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-types.h
36 * Types used by the library side routines that do not need to be
37 * exposed to the user application
40 #ifndef __LNET_LIB_TYPES_H__
41 #define __LNET_LIB_TYPES_H__
43 #if defined(__linux__)
44 #include <lnet/linux/lib-types.h>
45 #elif defined(__APPLE__)
46 #include <lnet/darwin/lib-types.h>
47 #elif defined(__WINNT__)
48 #include <lnet/winnt/lib-types.h>
50 #error Unsupported Operating System
53 #include <libcfs/libcfs.h>
54 #include <libcfs/list.h>
55 #include <lnet/types.h>
57 #define WIRE_ATTR __attribute__((packed))
59 /* Packed version of lnet_process_id_t to transfer via network */
60 #include <libcfs/libcfs_pack.h>
63 lnet_pid_t pid; /* node id / process id */
64 } WIRE_ATTR lnet_process_id_packed_t;
66 /* The wire handle's interface cookie only matches one network interface in
67 * one epoch (i.e. new cookie when the interface restarts or the node
68 * reboots). The object cookie only matches one object on that interface
69 * during that object's lifetime (i.e. no cookie re-use). */
71 __u64 wh_interface_cookie;
72 __u64 wh_object_cookie;
73 } WIRE_ATTR lnet_handle_wire_t;
74 #include <libcfs/libcfs_unpack.h>
84 /* The variant fields of the portals message header are aligned on an 8
85 * byte boundary in the message header. Note that all types used in these
86 * wire structs MUST be fixed size and the smaller types are placed at the
88 #include <libcfs/libcfs_pack.h>
89 typedef struct lnet_ack {
90 lnet_handle_wire_t dst_wmd;
93 } WIRE_ATTR lnet_ack_t;
95 typedef struct lnet_put {
96 lnet_handle_wire_t ack_wmd;
101 } WIRE_ATTR lnet_put_t;
103 typedef struct lnet_get {
104 lnet_handle_wire_t return_wmd;
109 } WIRE_ATTR lnet_get_t;
111 typedef struct lnet_reply {
112 lnet_handle_wire_t dst_wmd;
113 } WIRE_ATTR lnet_reply_t;
115 typedef struct lnet_hello {
118 } WIRE_ATTR lnet_hello_t;
125 __u32 type; /* lnet_msg_type_t */
126 __u32 payload_length; /* payload data to follow */
127 /*<------__u64 aligned------->*/
135 } WIRE_ATTR lnet_hdr_t;
137 /* A HELLO message contains a magic number and protocol version
138 * code in the header's dest_nid, the peer's NID in the src_nid, and
139 * LNET_MSG_HELLO in the type field. All other common fields are zero
140 * (including payload_size; i.e. no payload).
141 * This is for use by byte-stream LNDs (e.g. TCP/IP) to check the peer is
142 * running the same protocol and to find out its NID. These LNDs should
143 * exchange HELLO messages when a connection is first established. Individual
144 * LNDs can put whatever else they fancy in lnet_hdr_t::msg.
