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[mirror_ubuntu-eoan-kernel.git] / drivers / net / fddi / skfp / smt.c
1 /******************************************************************************
2 *
3 * (C)Copyright 1998,1999 SysKonnect,
4 * a business unit of Schneider & Koch & Co. Datensysteme GmbH.
5 *
6 * See the file "skfddi.c" for further information.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * The information in this file is provided "AS IS" without warranty.
14 *
15 ******************************************************************************/
16
17 #include "h/types.h"
18 #include "h/fddi.h"
19 #include "h/smc.h"
20 #include "h/smt_p.h"
21 #include <linux/bitrev.h>
22 #include <linux/kernel.h>
23
24 #define KERNEL
25 #include "h/smtstate.h"
26
27 #ifndef lint
28 static const char ID_sccs[] = "@(#)smt.c 2.43 98/11/23 (C) SK " ;
29 #endif
30
31 /*
32 * FC in SMbuf
33 */
34 #define m_fc(mb) ((mb)->sm_data[0])
35
36 #define SMT_TID_MAGIC 0x1f0a7b3c
37
38 static const char *const smt_type_name[] = {
39 "SMT_00??", "SMT_INFO", "SMT_02??", "SMT_03??",
40 "SMT_04??", "SMT_05??", "SMT_06??", "SMT_07??",
41 "SMT_08??", "SMT_09??", "SMT_0A??", "SMT_0B??",
42 "SMT_0C??", "SMT_0D??", "SMT_0E??", "SMT_NSA"
43 } ;
44
45 static const char *const smt_class_name[] = {
46 "UNKNOWN","NIF","SIF_CONFIG","SIF_OPER","ECF","RAF","RDF",
47 "SRF","PMF_GET","PMF_SET","ESF"
48 } ;
49
50 #define LAST_CLASS (SMT_PMF_SET)
51
52 static const struct fddi_addr SMT_Unknown = {
53 { 0,0,0x1f,0,0,0 }
54 } ;
55
56 /*
57 * function prototypes
58 */
59 #ifdef LITTLE_ENDIAN
60 static int smt_swap_short(u_short s);
61 #endif
62 static int mac_index(struct s_smc *smc, int mac);
63 static int phy_index(struct s_smc *smc, int phy);
64 static int mac_con_resource_index(struct s_smc *smc, int mac);
65 static int phy_con_resource_index(struct s_smc *smc, int phy);
66 static void smt_send_rdf(struct s_smc *smc, SMbuf *rej, int fc, int reason,
67 int local);
68 static void smt_send_nif(struct s_smc *smc, const struct fddi_addr *dest,
69 int fc, u_long tid, int type, int local);
70 static void smt_send_ecf(struct s_smc *smc, struct fddi_addr *dest, int fc,
71 u_long tid, int type, int len);
72 static void smt_echo_test(struct s_smc *smc, int dna);
73 static void smt_send_sif_config(struct s_smc *smc, struct fddi_addr *dest,
74 u_long tid, int local);
75 static void smt_send_sif_operation(struct s_smc *smc, struct fddi_addr *dest,
76 u_long tid, int local);
77 #ifdef LITTLE_ENDIAN
78 static void smt_string_swap(char *data, const char *format, int len);
79 #endif
80 static void smt_add_frame_len(SMbuf *mb, int len);
81 static void smt_fill_una(struct s_smc *smc, struct smt_p_una *una);
82 static void smt_fill_sde(struct s_smc *smc, struct smt_p_sde *sde);
83 static void smt_fill_state(struct s_smc *smc, struct smt_p_state *state);
84 static void smt_fill_timestamp(struct s_smc *smc, struct smt_p_timestamp *ts);
85 static void smt_fill_policy(struct s_smc *smc, struct smt_p_policy *policy);
86 static void smt_fill_latency(struct s_smc *smc, struct smt_p_latency *latency);
87 static void smt_fill_neighbor(struct s_smc *smc, struct smt_p_neighbor *neighbor);
88 static int smt_fill_path(struct s_smc *smc, struct smt_p_path *path);
89 static void smt_fill_mac_status(struct s_smc *smc, struct smt_p_mac_status *st);
90 static void smt_fill_lem(struct s_smc *smc, struct smt_p_lem *lem, int phy);
91 static void smt_fill_version(struct s_smc *smc, struct smt_p_version *vers);
92 static void smt_fill_fsc(struct s_smc *smc, struct smt_p_fsc *fsc);
93 static void smt_fill_mac_counter(struct s_smc *smc, struct smt_p_mac_counter *mc);
94 static void smt_fill_mac_fnc(struct s_smc *smc, struct smt_p_mac_fnc *fnc);
95 static void smt_fill_manufacturer(struct s_smc *smc,
96 struct smp_p_manufacturer *man);
