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42#ifndef __LNET_LIB_TYPES_H__
43#define __LNET_LIB_TYPES_H__
44
45#include "linux/lib-types.h"
46
47#include "../libcfs/libcfs.h"
48#include <linux/list.h>
49#include "types.h"
50
51#define WIRE_ATTR __attribute__((packed))
52
53
54typedef struct {
55 lnet_nid_t nid;
56 lnet_pid_t pid;
57} WIRE_ATTR lnet_process_id_packed_t;
58
59
60
61
62
63typedef struct {
64 __u64 wh_interface_cookie;
65 __u64 wh_object_cookie;
66} WIRE_ATTR lnet_handle_wire_t;
67
68typedef enum {
69 LNET_MSG_ACK = 0,
70 LNET_MSG_PUT,
71 LNET_MSG_GET,
72 LNET_MSG_REPLY,
73 LNET_MSG_HELLO,
74} lnet_msg_type_t;
75
76
77
78
79
80typedef struct lnet_ack {
81 lnet_handle_wire_t dst_wmd;
82 __u64 match_bits;
83 __u32 mlength;
84} WIRE_ATTR lnet_ack_t;
85
86typedef struct lnet_put {
87 lnet_handle_wire_t ack_wmd;
88 __u64 match_bits;
89 __u64 hdr_data;
90 __u32 ptl_index;
91 __u32 offset;
92} WIRE_ATTR lnet_put_t;
93
94typedef struct lnet_get {
95 lnet_handle_wire_t return_wmd;
96 __u64 match_bits;
97 __u32 ptl_index;
98 __u32 src_offset;
99 __u32 sink_length;
100} WIRE_ATTR lnet_get_t;
101
102typedef struct lnet_reply {
103 lnet_handle_wire_t dst_wmd;
104} WIRE_ATTR lnet_reply_t;
105
106typedef struct lnet_hello {
107 __u64 incarnation;
108 __u32 type;
109} WIRE_ATTR lnet_hello_t;
110
111typedef struct {
112 lnet_nid_t dest_nid;
113 lnet_nid_t src_nid;
114 lnet_pid_t dest_pid;
115 lnet_pid_t src_pid;
116 __u32 type;
117 __u32 payload_length;
118
119 union {
120 lnet_ack_t ack;
121 lnet_put_t put;
122 lnet_get_t get;
123 lnet_reply_t reply;
124 lnet_hello_t hello;
125 } msg;
126} WIRE_ATTR lnet_hdr_t;
127
128
129
130
131
132
133
134
135
136
137typedef struct {
138 __u32 magic;
139 __u16 version_major;
140 __u16 version_minor;
141} WIRE_ATTR lnet_magicversion_t;
142
143
144#define LNET_PROTO_IB_MAGIC 0x0be91b91
145#define LNET_PROTO_RA_MAGIC 0x0be91b92
146#define LNET_PROTO_QSW_MAGIC 0x0be91b93
147#define LNET_PROTO_GNI_MAGIC 0xb00fbabe
148#define LNET_PROTO_TCP_MAGIC 0xeebc0ded
149#define LNET_PROTO_PTL_MAGIC 0x50746C4E
150#define LNET_PROTO_MX_MAGIC 0x4d583130
151#define LNET_PROTO_ACCEPTOR_MAGIC 0xacce7100
152#define LNET_PROTO_PING_MAGIC 0x70696E67
153
154
155
156
157#define LNET_PROTO_MAGIC 0x45726963
158
159#define LNET_PROTO_TCP_VERSION_MAJOR 1
160#define LNET_PROTO_TCP_VERSION_MINOR 0
161
162
163typedef struct {
164 __u32 acr_magic;
165 __u32 acr_version;
166 __u64 acr_nid;
167} WIRE_ATTR lnet_acceptor_connreq_t;
168
169#define LNET_PROTO_ACCEPTOR_VERSION 1
170
171
172struct lnet_libmd;
173
174typedef struct lnet_msg {
175 struct list_head msg_activelist;
176 struct list_head msg_list;
177
178 lnet_process_id_t msg_target;
179
180 lnet_nid_t msg_from;
181 __u32 msg_type;
182
183
184 unsigned int msg_tx_committed:1;
185
186 unsigned int msg_tx_cpt:15;
187
188 unsigned int msg_rx_committed:1;
189
190 unsigned int msg_rx_cpt:15;
191
192 unsigned int msg_tx_delayed:1;
193
194 unsigned int msg_rx_delayed:1;
195
196 unsigned int msg_rx_ready_delay:1;
197
198 unsigned int msg_vmflush:1;