147 __u32 magic; /* LNET_PROTO_TCP_MAGIC */
148 __u16 version_major; /* increment on incompatible change */
149 __u16 version_minor; /* increment on compatible change */
150 } WIRE_ATTR lnet_magicversion_t;
152 /* PROTO MAGIC for LNDs */
153 #define LNET_PROTO_IB_MAGIC 0x0be91b91
154 #define LNET_PROTO_RA_MAGIC 0x0be91b92
155 #define LNET_PROTO_QSW_MAGIC 0x0be91b93
156 #define LNET_PROTO_GNI_MAGIC 0xb00fbabe /* ask Kim */
157 #define LNET_PROTO_TCP_MAGIC 0xeebc0ded
158 #define LNET_PROTO_PTL_MAGIC 0x50746C4E /* 'PtlN' unique magic */
159 #define LNET_PROTO_MX_MAGIC 0x4d583130 /* 'MX10'! */
160 #define LNET_PROTO_ACCEPTOR_MAGIC 0xacce7100
161 #define LNET_PROTO_PING_MAGIC 0x70696E67 /* 'ping' */
163 /* Placeholder for a future "unified" protocol across all LNDs */
164 /* Current LNDs that receive a request with this magic will respond with a
165 * "stub" reply using their current protocol */
166 #define LNET_PROTO_MAGIC 0x45726963 /* ! */
169 #define LNET_PROTO_TCP_VERSION_MAJOR 1
170 #define LNET_PROTO_TCP_VERSION_MINOR 0
172 /* Acceptor connection request */
174 __u32 acr_magic; /* PTL_ACCEPTOR_PROTO_MAGIC */
175 __u32 acr_version; /* protocol version */
176 __u64 acr_nid; /* target NID */
177 } WIRE_ATTR lnet_acceptor_connreq_t;
178 #include <libcfs/libcfs_unpack.h>
180 #define LNET_PROTO_ACCEPTOR_VERSION 1
185 typedef struct lnet_msg {
186 cfs_list_t msg_activelist;
187 cfs_list_t msg_list; /* Q for credits/MD */
189 lnet_process_id_t msg_target;
190 /* where is it from, it's only for building event */
194 /* commited for sending */
195 unsigned int msg_tx_committed:1;
196 /* CPT # this message committed for sending */
197 unsigned int msg_tx_cpt:15;
198 /* commited for receiving */
199 unsigned int msg_rx_committed:1;
200 /* CPT # this message committed for receiving */
201 unsigned int msg_rx_cpt:15;
202 /* queued for tx credit */
203 unsigned int msg_tx_delayed:1;
204 /* queued for RX buffer */
205 unsigned int msg_rx_delayed:1;
206 /* ready for pending on RX delay list */
207 unsigned int msg_rx_ready_delay:1;
209 unsigned int msg_vmflush:1; /* VM trying to free memory */
210 unsigned int msg_target_is_router:1; /* sending to a router */
211 unsigned int msg_routing:1; /* being forwarded */
212 unsigned int msg_ack:1; /* ack on finalize (PUT) */
213 unsigned int msg_sending:1; /* outgoing message */
214 unsigned int msg_receiving:1; /* being received */
215 unsigned int msg_txcredit:1; /* taken an NI send credit */
216 unsigned int msg_peertxcredit:1; /* taken a peer send credit */
217 unsigned int msg_rtrcredit:1; /* taken a globel router credit */
218 unsigned int msg_peerrtrcredit:1; /* taken a peer router credit */
219 unsigned int msg_onactivelist:1; /* on the activelist */
221 struct lnet_peer *msg_txpeer; /* peer I'm sending to */
222 struct lnet_peer *msg_rxpeer; /* peer I received from */
225 struct lnet_libmd *msg_md;
227 unsigned int msg_len;
228 unsigned int msg_wanted;
229 unsigned int msg_offset;
230 unsigned int msg_niov;
231 struct iovec *msg_iov;
232 lnet_kiov_t *msg_kiov;
239 typedef struct lnet_libhandle {
240 cfs_list_t lh_hash_chain;
244 #define lh_entry(ptr, type, member) \
245 ((type *)((char *)(ptr)-(char *)(&((type *)0)->member)))
247 typedef struct lnet_eq {
249 lnet_libhandle_t eq_lh;