97 static void smt_fill_user(struct s_smc *smc, struct smp_p_user *user);
98 static void smt_fill_setcount(struct s_smc *smc, struct smt_p_setcount *setcount);
99 static void smt_fill_echo(struct s_smc *smc, struct smt_p_echo *echo, u_long seed,
100 int len);
101
102 static void smt_clear_una_dna(struct s_smc *smc);
103 static void smt_clear_old_una_dna(struct s_smc *smc);
104 #ifdef CONCENTRATOR
105 static int entity_to_index(void);
106 #endif
107 static void update_dac(struct s_smc *smc, int report);
108 static int div_ratio(u_long upper, u_long lower);
109 #ifdef USE_CAN_ADDR
110 static void hwm_conv_can(struct s_smc *smc, char *data, int len);
111 #else
112 #define hwm_conv_can(smc,data,len)
113 #endif
114
115
116 static inline int is_my_addr(const struct s_smc *smc,
117 const struct fddi_addr *addr)
118 {
119 return(*(short *)(&addr->a[0]) ==
120 *(short *)(&smc->mib.m[MAC0].fddiMACSMTAddress.a[0])
121 && *(short *)(&addr->a[2]) ==
122 *(short *)(&smc->mib.m[MAC0].fddiMACSMTAddress.a[2])
123 && *(short *)(&addr->a[4]) ==
124 *(short *)(&smc->mib.m[MAC0].fddiMACSMTAddress.a[4])) ;
125 }
126
127 static inline int is_broadcast(const struct fddi_addr *addr)
128 {
129 return *(u_short *)(&addr->a[0]) == 0xffff &&
130 *(u_short *)(&addr->a[2]) == 0xffff &&
131 *(u_short *)(&addr->a[4]) == 0xffff;
132 }
133
134 static inline int is_individual(const struct fddi_addr *addr)
135 {
136 return !(addr->a[0] & GROUP_ADDR);
137 }
138
139 static inline int is_equal(const struct fddi_addr *addr1,
140 const struct fddi_addr *addr2)
141 {
142 return *(u_short *)(&addr1->a[0]) == *(u_short *)(&addr2->a[0]) &&
143 *(u_short *)(&addr1->a[2]) == *(u_short *)(&addr2->a[2]) &&
144 *(u_short *)(&addr1->a[4]) == *(u_short *)(&addr2->a[4]);
145 }
146
147 /*
148 * list of mandatory paras in frames
149 */
150 static const u_short plist_nif[] = { SMT_P_UNA,SMT_P_SDE,SMT_P_STATE,0 } ;
151
152 /*
153 * init SMT agent
154 */
155 void smt_agent_init(struct s_smc *smc)
156 {
157 int i ;
158
159 /*
160 * get MAC address
161 */
162 smc->mib.m[MAC0].fddiMACSMTAddress = smc->hw.fddi_home_addr ;
163
164 /*
165 * get OUI address from driver (bia == built-in-address)
166 */
167 smc->mib.fddiSMTStationId.sid_oem[0] = 0 ;
168 smc->mib.fddiSMTStationId.sid_oem[1] = 0 ;
169 driver_get_bia(smc,&smc->mib.fddiSMTStationId.sid_node) ;
170 for (i = 0 ; i < 6 ; i ++) {
171 smc->mib.fddiSMTStationId.sid_node.a[i] =
172 bitrev8(smc->mib.fddiSMTStationId.sid_node.a[i]);
173 }
174 smc->mib.fddiSMTManufacturerData[0] =
175 smc->mib.fddiSMTStationId.sid_node.a[0] ;
176 smc->mib.fddiSMTManufacturerData[1] =
177 smc->mib.fddiSMTStationId.sid_node.a[1] ;
178 smc->mib.fddiSMTManufacturerData[2] =
179 smc->mib.fddiSMTStationId.sid_node.a[2] ;
180 smc->sm.smt_tid = 0 ;
181 smc->mib.m[MAC0].fddiMACDupAddressTest = DA_NONE ;
182 smc->mib.m[MAC0].fddiMACUNDA_Flag = FALSE ;
183 #ifndef SLIM_SMT
184 smt_clear_una_dna(smc) ;
185 smt_clear_old_una_dna(smc) ;
186 #endif
187 for (i = 0 ; i < SMT_MAX_TEST ; i++)
188 smc->sm.pend[i] = 0 ;
189 smc->sm.please_reconnect = 0 ;
190 smc->sm.uniq_ticks = 0 ;
191 }
192
193 /*
194 * SMT task
195 * forever
196 * delay 30 seconds
197 * send NIF
198 * check tvu & tvd
199 * end
200 */
201 void smt_agent_task(struct s_smc *smc)
202 {
203 smt_timer_start(smc,&smc->sm.smt_timer, (u_long)1000000L,
204 EV_TOKEN(EVENT_SMT,SM_TIMER)) ;
205 DB_SMT("SMT agent task");
206 }
207
208 #ifndef SMT_REAL_TOKEN_CT
209 void smt_emulate_token_ct(struct s_smc *smc, int mac_index)
210 {
211 u_long count;
212 u_long time;
213
214
215 time = smt_get_time();
216 count = ((time - smc->sm.last_tok_time[mac_index]) *
217 100)/TICKS_PER_SECOND;
218
219 /*
220 * Only when ring is up we will have a token count. The
221 * flag is unfortunately a single instance value. This
222 * doesn't matter now, because we currently have only
223 * one MAC instance.