199 unsigned int msg_target_is_router:1;
200 unsigned int msg_routing:1;
201 unsigned int msg_ack:1;
202 unsigned int msg_sending:1;
203 unsigned int msg_receiving:1;
204 unsigned int msg_txcredit:1;
205 unsigned int msg_peertxcredit:1;
206 unsigned int msg_rtrcredit:1;
207 unsigned int msg_peerrtrcredit:1;
208 unsigned int msg_onactivelist:1;
209
210 struct lnet_peer *msg_txpeer;
211 struct lnet_peer *msg_rxpeer;
212
213 void *msg_private;
214 struct lnet_libmd *msg_md;
215
216 unsigned int msg_len;
217 unsigned int msg_wanted;
218 unsigned int msg_offset;
219 unsigned int msg_niov;
220 struct kvec *msg_iov;
221 lnet_kiov_t *msg_kiov;
222
223 lnet_event_t msg_ev;
224 lnet_hdr_t msg_hdr;
225} lnet_msg_t;
226
227typedef struct lnet_libhandle {
228 struct list_head lh_hash_chain;
229 __u64 lh_cookie;
230} lnet_libhandle_t;
231
232#define lh_entry(ptr, type, member) \
233 ((type *)((char *)(ptr)-(char *)(&((type *)0)->member)))
234
235typedef struct lnet_eq {
236 struct list_head eq_list;
237 lnet_libhandle_t eq_lh;
238 lnet_seq_t eq_enq_seq;
239 lnet_seq_t eq_deq_seq;
240 unsigned int eq_size;
241 lnet_eq_handler_t eq_callback;
242 lnet_event_t *eq_events;
243 int **eq_refs;
244} lnet_eq_t;
245
246typedef struct lnet_me {
247 struct list_head me_list;
248 lnet_libhandle_t me_lh;
249 lnet_process_id_t me_match_id;
250 unsigned int me_portal;
251 unsigned int me_pos;
252 __u64 me_match_bits;
253 __u64 me_ignore_bits;
254 lnet_unlink_t me_unlink;
255 struct lnet_libmd *me_md;
256} lnet_me_t;
257
258typedef struct lnet_libmd {
259 struct list_head md_list;
260 lnet_libhandle_t md_lh;
261 lnet_me_t *md_me;
262 char *md_start;
263 unsigned int md_offset;
264 unsigned int md_length;
265 unsigned int md_max_size;
266 int md_threshold;
267 int md_refcount;
268 unsigned int md_options;
269 unsigned int md_flags;
270 void *md_user_ptr;
271 lnet_eq_t *md_eq;
272 unsigned int md_niov;
273 union {
274 struct kvec iov[LNET_MAX_IOV];
275 lnet_kiov_t kiov[LNET_MAX_IOV];
276 } md_iov;
277} lnet_libmd_t;
278
279#define LNET_MD_FLAG_ZOMBIE (1 << 0)
280#define LNET_MD_FLAG_AUTO_UNLINK (1 << 1)
281#define LNET_MD_FLAG_ABORTED (1 << 2)
282
283#ifdef LNET_USE_LIB_FREELIST
284typedef struct {
285 void *fl_objs;
286 int fl_nobjs;
287 int fl_objsize;
288 struct list_head fl_list;
289} lnet_freelist_t;
290
291typedef struct {
292 struct list_head fo_list;
293 void *fo_contents;
294} lnet_freeobj_t;
295#endif
296
297typedef struct {
298
299 struct list_head tp_list;
300 lnet_nid_t tp_nid;
301 unsigned int tp_threshold;
302} lnet_test_peer_t;
303
304#define LNET_COOKIE_TYPE_MD 1
305#define LNET_COOKIE_TYPE_ME 2
306#define LNET_COOKIE_TYPE_EQ 3
307#define LNET_COOKIE_TYPE_BITS 2
308#define LNET_COOKIE_MASK ((1ULL << LNET_COOKIE_TYPE_BITS) - 1ULL)
309
310struct lnet_ni;
311
312typedef struct lnet_lnd {
313
314 struct list_head lnd_list;
315 int lnd_refcount;
316
317
318 unsigned int lnd_type;
319
320 int (*lnd_startup)(struct lnet_ni *ni);
321 void (*lnd_shutdown)(struct lnet_ni *ni);
322 int (*lnd_ctl)(struct lnet_ni *ni, unsigned int cmd, void *arg);
323