250 lnet_seq_t eq_enq_seq;
251 lnet_seq_t eq_deq_seq;
252 unsigned int eq_size;
253 lnet_eq_handler_t eq_callback;
254 lnet_event_t *eq_events;
255 int **eq_refs; /* percpt refcount for EQ */
258 typedef struct lnet_me {
260 lnet_libhandle_t me_lh;
261 lnet_process_id_t me_match_id;
262 unsigned int me_portal;
264 __u64 me_ignore_bits;
265 lnet_unlink_t me_unlink;
266 struct lnet_libmd *me_md;
269 typedef struct lnet_libmd {
271 lnet_libhandle_t md_lh;
274 unsigned int md_offset;
275 unsigned int md_length;
276 unsigned int md_max_size;
279 unsigned int md_options;
280 unsigned int md_flags;
283 unsigned int md_niov; /* # frags */
285 struct iovec iov[LNET_MAX_IOV];
286 lnet_kiov_t kiov[LNET_MAX_IOV];
290 #define LNET_MD_FLAG_ZOMBIE (1 << 0)
291 #define LNET_MD_FLAG_AUTO_UNLINK (1 << 1)
293 #ifdef LNET_USE_LIB_FREELIST
296 void *fl_objs; /* single contiguous array of objects */
297 int fl_nobjs; /* the number of them */
298 int fl_objsize; /* the size (including overhead) of each of them */
299 cfs_list_t fl_list; /* where they are enqueued */
304 cfs_list_t fo_list; /* enqueue on fl_list */
305 void *fo_contents; /* aligned contents */
310 /* info about peers we are trying to fail */
311 cfs_list_t tp_list; /* ln_test_peers */
312 lnet_nid_t tp_nid; /* matching nid */
313 unsigned int tp_threshold; /* # failures to simulate */
316 #define LNET_COOKIE_TYPE_MD 1
317 #define LNET_COOKIE_TYPE_ME 2
318 #define LNET_COOKIE_TYPE_EQ 3
319 #define LNET_COOKIE_TYPE_BITS 2
320 #define LNET_COOKIE_MASK ((1ULL << LNET_COOKIE_TYPE_BITS) - 1ULL)
322 struct lnet_ni; /* forward ref */
324 typedef struct lnet_lnd
326 /* fields managed by portals */
327 cfs_list_t lnd_list; /* stash in the LND table */
328 int lnd_refcount; /* # active instances */
330 /* fields initialised by the LND */
331 unsigned int lnd_type;
333 int (*lnd_startup) (struct lnet_ni *ni);
334 void (*lnd_shutdown) (struct lnet_ni *ni);
335 int (*lnd_ctl)(struct lnet_ni *ni, unsigned int cmd, void *arg);
337 /* In data movement APIs below, payload buffers are described as a set
338 * of 'niov' fragments which are...
340 * in virtual memory (struct iovec *iov != NULL)
342 * in pages (kernel only: plt_kiov_t *kiov != NULL).
343 * The LND may NOT overwrite these fragment descriptors.
344 * An 'offset' and may specify a byte offset within the set of
345 * fragments to start from
348 /* Start sending a preformatted message. 'private' is NULL for PUT and
349 * GET messages; otherwise this is a response to an incoming message
350 * and 'private' is the 'private' passed to lnet_parse(). Return
351 * non-zero for immediate failure, otherwise complete later with
353 int (*lnd_send)(struct lnet_ni *ni, void *private, lnet_msg_t *msg);
355 /* Start receiving 'mlen' bytes of payload data, skipping the following
356 * 'rlen' - 'mlen' bytes. 'private' is the 'private' passed to
357 * lnet_parse(). Return non-zero for immedaite failure, otherwise
358 * complete later with lnet_finalize(). This also gives back a receive
359 * credit if the LND does flow control. */
360 int (*lnd_recv)(struct lnet_ni *ni, void *private, lnet_msg_t *msg,
361 int delayed, unsigned int niov,
362 struct iovec *iov, lnet_kiov_t *kiov,
363 unsigned int offset, unsigned int mlen, unsigned int rlen);