224 */
225 if (smc->hw.mac_ring_is_up){
226 smc->mib.m[mac_index].fddiMACToken_Ct += count;
227 }
228
229 /* Remember current time */
230 smc->sm.last_tok_time[mac_index] = time;
231
232 }
233 #endif
234
235 /*ARGSUSED1*/
236 void smt_event(struct s_smc *smc, int event)
237 {
238 u_long time ;
239 #ifndef SMT_REAL_TOKEN_CT
240 int i ;
241 #endif
242
243
244 if (smc->sm.please_reconnect) {
245 smc->sm.please_reconnect -- ;
246 if (smc->sm.please_reconnect == 0) {
247 /* Counted down */
248 queue_event(smc,EVENT_ECM,EC_CONNECT) ;
249 }
250 }
251
252 if (event == SM_FAST)
253 return ;
254
255 /*
256 * timer for periodic cleanup in driver
257 * reset and start the watchdog (FM2)
258 * ESS timer
259 * SBA timer
260 */
261 smt_timer_poll(smc) ;
262 smt_start_watchdog(smc) ;
263 #ifndef SLIM_SMT
264 #ifndef BOOT
265 #ifdef ESS
266 ess_timer_poll(smc) ;
267 #endif
268 #endif
269 #ifdef SBA
270 sba_timer_poll(smc) ;
271 #endif
272
273 smt_srf_event(smc,0,0,0) ;
274
275 #endif /* no SLIM_SMT */
276
277 time = smt_get_time() ;
278
279 if (time - smc->sm.smt_last_lem >= TICKS_PER_SECOND*8) {
280 /*
281 * Use 8 sec. for the time intervall, it simplifies the
282 * LER estimation.
283 */
284 struct fddi_mib_m *mib ;
285 u_long upper ;
286 u_long lower ;
287 int cond ;
288 int port;
289 struct s_phy *phy ;
290 /*
291 * calculate LEM bit error rate
292 */
293 sm_lem_evaluate(smc) ;
294 smc->sm.smt_last_lem = time ;
295
296 /*
297 * check conditions
298 */
299 #ifndef SLIM_SMT
300 mac_update_counter(smc) ;
301 mib = smc->mib.m ;
302 upper =
303 (mib->fddiMACLost_Ct - mib->fddiMACOld_Lost_Ct) +
304 (mib->fddiMACError_Ct - mib->fddiMACOld_Error_Ct) ;
305 lower =
306 (mib->fddiMACFrame_Ct - mib->fddiMACOld_Frame_Ct) +
307 (mib->fddiMACLost_Ct - mib->fddiMACOld_Lost_Ct) ;
308 mib->fddiMACFrameErrorRatio = div_ratio(upper,lower) ;
309
310 cond =
311 ((!mib->fddiMACFrameErrorThreshold &&
312 mib->fddiMACError_Ct != mib->fddiMACOld_Error_Ct) ||
313 (mib->fddiMACFrameErrorRatio >
314 mib->fddiMACFrameErrorThreshold)) ;
315
316 if (cond != mib->fddiMACFrameErrorFlag)
317 smt_srf_event(smc,SMT_COND_MAC_FRAME_ERROR,
318 INDEX_MAC,cond) ;
319
320 upper =
321 (mib->fddiMACNotCopied_Ct - mib->fddiMACOld_NotCopied_Ct) ;
322 lower =
323 upper +
324 (mib->fddiMACCopied_Ct - mib->fddiMACOld_Copied_Ct) ;
325 mib->fddiMACNotCopiedRatio = div_ratio(upper,lower) ;
326
327 cond =
328 ((!mib->fddiMACNotCopiedThreshold &&
329 mib->fddiMACNotCopied_Ct !=
330 mib->fddiMACOld_NotCopied_Ct)||
331 (mib->fddiMACNotCopiedRatio >
332 mib->fddiMACNotCopiedThreshold)) ;
333
334 if (cond != mib->fddiMACNotCopiedFlag)
335 smt_srf_event(smc,SMT_COND_MAC_NOT_COPIED,
336 INDEX_MAC,cond) ;
337
338 /*
339 * set old values
340 */
341 mib->fddiMACOld_Frame_Ct = mib->fddiMACFrame_Ct ;
342 mib->fddiMACOld_Copied_Ct = mib->fddiMACCopied_Ct ;
343 mib->fddiMACOld_Error_Ct = mib->fddiMACError_Ct ;
344 mib->fddiMACOld_Lost_Ct = mib->fddiMACLost_Ct ;
345 mib->fddiMACOld_NotCopied_Ct = mib->fddiMACNotCopied_Ct ;
346
347 /*
348 * Check port EBError Condition
349 */
350 for (port = 0; port < NUMPHYS; port ++) {
351 phy = &smc->y[port] ;
352
353 if (!phy->mib->fddiPORTHardwarePresent) {
354 continue;
355 }
356
357 cond = (phy->mib->fddiPORTEBError_Ct -
358 phy->mib->fddiPORTOldEBError_Ct > 5) ;
359
360 /* If ratio is more than 5 in 8 seconds
361 * Set the condition.
