(int dlen, void __user *dest, unsigned int doffset,
679 unsigned int nsiov, lnet_kiov_t *skiov,
680 unsigned int soffset, unsigned int nob)
682 struct iovec diov = {/* .iov_base = */ dest, /* .iov_len = */ dlen};
684 lnet_copy_kiov2iov(1, &diov, doffset,
685 nsiov, skiov, soffset, nob);
689 lnet_copy_flat2iov(unsigned int ndiov, struct iovec *diov, unsigned int doffset,
690 int slen, void __user *src, unsigned int soffset,
693 struct iovec siov = {/*.iov_base = */ src, /*.iov_len = */slen};
694 lnet_copy_iov2iov(ndiov, diov, doffset,
695 1, &siov, soffset, nob);
699 lnet_copy_flat2kiov(unsigned int ndiov, lnet_kiov_t *dkiov,
700 unsigned int doffset, int slen, void __user *src,
701 unsigned int soffset, unsigned int nob)
703 struct iovec siov = {/* .iov_base = */ src, /* .iov_len = */ slen};
704 lnet_copy_iov2kiov(ndiov, dkiov, doffset,
705 1, &siov, soffset, nob);
708 void lnet_me_unlink(lnet_me_t *me);
710 void lnet_md_unlink(lnet_libmd_t *md);
711 void lnet_md_deconstruct(lnet_libmd_t *lmd, lnet_md_t *umd);
713 void lnet_register_lnd(lnd_t *lnd);
714 void lnet_unregister_lnd(lnd_t *lnd);
716 int lnet_connect(struct socket **sockp, lnet_nid_t peer_nid,
717 __u32 local_ip, __u32 peer_ip, int peer_port);
718 void lnet_connect_console_error(int rc, lnet_nid_t peer_nid,
719 __u32 peer_ip, int port);
720 int lnet_count_acceptor_nis(void);
721 int lnet_acceptor_timeout(void);
722 int lnet_acceptor_port(void);
723 int lnet_acceptor_start(void);
724 void lnet_acceptor_stop(void);
726 int lnet_ipif_query(char *name, int *up, __u32 *ip, __u32 *mask);
727 int lnet_ipif_enumerate(char ***names);
728 void lnet_ipif_free_enumeration(char **names, int n);
729 int lnet_sock_setbuf(struct socket *socket, int txbufsize, int rxbufsize);
730 int lnet_sock_getbuf(struct socket *socket, int *txbufsize, int *rxbufsize);
731 int lnet_sock_getaddr(struct socket *socket, bool remote, __u32 *ip, int *port);
732 int lnet_sock_write(struct socket *sock, void *buffer, int nob, int timeout);
733 int lnet_sock_read(struct socket *sock, void *buffer, int nob, int timeout);
735 int lnet_sock_listen(struct socket **sockp, __u32 ip, int port, int backlog);
736 int lnet_sock_accept(struct socket **newsockp, struct socket *sock);
737 int lnet_sock_connect(struct socket **sockp, int *fatal,
738 __u32 local_ip, int local_port,
739 __u32 peer_ip, int peer_port);
741 int lnet_peers_start_down(void);
742 int lnet_peer_buffer_credits(lnet_ni_t *ni);
744 int lnet_router_checker_start(void);
745 void lnet_router_checker_stop(void);
746 void lnet_router_ni_update_locked(lnet_peer_t *gw, __u32 net);
747 void lnet_swap_pinginfo(lnet_ping_info_t *info);
749 int lnet_parse_ip2nets(char **networksp, char *ip2nets);
750 int lnet_parse_routes(char *route_str, int *im_a_router);
751 int lnet_parse_networks(struct list_head *nilist, char *networks);
752 int lnet_net_unique(__u32 net, struct list_head *nilist);
754 int lnet_nid2peer_locked(lnet_peer_t **lpp, lnet_nid_t nid, int cpt);
755 lnet_peer_t *lnet_find_peer_locked(struct lnet_peer_table *ptable,
757 void lnet_peer_tables_cleanup(lnet_ni_t *ni);
758 void lnet_peer_tables_destroy(void);
759 int lnet_peer_tables_create(void);
760 void lnet_debug_peer(lnet_nid_t nid);
761 int lnet_get_peer_info(__u32 peer_index, __u64 *nid,
762 char alivness[LNET_MAX_STR_LEN],
763 __u32 *cpt_iter, __u32 *refcount,
764 __u32 *ni_peer_tx_credits, __u32 *peer_tx_credits,
765 __u32 *peer_rtr_credits, __u32 *peer_min_rtr_credtis,
766 __u32 *peer_tx_qnob);
769 lnet_peer_set_alive(lnet_peer_t *lp)
771 lp->lp_last_alive = lp->lp_last_query = cfs_time_current();
773 lnet_notify_locked(lp, 0, 1, lp->lp_last_alive);