365 /* lnet_parse() has had to delay processing of this message
366 * (e.g. waiting for a forwarding buffer or send credits). Give the
367 * LND a chance to free urgently needed resources. If called, return 0
368 * for success and do NOT give back a receive credit; that has to wait
369 * until lnd_recv() gets called. On failure return < 0 and
370 * release resources; lnd_recv() will not be called. */
371 int (*lnd_eager_recv)(struct lnet_ni *ni, void *private, lnet_msg_t *msg,
372 void **new_privatep);
374 /* notification of peer health */
375 void (*lnd_notify)(struct lnet_ni *ni, lnet_nid_t peer, int alive);
377 /* query of peer aliveness */
378 void (*lnd_query)(struct lnet_ni *ni, lnet_nid_t peer, cfs_time_t *when);
380 #if defined(__KERNEL__) || defined(HAVE_LIBPTHREAD)
381 /* accept a new connection */
382 int (*lnd_accept)(struct lnet_ni *ni, cfs_socket_t *sock);
386 /* wait for something to happen */
387 void (*lnd_wait)(struct lnet_ni *ni, int milliseconds);
389 /* ensure non-RDMA messages can be received outside liblustre */
390 int (*lnd_setasync)(struct lnet_ni *ni, lnet_process_id_t id, int nasync);
394 #define LNET_NI_STATUS_UP 0x15aac0de
395 #define LNET_NI_STATUS_DOWN 0xdeadface
396 #define LNET_NI_STATUS_INVALID 0x00000000
401 } WIRE_ATTR lnet_ni_status_t;
403 struct lnet_tx_queue {
404 int tq_credits; /* # tx credits free */
405 int tq_credits_min; /* lowest it's been */
406 int tq_credits_max; /* total # tx credits */
407 cfs_list_t tq_delayed; /* delayed TXs */
410 #define LNET_MAX_INTERFACES 16
412 typedef struct lnet_ni {
414 cfs_spinlock_t ni_lock;
416 # ifndef HAVE_LIBPTHREAD
419 pthread_mutex_t ni_lock;
422 cfs_list_t ni_list; /* chain on ln_nis */
423 cfs_list_t ni_cptlist; /* chain on ln_nis_cpt */
424 int ni_maxtxcredits; /* # tx credits */
425 /* # per-peer send credits */
426 int ni_peertxcredits;
427 /* # per-peer router buffer credits */
428 int ni_peerrtrcredits;
429 /* seconds to consider peer dead */
431 int ni_ncpts; /* number of CPTs */
432 __u32 *ni_cpts; /* bond NI on some CPTs */
433 lnet_nid_t ni_nid; /* interface's NID */
434 void *ni_data; /* instance-specific data */
435 lnd_t *ni_lnd; /* procedural interface */
436 struct lnet_tx_queue **ni_tx_queues; /* percpt TX queues */
437 int **ni_refs; /* percpt reference count */
438 long ni_last_alive; /* when I was last alive */
439 lnet_ni_status_t *ni_status; /* my health status */
440 /* equivalent interfaces to use */
441 char *ni_interfaces[LNET_MAX_INTERFACES];
444 #define LNET_PROTO_PING_MATCHBITS 0x8000000000000000LL
446 /* NB: value of these features equal to LNET_PROTO_PING_VERSION_x
447 * of old LNet, so there shouldn't be any compatibility issue */
448 #define LNET_PING_FEAT_INVAL (0) /* no feature */
449 #define LNET_PING_FEAT_BASE (1 << 0) /* just a ping */
450 #define LNET_PING_FEAT_NI_STATUS (1 << 1) /* return NI status */
452 #define LNET_PING_FEAT_MASK (LNET_PING_FEAT_BASE | \
453 LNET_PING_FEAT_NI_STATUS)
460 lnet_ni_status_t pi_ni[0];
461 } WIRE_ATTR lnet_ping_info_t;
463 /* router checker data, per router */
464 #define LNET_MAX_RTR_NIS 16
465 #define LNET_PINGINFO_SIZE offsetof(lnet_ping_info_t, pi_ni[LNET_MAX_RTR_NIS])
467 /* chain on the_lnet.ln_zombie_rcd or ln_deathrow_rcd */
469 lnet_handle_md_t rcd_mdh; /* ping buffer MD */