362 */
363 smt_srf_event(smc,SMT_COND_PORT_EB_ERROR,
364 (int) (INDEX_PORT+ phy->np) ,cond) ;
365
366 /*
367 * set old values
368 */
369 phy->mib->fddiPORTOldEBError_Ct =
370 phy->mib->fddiPORTEBError_Ct ;
371 }
372
373 #endif /* no SLIM_SMT */
374 }
375
376 #ifndef SLIM_SMT
377
378 if (time - smc->sm.smt_last_notify >= (u_long)
379 (smc->mib.fddiSMTTT_Notify * TICKS_PER_SECOND) ) {
380 /*
381 * we can either send an announcement or a request
382 * a request will trigger a reply so that we can update
383 * our dna
384 * note: same tid must be used until reply is received
385 */
386 if (!smc->sm.pend[SMT_TID_NIF])
387 smc->sm.pend[SMT_TID_NIF] = smt_get_tid(smc) ;
388 smt_send_nif(smc,&fddi_broadcast, FC_SMT_NSA,
389 smc->sm.pend[SMT_TID_NIF], SMT_REQUEST,0) ;
390 smc->sm.smt_last_notify = time ;
391 }
392
393 /*
394 * check timer
395 */
396 if (smc->sm.smt_tvu &&
397 time - smc->sm.smt_tvu > 228*TICKS_PER_SECOND) {
398 DB_SMT("SMT : UNA expired");
399 smc->sm.smt_tvu = 0 ;
400
401 if (!is_equal(&smc->mib.m[MAC0].fddiMACUpstreamNbr,
402 &SMT_Unknown)){
403 /* Do not update unknown address */
404 smc->mib.m[MAC0].fddiMACOldUpstreamNbr=
405 smc->mib.m[MAC0].fddiMACUpstreamNbr ;
406 }
407 smc->mib.m[MAC0].fddiMACUpstreamNbr = SMT_Unknown ;
408 smc->mib.m[MAC0].fddiMACUNDA_Flag = FALSE ;
409 /*
410 * Make sure the fddiMACUNDA_Flag = FALSE is
411 * included in the SRF so we don't generate
412 * a separate SRF for the deassertion of this
413 * condition
414 */
415 update_dac(smc,0) ;
416 smt_srf_event(smc, SMT_EVENT_MAC_NEIGHBOR_CHANGE,
417 INDEX_MAC,0) ;
418 }
419 if (smc->sm.smt_tvd &&
420 time - smc->sm.smt_tvd > 228*TICKS_PER_SECOND) {
421 DB_SMT("SMT : DNA expired");
422 smc->sm.smt_tvd = 0 ;
423 if (!is_equal(&smc->mib.m[MAC0].fddiMACDownstreamNbr,
424 &SMT_Unknown)){
425 /* Do not update unknown address */
426 smc->mib.m[MAC0].fddiMACOldDownstreamNbr=
427 smc->mib.m[MAC0].fddiMACDownstreamNbr ;
428 }
429 smc->mib.m[MAC0].fddiMACDownstreamNbr = SMT_Unknown ;
430 smt_srf_event(smc, SMT_EVENT_MAC_NEIGHBOR_CHANGE,
431 INDEX_MAC,0) ;
432 }
433
434 #endif /* no SLIM_SMT */
435
436 #ifndef SMT_REAL_TOKEN_CT
437 /*
438 * Token counter emulation section. If hardware supports the token
439 * count, the token counter will be updated in mac_update_counter.
440 */
441 for (i = MAC0; i < NUMMACS; i++ ){
442 if (time - smc->sm.last_tok_time[i] > 2*TICKS_PER_SECOND ){
443 smt_emulate_token_ct( smc, i );
444 }
445 }
446 #endif
447
448 smt_timer_start(smc,&smc->sm.smt_timer, (u_long)1000000L,
449 EV_TOKEN(EVENT_SMT,SM_TIMER)) ;
450 }
451
452 static int div_ratio(u_long upper, u_long lower)
453 {
454 if ((upper<<16L) < upper)
455 upper = 0xffff0000L ;
456 else
457 upper <<= 16L ;
458 if (!lower)
459 return 0;
460 return (int)(upper/lower) ;
461 }
462
463 #ifndef SLIM_SMT
464
465 /*
466 * receive packet handler
467 */
468 void smt_received_pack(struct s_smc *smc, SMbuf *mb, int fs)
469 /* int fs; frame status */
470 {
471 struct smt_header *sm ;
472 int local ;
473
474 int illegal = 0 ;
475
476 switch (m_fc(mb)) {
477 case FC_SMT_INFO :
478 case FC_SMT_LAN_LOC :
479 case FC_SMT_LOC :
480 case FC_SMT_NSA :
481 break ;
482 default :
483 smt_free_mbuf(smc,mb) ;
484 return ;
485 }
486
487 smc->mib.m[MAC0].fddiMACSMTCopied_Ct++ ;
488 sm = smtod(mb,struct smt_header *) ;
489 local = ((fs & L_INDICATOR) != 0) ;
490 hwm_conv_can(smc,(char *)sm,12) ;
491
492 /* check destination address */
493 if (is_individual(&sm->smt_dest) && !is_my_addr(smc,&sm->smt_dest)) {
494 smt_free_mbuf(smc,mb) ;
495 return ;
496 }
497 #if 0 /* for DUP recognition, do NOT filter them */
498 /* ignore loop back packets */
499 if (is_my_addr(smc,&sm->smt_source) && !local) {
500 smt_free_mbuf(smc,mb) ;
501 return ;
502 }
503 #endif
504
505 smt_swap_para(sm,(int) mb->sm_len,1) ;
506 DB_SMT("SMT : received packet [%s] at 0x%p",
507 smt_type_name[m_fc(mb) & 0xf], sm);
508 DB_SMT("SMT : version %d, class %s",
509 sm->smt_version,