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336
337
338
339
340 int (*lnd_send)(struct lnet_ni *ni, void *private, lnet_msg_t *msg);
341
342
343
344
345
346
347 int (*lnd_recv)(struct lnet_ni *ni, void *private, lnet_msg_t *msg,
348 int delayed, unsigned int niov,
349 struct kvec *iov, lnet_kiov_t *kiov,
350 unsigned int offset, unsigned int mlen, unsigned int rlen);
351
352
353
354
355
356
357
358 int (*lnd_eager_recv)(struct lnet_ni *ni, void *private, lnet_msg_t *msg,
359 void **new_privatep);
360
361
362 void (*lnd_notify)(struct lnet_ni *ni, lnet_nid_t peer, int alive);
363
364
365 void (*lnd_query)(struct lnet_ni *ni, lnet_nid_t peer, unsigned long *when);
366
367
368 int (*lnd_accept)(struct lnet_ni *ni, struct socket *sock);
369
370} lnd_t;
371
372#define LNET_NI_STATUS_UP 0x15aac0de
373#define LNET_NI_STATUS_DOWN 0xdeadface
374#define LNET_NI_STATUS_INVALID 0x00000000
375typedef struct {
376 lnet_nid_t ns_nid;
377 __u32 ns_status;
378 __u32 ns_unused;
379} WIRE_ATTR lnet_ni_status_t;
380
381struct lnet_tx_queue {
382 int tq_credits;
383 int tq_credits_min;
384 int tq_credits_max;
385 struct list_head tq_delayed;
386};
387
388#define LNET_MAX_INTERFACES 16
389
390typedef struct lnet_ni {
391 spinlock_t ni_lock;
392 struct list_head ni_list;
393 struct list_head ni_cptlist;
394 int ni_maxtxcredits;
395
396 int ni_peertxcredits;
397
398 int ni_peerrtrcredits;
399
400 int ni_peertimeout;
401 int ni_ncpts;
402 __u32 *ni_cpts;
403 lnet_nid_t ni_nid;
404 void *ni_data;
405 lnd_t *ni_lnd;
406 struct lnet_tx_queue **ni_tx_queues;
407 int **ni_refs;
408 long ni_last_alive;
409 lnet_ni_status_t *ni_status;
410
411 char *ni_interfaces[LNET_MAX_INTERFACES];
412} lnet_ni_t;
413
414#define LNET_PROTO_PING_MATCHBITS 0x8000000000000000LL
415
416
417
418#define LNET_PING_FEAT_INVAL (0)
419#define LNET_PING_FEAT_BASE (1 << 0)
420#define LNET_PING_FEAT_NI_STATUS (1 << 1)
421
422#define LNET_PING_FEAT_MASK (LNET_PING_FEAT_BASE | \
423 LNET_PING_FEAT_NI_STATUS)
424
425typedef struct {
426 __u32 pi_magic;
427 __u32 pi_features;
428 lnet_pid_t pi_pid;
429 __u32 pi_nnis;
430 lnet_ni_status_t pi_ni[0];
431} WIRE_ATTR lnet_ping_info_t;
432
433
434#define LNET_MAX_RTR_NIS 16
435#define LNET_PINGINFO_SIZE offsetof(lnet_ping_info_t, pi_ni[LNET_MAX_RTR_NIS])
436typedef struct {
437
438 struct list_head rcd_list;
439 lnet_handle_md_t rcd_mdh;
440 struct lnet_peer *rcd_gateway;
441 lnet_ping_info_t *rcd_pinginfo;
442} lnet_rc_data_t;
443
444typedef struct lnet_peer {
445 struct list_head lp_hashlist;
446 struct list_head lp_txq;
447 struct list_head lp_rtrq;
448 struct list_head lp_rtr_list;
449 int lp_txcredits;
450 int lp_mintxcredits;
451 int lp_rtrcredits;
452 int lp_minrtrcredits;
453 unsigned int lp_alive:1;
454 unsigned int lp_notify:1;
455 unsigned int lp_notifylnd:1;
456 unsigned int lp_notifying:1;
457 unsigned int lp_ping_notsent;
458 int lp_alive_count;
459 long lp_txqnob;
460 unsigned long lp_timestamp;
461 unsigned long lp_ping_timestamp;
462 unsigned long lp_ping_deadline;
463 unsigned long lp_last_alive;
464 unsigned long lp_last_query;