470 struct lnet_peer *rcd_gateway; /* reference to gateway */
471 lnet_ping_info_t *rcd_pinginfo; /* ping buffer */
474 typedef struct lnet_peer {
475 cfs_list_t lp_hashlist; /* chain on peer hash */
476 cfs_list_t lp_txq; /* messages blocking for tx credits */
477 cfs_list_t lp_rtrq; /* messages blocking for router credits */
478 cfs_list_t lp_rtr_list; /* chain on router list */
479 int lp_txcredits; /* # tx credits available */
480 int lp_mintxcredits; /* low water mark */
481 int lp_rtrcredits; /* # router credits */
482 int lp_minrtrcredits; /* low water mark */
483 unsigned int lp_alive:1; /* alive/dead? */
484 unsigned int lp_notify:1; /* notification outstanding? */
485 unsigned int lp_notifylnd:1; /* outstanding notification for LND? */
486 unsigned int lp_notifying:1; /* some thread is handling notification */
487 unsigned int lp_ping_notsent; /* SEND event outstanding from ping */
488 int lp_alive_count; /* # times router went dead<->alive */
489 long lp_txqnob; /* bytes queued for sending */
490 cfs_time_t lp_timestamp; /* time of last aliveness news */
491 cfs_time_t lp_ping_timestamp; /* time of last ping attempt */
492 cfs_time_t lp_ping_deadline; /* != 0 if ping reply expected */
493 cfs_time_t lp_last_alive; /* when I was last alive */
494 cfs_time_t lp_last_query; /* when lp_ni was queried last time */
495 lnet_ni_t *lp_ni; /* interface peer is on */
496 lnet_nid_t lp_nid; /* peer's NID */
497 int lp_refcount; /* # refs */
498 int lp_cpt; /* CPT this peer attached on */
499 /* # refs from lnet_route_t::lr_gateway */
501 /* returned RC ping features */
502 unsigned int lp_ping_feats;
503 cfs_list_t lp_routes; /* routers on this peer */
504 lnet_rc_data_t *lp_rcd; /* router checker state */
509 #define LNET_PEER_HASH_BITS 9
510 #define LNET_PEER_HASH_SIZE (1 << LNET_PEER_HASH_BITS)
512 /* peer hash table */
513 struct lnet_peer_table {
514 int pt_version; /* /proc validity stamp */
515 int pt_number; /* # peers extant */
516 cfs_list_t pt_deathrow; /* zombie peers */
517 cfs_list_t *pt_hash; /* NID->peer hash */
520 #define lnet_peer_aliveness_enabled(lp) ((lp)->lp_ni->ni_peertimeout > 0)
523 cfs_list_t lr_list; /* chain on net */
524 cfs_list_t lr_gwlist; /* chain on gateway */
525 lnet_peer_t *lr_gateway; /* router node */
526 __u32 lr_net; /* remote network number */
527 int lr_seq; /* sequence for round-robin */
528 unsigned int lr_downis; /* number of down NIs */
529 unsigned int lr_hops; /* how far I am */
533 cfs_list_t lrn_list; /* chain on ln_remote_nets */
534 cfs_list_t lrn_routes; /* routes to me */
535 __u32 lrn_net; /* my net number */
539 cfs_list_t rbp_bufs; /* my free buffer pool */
540 cfs_list_t rbp_msgs; /* messages blocking for a buffer */
541 int rbp_npages; /* # pages in each buffer */
542 int rbp_nbuffers; /* # buffers */
543 int rbp_credits; /* # free buffers / blocked messages */
544 int rbp_mincredits; /* low water mark */
548 cfs_list_t rb_list; /* chain on rbp_bufs */
549 lnet_rtrbufpool_t *rb_pool; /* owning pool */
550 lnet_kiov_t rb_kiov[0]; /* the buffer space */
553 #include <libcfs/libcfs_pack.h>
566 } WIRE_ATTR lnet_counters_t;
567 #include <libcfs/libcfs_unpack.h>
569 #define LNET_PEER_HASHSIZE 503 /* prime! */
571 #define LNET_NRBPOOLS 3 /* # different router buffer pools */