510 smt_class_name[sm->smt_class > LAST_CLASS ? 0 : sm->smt_class]);
511
512 #ifdef SBA
513 /*
514 * check if NSA frame
515 */
516 if (m_fc(mb) == FC_SMT_NSA && sm->smt_class == SMT_NIF &&
517 (sm->smt_type == SMT_ANNOUNCE || sm->smt_type == SMT_REQUEST)) {
518 smc->sba.sm = sm ;
519 sba(smc,NIF) ;
520 }
521 #endif
522
523 /*
524 * ignore any packet with NSA and A-indicator set
525 */
526 if ( (fs & A_INDICATOR) && m_fc(mb) == FC_SMT_NSA) {
527 DB_SMT("SMT : ignoring NSA with A-indicator set from %s",
528 addr_to_string(&sm->smt_source));
529 smt_free_mbuf(smc,mb) ;
530 return ;
531 }
532
533 /*
534 * ignore frames with illegal length
535 */
536 if (((sm->smt_class == SMT_ECF) && (sm->smt_len > SMT_MAX_ECHO_LEN)) ||
537 ((sm->smt_class != SMT_ECF) && (sm->smt_len > SMT_MAX_INFO_LEN))) {
538 smt_free_mbuf(smc,mb) ;
539 return ;
540 }
541
542 /*
543 * check SMT version
544 */
545 switch (sm->smt_class) {
546 case SMT_NIF :
547 case SMT_SIF_CONFIG :
548 case SMT_SIF_OPER :
549 case SMT_ECF :
550 if (sm->smt_version != SMT_VID)
551 illegal = 1;
552 break ;
553 default :
554 if (sm->smt_version != SMT_VID_2)
555 illegal = 1;
556 break ;
557 }
558 if (illegal) {
559 DB_SMT("SMT : version = %d, dest = %s",
560 sm->smt_version, addr_to_string(&sm->smt_source));
561 smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_VERSION,local) ;
562 smt_free_mbuf(smc,mb) ;
563 return ;
564 }
565 if ((sm->smt_len > mb->sm_len - sizeof(struct smt_header)) ||
566 ((sm->smt_len & 3) && (sm->smt_class != SMT_ECF))) {
567 DB_SMT("SMT: info length error, len = %d", sm->smt_len);
568 smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_LENGTH,local) ;
569 smt_free_mbuf(smc,mb) ;
570 return ;
571 }
572 switch (sm->smt_class) {
573 case SMT_NIF :
574 if (smt_check_para(smc,sm,plist_nif)) {
575 DB_SMT("SMT: NIF with para problem, ignoring");
576 break ;
577 }
578 switch (sm->smt_type) {
579 case SMT_ANNOUNCE :
580 case SMT_REQUEST :
581 if (!(fs & C_INDICATOR) && m_fc(mb) == FC_SMT_NSA
582 && is_broadcast(&sm->smt_dest)) {
583 struct smt_p_state *st ;
584
585 /* set my UNA */
586 if (!is_equal(
587 &smc->mib.m[MAC0].fddiMACUpstreamNbr,
588 &sm->smt_source)) {
589 DB_SMT("SMT : updated my UNA = %s",
590 addr_to_string(&sm->smt_source));
591 if (!is_equal(&smc->mib.m[MAC0].
592 fddiMACUpstreamNbr,&SMT_Unknown)){
593 /* Do not update unknown address */
594 smc->mib.m[MAC0].fddiMACOldUpstreamNbr=
595 smc->mib.m[MAC0].fddiMACUpstreamNbr ;
596 }
597
598 smc->mib.m[MAC0].fddiMACUpstreamNbr =
599 sm->smt_source ;
600 smt_srf_event(smc,
601 SMT_EVENT_MAC_NEIGHBOR_CHANGE,
602 INDEX_MAC,0) ;
603 smt_echo_test(smc,0) ;
604 }
605 smc->sm.smt_tvu = smt_get_time() ;
606 st = (struct smt_p_state *)
607 sm_to_para(smc,sm,SMT_P_STATE) ;
608 if (st) {
609 smc->mib.m[MAC0].fddiMACUNDA_Flag =
610 (st->st_dupl_addr & SMT_ST_MY_DUPA) ?
611 TRUE : FALSE ;
612 update_dac(smc,1) ;
613 }
614 }
615 if ((sm->smt_type == SMT_REQUEST) &&
616 is_individual(&sm->smt_source) &&
617 ((!(fs & A_INDICATOR) && m_fc(mb) == FC_SMT_NSA) ||
618 (m_fc(mb) != FC_SMT_NSA))) {
619 DB_SMT("SMT : replying to NIF request %s",
620 addr_to_string(&sm->smt_source));
621 smt_send_nif(smc,&sm->smt_source,
622 FC_SMT_INFO,
623 sm->smt_tid,
624 SMT_REPLY,local) ;
625 }
626 break ;
627 case SMT_REPLY :
628 DB_SMT("SMT : received NIF response from %s",
629 addr_to_string(&sm->smt_source));
630 if (fs & A_INDICATOR) {
631 smc->sm.pend[SMT_TID_NIF] = 0 ;
632 DB_SMT("SMT : duplicate address");
633 smc->mib.m[MAC0].fddiMACDupAddressTest =
634 DA_FAILED ;
635 smc->r.dup_addr_test = DA_FAILED ;
636 queue_event(smc,EVENT_RMT,RM_DUP_ADDR) ;
637 smc->mib.m[MAC0].fddiMACDA_Flag = TRUE ;
638 update_dac(smc,1) ;
639 break ;
640 }
641 if (sm->smt_tid == smc->sm.pend[SMT_TID_NIF]) {
642 smc->sm.pend[SMT_TID_NIF] = 0 ;
643 /* set my DNA */
644 if (!is_equal(
645 &smc->mib.m[MAC0].fddiMACDownstreamNbr,
646 &sm->smt_source)) {
647 DB_SMT("SMT : updated my DNA");
648 if (!is_equal(&smc->mib.m[MAC0].