465 lnet_ni_t *lp_ni;
466 lnet_nid_t lp_nid;
467 int lp_refcount;
468 int lp_cpt;
469
470 int lp_rtr_refcount;
471
472 unsigned int lp_ping_feats;
473 struct list_head lp_routes;
474 lnet_rc_data_t *lp_rcd;
475} lnet_peer_t;
476
477
478#define LNET_PEER_HASH_BITS 9
479#define LNET_PEER_HASH_SIZE (1 << LNET_PEER_HASH_BITS)
480
481
482struct lnet_peer_table {
483 int pt_version;
484 int pt_number;
485 struct list_head pt_deathrow;
486 struct list_head *pt_hash;
487};
488
489
490
491#define lnet_peer_aliveness_enabled(lp) (the_lnet.ln_routing != 0 && \
492 (lp)->lp_ni->ni_peertimeout > 0)
493
494typedef struct {
495 struct list_head lr_list;
496 struct list_head lr_gwlist;
497 lnet_peer_t *lr_gateway;
498 __u32 lr_net;
499 int lr_seq;
500 unsigned int lr_downis;
501 unsigned int lr_hops;
502 unsigned int lr_priority;
503} lnet_route_t;
504
505#define LNET_REMOTE_NETS_HASH_DEFAULT (1U << 7)
506#define LNET_REMOTE_NETS_HASH_MAX (1U << 16)
507#define LNET_REMOTE_NETS_HASH_SIZE (1 << the_lnet.ln_remote_nets_hbits)
508
509typedef struct {
510 struct list_head lrn_list;
511 struct list_head lrn_routes;
512 __u32 lrn_net;
513} lnet_remotenet_t;
514
515typedef struct {
516 struct list_head rbp_bufs;
517 struct list_head rbp_msgs;
518 int rbp_npages;
519 int rbp_nbuffers;
520 int rbp_credits;
521 int rbp_mincredits;
522} lnet_rtrbufpool_t;
523
524typedef struct {
525 struct list_head rb_list;
526 lnet_rtrbufpool_t *rb_pool;
527 lnet_kiov_t rb_kiov[0];
528} lnet_rtrbuf_t;
529
530typedef struct {
531 __u32 msgs_alloc;
532 __u32 msgs_max;
533 __u32 errors;
534 __u32 send_count;
535 __u32 recv_count;
536 __u32 route_count;
537 __u32 drop_count;
538 __u64 send_length;
539 __u64 recv_length;
540 __u64 route_length;
541 __u64 drop_length;
542} WIRE_ATTR lnet_counters_t;
543
544#define LNET_PEER_HASHSIZE 503
545
546#define LNET_NRBPOOLS 3
547
548enum {
549
550 LNET_MATCHMD_NONE = (1 << 0),
551
552 LNET_MATCHMD_OK = (1 << 1),
553
554 LNET_MATCHMD_DROP = (1 << 2),
555
556 LNET_MATCHMD_EXHAUSTED = (1 << 3),
557
558 LNET_MATCHMD_FINISH = (LNET_MATCHMD_OK | LNET_MATCHMD_DROP),
559};
560
561
562#define LNET_PTL_LAZY (1 << 0)
563#define LNET_PTL_MATCH_UNIQUE (1 << 1)
564#define LNET_PTL_MATCH_WILDCARD (1 << 2)
565
566
567struct lnet_match_info {
568 __u64 mi_mbits;
569 lnet_process_id_t mi_id;
570 unsigned int mi_opc;
571 unsigned int mi_portal;
572 unsigned int mi_rlength;
573 unsigned int mi_roffset;
574};
575
576
577#define LNET_MT_HASH_BITS 8
578#define LNET_MT_HASH_SIZE (1 << LNET_MT_HASH_BITS)
579#define LNET_MT_HASH_MASK (LNET_MT_HASH_SIZE - 1)
580
581
582#define LNET_MT_HASH_IGNORE LNET_MT_HASH_SIZE
583
584
585
586#define LNET_MT_BITS_U64 6
587#define LNET_MT_EXHAUSTED_BITS (LNET_MT_HASH_BITS - LNET_MT_BITS_U64)
588#define LNET_MT_EXHAUSTED_BMAP ((1 << LNET_MT_EXHAUSTED_BITS) + 1)
589
590
591struct lnet_match_table {
592
593 unsigned int mt_cpt;
594 unsigned int mt_portal;
595
596
597 unsigned int mt_enabled;
598
599 __u64 mt_exhausted[LNET_MT_EXHAUSTED_BMAP];
600 struct list_head *mt_mhash;
601};
602
603
604
605#define LNET_PTL_ROTOR_OFF 0