574 /* Didn't match anything */
575 LNET_MATCHMD_NONE = (1 << 0),
577 LNET_MATCHMD_OK = (1 << 1),
578 /* Must be discarded */
579 LNET_MATCHMD_DROP = (1 << 2),
580 /* match and buffer is exhausted */
581 LNET_MATCHMD_EXHAUSTED = (1 << 3),
583 LNET_MATCHMD_FINISH = (LNET_MATCHMD_OK | LNET_MATCHMD_DROP),
586 /* Options for lnet_portal_t::ptl_options */
587 #define LNET_PTL_LAZY (1 << 0)
588 #define LNET_PTL_MATCH_UNIQUE (1 << 1) /* unique match, for RDMA */
589 #define LNET_PTL_MATCH_WILDCARD (1 << 2) /* wildcard match, request portal */
591 /* parameter for matching operations (GET, PUT) */
592 struct lnet_match_info {
594 lnet_process_id_t mi_id;
596 unsigned int mi_portal;
597 unsigned int mi_rlength;
598 unsigned int mi_roffset;
601 /* ME hash of RDMA portal */
602 #define LNET_MT_HASH_BITS 8
603 #define LNET_MT_HASH_SIZE (1 << LNET_MT_HASH_BITS)
605 /* portal match table */
606 struct lnet_match_table {
607 /* reserved for upcoming patches, CPU partition ID */
609 unsigned int mt_portal; /* portal index */
610 /* match table is set as "enabled" if there's non-exhausted MD
611 * attached on mt_mlist, it's only valide for wildcard portal */
612 unsigned int mt_enabled;
613 cfs_list_t mt_mlist; /* matching list */
614 cfs_list_t *mt_mhash; /* matching hash */
617 /* these are only useful for wildcard portal */
618 /* Turn off message rotor for wildcard portals */
619 #define LNET_PTL_ROTOR_OFF 0
620 /* round-robin dispatch all PUT messages for wildcard portals */
621 #define LNET_PTL_ROTOR_ON 1
622 /* round-robin dispatch routed PUT message for wildcard portals */
623 #define LNET_PTL_ROTOR_RR_RT 2
624 /* dispatch routed PUT message by hashing source NID for wildcard portals */
625 #define LNET_PTL_ROTOR_HASH_RT 3
627 typedef struct lnet_portal {
629 cfs_spinlock_t ptl_lock;
631 # ifndef HAVE_LIBPTHREAD
634 pthread_mutex_t ptl_lock;
637 unsigned int ptl_index; /* portal ID, reserved */
638 /* flags on this portal: lazy, unique... */
639 unsigned int ptl_options;
640 /* list of messags which are stealing buffer */
641 cfs_list_t ptl_msg_stealing;
642 /* messages blocking for MD */
643 cfs_list_t ptl_msg_delayed;
644 /* Match table for each CPT */
645 struct lnet_match_table **ptl_mtables;
646 /* spread rotor of incoming "PUT" */
648 /* # active entries for this portal */
650 /* array of active entries' cpu-partition-id */
654 #define LNET_LH_HASH_BITS 12
655 #define LNET_LH_HASH_SIZE (1ULL << LNET_LH_HASH_BITS)
656 #define LNET_LH_HASH_MASK (LNET_LH_HASH_SIZE - 1)
658 /* resource container (ME, MD, EQ) */
659 struct lnet_res_container {
660 unsigned int rec_type; /* container type */
661 __u64 rec_lh_cookie; /* cookie generator */
662 cfs_list_t rec_active; /* active resource list */
663 cfs_list_t *rec_lh_hash; /* handle hash */
664 #ifdef LNET_USE_LIB_FREELIST
665 lnet_freelist_t rec_freelist; /* freelist for resources */
669 /* message container */
670 struct lnet_msg_container {
671 int msc_init; /* initialized or not */
672 /* max # threads finalizing */
674 /* msgs waiting to complete finalizing */
675 cfs_list_t msc_finalizing;
676 cfs_list_t msc_active; /* active message list */
677 /* threads doing finalization */
678 void **msc_finalizers;
679 #ifdef LNET_USE_LIB_FREELIST