649 fddiMACDownstreamNbr, &SMT_Unknown)){
650 /* Do not update unknown address */
651 smc->mib.m[MAC0].fddiMACOldDownstreamNbr =
652 smc->mib.m[MAC0].fddiMACDownstreamNbr ;
653 }
654
655 smc->mib.m[MAC0].fddiMACDownstreamNbr =
656 sm->smt_source ;
657 smt_srf_event(smc,
658 SMT_EVENT_MAC_NEIGHBOR_CHANGE,
659 INDEX_MAC,0) ;
660 smt_echo_test(smc,1) ;
661 }
662 smc->mib.m[MAC0].fddiMACDA_Flag = FALSE ;
663 update_dac(smc,1) ;
664 smc->sm.smt_tvd = smt_get_time() ;
665 smc->mib.m[MAC0].fddiMACDupAddressTest =
666 DA_PASSED ;
667 if (smc->r.dup_addr_test != DA_PASSED) {
668 smc->r.dup_addr_test = DA_PASSED ;
669 queue_event(smc,EVENT_RMT,RM_DUP_ADDR) ;
670 }
671 }
672 else if (sm->smt_tid ==
673 smc->sm.pend[SMT_TID_NIF_TEST]) {
674 DB_SMT("SMT : NIF test TID ok");
675 }
676 else {
677 DB_SMT("SMT : expected TID %lx, got %x",
678 smc->sm.pend[SMT_TID_NIF], sm->smt_tid);
679 }
680 break ;
681 default :
682 illegal = 2 ;
683 break ;
684 }
685 break ;
686 case SMT_SIF_CONFIG : /* station information */
687 if (sm->smt_type != SMT_REQUEST)
688 break ;
689 DB_SMT("SMT : replying to SIF Config request from %s",
690 addr_to_string(&sm->smt_source));
691 smt_send_sif_config(smc,&sm->smt_source,sm->smt_tid,local) ;
692 break ;
693 case SMT_SIF_OPER : /* station information */
694 if (sm->smt_type != SMT_REQUEST)
695 break ;
696 DB_SMT("SMT : replying to SIF Operation request from %s",
697 addr_to_string(&sm->smt_source));
698 smt_send_sif_operation(smc,&sm->smt_source,sm->smt_tid,local) ;
699 break ;
700 case SMT_ECF : /* echo frame */
701 switch (sm->smt_type) {
702 case SMT_REPLY :
703 smc->mib.priv.fddiPRIVECF_Reply_Rx++ ;
704 DB_SMT("SMT: received ECF reply from %s",
705 addr_to_string(&sm->smt_source));
706 if (sm_to_para(smc,sm,SMT_P_ECHODATA) == NULL) {
707 DB_SMT("SMT: ECHODATA missing");
708 break ;
709 }
710 if (sm->smt_tid == smc->sm.pend[SMT_TID_ECF]) {
711 DB_SMT("SMT : ECF test TID ok");
712 }
713 else if (sm->smt_tid == smc->sm.pend[SMT_TID_ECF_UNA]) {
714 DB_SMT("SMT : ECF test UNA ok");
715 }
716 else if (sm->smt_tid == smc->sm.pend[SMT_TID_ECF_DNA]) {
717 DB_SMT("SMT : ECF test DNA ok");
718 }
719 else {
720 DB_SMT("SMT : expected TID %lx, got %x",
721 smc->sm.pend[SMT_TID_ECF],
722 sm->smt_tid);
723 }
724 break ;
725 case SMT_REQUEST :
726 smc->mib.priv.fddiPRIVECF_Req_Rx++ ;
727 {
728 if (sm->smt_len && !sm_to_para(smc,sm,SMT_P_ECHODATA)) {
729 DB_SMT("SMT: ECF with para problem,sending RDF");
730 smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_LENGTH,
731 local) ;
732 break ;
733 }
734 DB_SMT("SMT - sending ECF reply to %s",
735 addr_to_string(&sm->smt_source));
736
737 /* set destination addr. & reply */
738 sm->smt_dest = sm->smt_source ;
739 sm->smt_type = SMT_REPLY ;
740 dump_smt(smc,sm,"ECF REPLY") ;
741 smc->mib.priv.fddiPRIVECF_Reply_Tx++ ;
742 smt_send_frame(smc,mb,FC_SMT_INFO,local) ;
743 return ; /* DON'T free mbuf */
744 }
745 default :
746 illegal = 1 ;
747 break ;
748 }
749 break ;
750 #ifndef BOOT
751 case SMT_RAF : /* resource allocation */
752 #ifdef ESS
753 DB_ESSN(2, "ESS: RAF frame received");
754 fs = ess_raf_received_pack(smc,mb,sm,fs) ;
755 #endif
756
757 #ifdef SBA
758 DB_SBAN(2,"SBA: RAF frame received\n",0,0) ;
759 sba_raf_received_pack(smc,sm,fs) ;
760 #endif
761 break ;
762 case SMT_RDF : /* request denied */
763 smc->mib.priv.fddiPRIVRDF_Rx++ ;
764 break ;
765 case SMT_ESF : /* extended service - not supported */
766 if (sm->smt_type == SMT_REQUEST) {
767 DB_SMT("SMT - received ESF, sending RDF");