606
607#define LNET_PTL_ROTOR_ON 1
608
609#define LNET_PTL_ROTOR_RR_RT 2
610
611#define LNET_PTL_ROTOR_HASH_RT 3
612
613typedef struct lnet_portal {
614 spinlock_t ptl_lock;
615 unsigned int ptl_index;
616
617 unsigned int ptl_options;
618
619 struct list_head ptl_msg_stealing;
620
621 struct list_head ptl_msg_delayed;
622
623 struct lnet_match_table **ptl_mtables;
624
625 unsigned int ptl_rotor;
626
627 int ptl_mt_nmaps;
628
629 int ptl_mt_maps[0];
630} lnet_portal_t;
631
632#define LNET_LH_HASH_BITS 12
633#define LNET_LH_HASH_SIZE (1ULL << LNET_LH_HASH_BITS)
634#define LNET_LH_HASH_MASK (LNET_LH_HASH_SIZE - 1)
635
636
637struct lnet_res_container {
638 unsigned int rec_type;
639 __u64 rec_lh_cookie;
640 struct list_head rec_active;
641 struct list_head *rec_lh_hash;
642#ifdef LNET_USE_LIB_FREELIST
643 lnet_freelist_t rec_freelist;
644#endif
645};
646
647
648struct lnet_msg_container {
649 int msc_init;
650
651 int msc_nfinalizers;
652
653 struct list_head msc_finalizing;
654 struct list_head msc_active;
655
656 void **msc_finalizers;
657#ifdef LNET_USE_LIB_FREELIST
658 lnet_freelist_t msc_freelist;
659#endif
660};
661
662
663#define LNET_RC_STATE_SHUTDOWN 0
664#define LNET_RC_STATE_RUNNING 1
665#define LNET_RC_STATE_STOPPING 2
666
667typedef struct {
668
669 struct cfs_cpt_table *ln_cpt_table;
670
671 unsigned int ln_cpt_number;
672 unsigned int ln_cpt_bits;
673
674
675 struct cfs_percpt_lock *ln_res_lock;
676
677 int ln_nportals;
678
679 lnet_portal_t **ln_portals;
680
681 struct lnet_res_container **ln_me_containers;
682
683 struct lnet_res_container **ln_md_containers;
684
685
686 struct lnet_res_container ln_eq_container;
687 wait_queue_head_t ln_eq_waitq;
688 spinlock_t ln_eq_wait_lock;
689 unsigned int ln_remote_nets_hbits;
690
691
692 struct cfs_percpt_lock *ln_net_lock;
693
694 struct lnet_msg_container **ln_msg_containers;
695 lnet_counters_t **ln_counters;
696 struct lnet_peer_table **ln_peer_tables;
697
698 struct list_head ln_test_peers;
699
700 struct list_head ln_nis;
701
702 struct list_head ln_nis_cpt;
703
704 struct list_head ln_nis_zombie;
705 lnet_ni_t *ln_loni;
706
707 lnet_ni_t *ln_eq_waitni;
708
709
710 struct list_head *ln_remote_nets_hash;
711
712 __u64 ln_remote_nets_version;
713
714 struct list_head ln_routers;
715
716 __u64 ln_routers_version;
717
718 lnet_rtrbufpool_t **ln_rtrpools;
719
720 lnet_handle_md_t ln_ping_target_md;
721 lnet_handle_eq_t ln_ping_target_eq;
722 lnet_ping_info_t *ln_ping_info;
723
724
725 int ln_rc_state;
726
727 lnet_handle_eq_t ln_rc_eqh;
728
729 struct list_head ln_rcd_deathrow;
730
731 struct list_head ln_rcd_zombie;
732
733 struct semaphore ln_rc_signal;
734
735 struct mutex ln_api_mutex;
736 struct mutex ln_lnd_mutex;
737 int ln_init;
738
739 int ln_niinit_self;
740
741 int ln_refcount;
742
743 int ln_shutdown;
744
745 int ln_routing;
746 lnet_pid_t ln_pid;
747
748 __u64 ln_interface_cookie;
749
750 struct list_head ln_lnds;
751
752
753 char *ln_network_tokens;
754 int ln_network_tokens_nob;
755
756 int ln_testprotocompat;
757
758} lnet_t;
759
760#endif
761