680 lnet_freelist_t msc_freelist; /* freelist for messages */
684 /* Router Checker states */
685 #define LNET_RC_STATE_SHUTDOWN 0 /* not started */
686 #define LNET_RC_STATE_RUNNING 1 /* started up OK */
687 #define LNET_RC_STATE_STOPPING 2 /* telling thread to stop */
691 /* CPU partition table of LNet */
692 struct cfs_cpt_table *ln_cpt_table;
693 /* number of CPTs in ln_cpt_table */
694 unsigned int ln_cpt_number;
695 unsigned int ln_cpt_bits;
697 /* protect LNet resources (ME/MD/EQ) */
698 struct cfs_percpt_lock *ln_res_lock;
701 /* the vector of portals */
702 lnet_portal_t **ln_portals;
703 /* percpt ME containers */
704 struct lnet_res_container **ln_me_containers;
705 /* percpt MD container */
706 struct lnet_res_container **ln_md_containers;
708 /* Event Queue container */
709 struct lnet_res_container ln_eq_container;
711 cfs_waitq_t ln_eq_waitq;
712 cfs_spinlock_t ln_eq_wait_lock;
714 # ifndef HAVE_LIBPTHREAD
717 pthread_cond_t ln_eq_cond;
718 pthread_mutex_t ln_eq_wait_lock;
721 /* protect NI, peer table, credits, routers, rtrbuf... */
722 struct cfs_percpt_lock *ln_net_lock;
723 /* percpt message containers for active/finalizing/freed message */
724 struct lnet_msg_container **ln_msg_containers;
725 lnet_counters_t **ln_counters;
726 struct lnet_peer_table **ln_peer_tables;
727 /* failure simulation */
728 cfs_list_t ln_test_peers;
730 cfs_list_t ln_nis; /* LND instances */
731 /* NIs bond on specific CPT(s) */
732 cfs_list_t ln_nis_cpt;
733 /* dying LND instances */
734 cfs_list_t ln_nis_zombie;
735 lnet_ni_t *ln_loni; /* the loopback NI */
736 /* NI to wait for events in */
737 lnet_ni_t *ln_eq_waitni;
739 /* remote networks with routes to them */
740 cfs_list_t ln_remote_nets;
742 __u64 ln_remote_nets_version;
743 /* list of all known routers */
744 cfs_list_t ln_routers;
746 __u64 ln_routers_version;
747 /* percpt router buffer pools */
748 lnet_rtrbufpool_t **ln_rtrpools;
750 lnet_handle_md_t ln_ping_target_md;
751 lnet_handle_eq_t ln_ping_target_eq;
752 lnet_ping_info_t *ln_ping_info;
754 /* router checker startup/shutdown state */
756 /* router checker's event queue */
757 lnet_handle_eq_t ln_rc_eqh;
758 /* rcd still pending on net */
759 cfs_list_t ln_rcd_deathrow;
760 /* rcd ready for free */
761 cfs_list_t ln_rcd_zombie;
763 /* serialise startup/shutdown */
764 cfs_semaphore_t ln_rc_signal;
766 cfs_mutex_t ln_api_mutex;
767 cfs_mutex_t ln_lnd_mutex;
769 # ifndef HAVE_LIBPTHREAD
773 pthread_mutex_t ln_api_mutex;
774 pthread_mutex_t ln_lnd_mutex;
777 int ln_init; /* LNetInit() called? */
778 /* Have I called LNetNIInit myself? */
780 /* LNetNIInit/LNetNIFini counter */
782 /* shutdown in progress */
785 int ln_routing; /* am I a router? */
786 lnet_pid_t ln_pid; /* requested pid */
787 /* uniquely identifies this ni in this epoch */
788 __u64 ln_interface_cookie;
789 /* registered LNDs */
792 /* space for network names */
793 char *ln_network_tokens;
794 int ln_network_tokens_nob;
795 /* test protocol compatibility flags */
796 int ln_testprotocompat;
799 /* Temporary workaround to allow uOSS and test programs force
800 * server mode in userspace. The only place where we use it is
801 * lnet_prepare(). The only way to turn this flag on is to
802 * call lnet_server_mode() */
803 int ln_server_mode_flag;