768 smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_CLASS,local) ;
769 }
770 break ;
771 case SMT_PMF_GET :
772 case SMT_PMF_SET :
773 if (sm->smt_type != SMT_REQUEST)
774 break ;
775 /* update statistics */
776 if (sm->smt_class == SMT_PMF_GET)
777 smc->mib.priv.fddiPRIVPMF_Get_Rx++ ;
778 else
779 smc->mib.priv.fddiPRIVPMF_Set_Rx++ ;
780 /*
781 * ignore PMF SET with I/G set
782 */
783 if ((sm->smt_class == SMT_PMF_SET) &&
784 !is_individual(&sm->smt_dest)) {
785 DB_SMT("SMT: ignoring PMF-SET with I/G set");
786 break ;
787 }
788 smt_pmf_received_pack(smc,mb, local) ;
789 break ;
790 case SMT_SRF :
791 dump_smt(smc,sm,"SRF received") ;
792 break ;
793 default :
794 if (sm->smt_type != SMT_REQUEST)
795 break ;
796 /*
797 * For frames with unknown class:
798 * we need to send a RDF frame according to 8.1.3.1.1,
799 * only if it is a REQUEST.
800 */
801 DB_SMT("SMT : class = %d, send RDF to %s",
802 sm->smt_class, addr_to_string(&sm->smt_source));
803
804 smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_CLASS,local) ;
805 break ;
806 #endif
807 }
808 if (illegal) {
809 DB_SMT("SMT: discarding invalid frame, reason = %d", illegal);
810 }
811 smt_free_mbuf(smc,mb) ;
812 }
813
814 static void update_dac(struct s_smc *smc, int report)
815 {
816 int cond ;
817
818 cond = ( smc->mib.m[MAC0].fddiMACUNDA_Flag |
819 smc->mib.m[MAC0].fddiMACDA_Flag) != 0 ;
820 if (report && (cond != smc->mib.m[MAC0].fddiMACDuplicateAddressCond))
821 smt_srf_event(smc, SMT_COND_MAC_DUP_ADDR,INDEX_MAC,cond) ;
822 else
823 smc->mib.m[MAC0].fddiMACDuplicateAddressCond = cond ;
824 }
825
826 /*
827 * send SMT frame
828 * set source address
829 * set station ID
830 * send frame
831 */
832 void smt_send_frame(struct s_smc *smc, SMbuf *mb, int fc, int local)
833 /* SMbuf *mb; buffer to send */
834 /* int fc; FC value */
835 {
836 struct smt_header *sm ;
837
838 if (!smc->r.sm_ma_avail && !local) {
839 smt_free_mbuf(smc,mb) ;
840 return ;
841 }
842 sm = smtod(mb,struct smt_header *) ;
843 sm->smt_source = smc->mib.m[MAC0].fddiMACSMTAddress ;
844 sm->smt_sid = smc->mib.fddiSMTStationId ;
845
846 smt_swap_para(sm,(int) mb->sm_len,0) ; /* swap para & header */
847 hwm_conv_can(smc,(char *)sm,12) ; /* convert SA and DA */
848 smc->mib.m[MAC0].fddiMACSMTTransmit_Ct++ ;
849 smt_send_mbuf(smc,mb,local ? FC_SMT_LOC : fc) ;
850 }
851
852 /*
853 * generate and send RDF
854 */
855 static void smt_send_rdf(struct s_smc *smc, SMbuf *rej, int fc, int reason,
856 int local)
857 /* SMbuf *rej; mbuf of offending frame */
858 /* int fc; FC of denied frame */
859 /* int reason; reason code */
860 {
861 SMbuf *mb ;
862 struct smt_header *sm ; /* header of offending frame */
863 struct smt_rdf *rdf ;
864 int len ;
865 int frame_len ;
866
867 sm = smtod(rej,struct smt_header *) ;
868 if (sm->smt_type != SMT_REQUEST)
869 return ;
870
871 DB_SMT("SMT: sending RDF to %s,reason = 0x%x",
872 addr_to_string(&sm->smt_source), reason);
873
874
875 /*
876 * note: get framelength from MAC length, NOT from SMT header
877 * smt header length is included in sm_len
878 */
879 frame_len = rej->sm_len ;
880
881 if (!(mb=smt_build_frame(smc,SMT_RDF,SMT_REPLY,sizeof(struct smt_rdf))))
882 return ;
883 rdf = smtod(mb,struct smt_rdf *) ;
884 rdf->smt.smt_tid = sm->smt_tid ; /* use TID from sm */
885 rdf->smt.smt_dest = sm->smt_source ; /* set dest = source */
886
887 /* set P12 */
888 rdf->reason.para.p_type = SMT_P_REASON ;
889 rdf->reason.para.p_len = sizeof(struct smt_p_reason) - PARA_LEN ;
890 rdf->reason.rdf_reason = reason ;
891
892 /* set P14 */
893 rdf->version.para.p_type = SMT_P_VERSION ;
894 rdf->version.para.p_len = sizeof(struct smt_p_version) - PARA_LEN ;
895 rdf->version.v_pad = 0 ;
896 rdf->version.v_n = 1 ;
897 rdf->version.v_index = 1 ;
898 rdf->version.v_version[0] = SMT_VID_2 ;
899 rdf->version.v_pad2 = 0 ;
900
901 /* set P13 */
902 if ((unsigned int) frame_len <= SMT_MAX_INFO_LEN - sizeof(*rdf) +
903 2*sizeof(struct smt_header))
904 len = frame_len ;
905 else
906 len = SMT_MAX_INFO_LEN - sizeof(*rdf) +
907 2*sizeof(struct smt_header) ;
908 /* make length multiple of 4 */
909 len &= ~3 ;
910 rdf->refused.para.p_type = SMT_P_REFUSED ;
911 /* length of para is smt_frame + ref_fc */
912 rdf->refused.para.p_len = len + 4 ;
913 rdf->refused.ref_fc = fc ;
914
915 /* swap it back */
916 smt_swap_para(sm,frame_len,0) ;
917
918 memcpy((char *) &rdf->refused.ref_header,(char *) sm,len) ;
919
920 len -= sizeof(struct smt_header) ;
921 mb->sm_len += len ;
922 rdf->smt.smt_len += len ;
923
924 dump_smt(smc,(struct smt_header *)rdf,"RDF") ;
925 smc->mib.priv.fddiPRIVRDF_Tx++ ;
926 smt_send_frame(smc,mb,FC_SMT_INFO,local) ;
927 }
928
929 /*
930 * generate and send NIF
931 */
932 static void smt_send_nif(struct s_smc *smc, const struct fddi_addr *dest,
933 int fc, u_long tid, int type, int local)
934 /* struct fddi_addr *dest; dest address */
935 /* int fc; frame control */
936 /* u_long tid; transaction id */
937 /* int type; frame type */
938 {
939 struct smt_nif *nif ;
940 SMbuf *mb ;
941
942 if (!(mb = smt_build_frame(smc,SMT_NIF,type,sizeof(struct smt_nif))))
943 return ;
944 nif = smtod(mb, struct smt_nif *) ;
945 smt_fill_una(smc,&nif->una) ; /* set UNA */
946 smt_fill_sde(smc,&nif->sde) ; /* set station descriptor */
947 smt_fill_state(smc,&nif->state) ; /* set state information */
948 #ifdef SMT6_10
949 smt_fill_fsc(smc,&nif->fsc) ; /* set frame status cap. */
950 #endif
951 nif->smt.smt_dest = *dest ; /* destination address */
952 nif->smt.smt_tid = tid ; /* transaction ID */
953 dump_smt(smc,(struct smt_header *)nif,"NIF") ;
954 smt_send_frame(smc,mb,fc,local) ;
955 }
956
957 #ifdef DEBUG
958 /*
959 * send NIF request (test purpose)
960 */
961 static void smt_send_nif_request(struct s_smc *smc, struct fddi_addr *dest)
962 {
963 smc->sm.pend[SMT_TID_NIF_TEST] = smt_get_tid(smc) ;
964 smt_send_nif(smc,dest, FC_SMT_INFO, smc->sm.pend[SMT_TID_NIF_TEST],
965 SMT_REQUEST,0) ;
966 }
967
968 /*
969 * send ECF request (test purpose)
970 */
971 static void smt_send_ecf_request(struct s_smc *smc, struct fddi_addr *dest,
972 int len)
973 {
974 smc->sm.pend[SMT_TID_ECF] = smt_get_tid(smc) ;
975 smt_send_ecf(smc,dest, FC_SMT_INFO, smc->sm.pend[SMT_TID_ECF],
976 SMT_REQUEST,len) ;
977 }
978 #endif
979
980 /*
981 * echo test
982 */
983 static void smt_echo_test(struct s_smc *smc, int dna)
984 {
985 u_long tid ;
986
987 smc->sm.pend[dna ? SMT_TID_ECF_DNA : SMT_TID_ECF_UNA] =
988 tid = smt_get_tid(smc) ;
989 smt_send_ecf(smc, dna ?
990 &smc->mib.m[MAC0].fddiMACDownstreamNbr :
991 &smc->mib.m[MAC0].fddiMACUpstreamNbr,
992 FC_SMT_INFO,tid, SMT_REQUEST, (SMT_TEST_ECHO_LEN & ~3)-8) ;
993 }
994
995 /*
996 * generate and send ECF
997 */
998 static void smt_send_ecf(struct s_smc *smc, struct fddi_addr *dest, int fc,
999 u_long tid, int type, int len)
1000 /* struct fddi_addr *dest; dest address */
1001 /* int fc; frame control */
1002 /* u_long tid; transaction id */
1003 /* int type; frame type */
1004 /* int len; frame length */
1005 {
1006 struct smt_ecf *ecf ;
1007 SMbuf *mb ;
1008
1009 if (!(mb = smt_build_frame(smc,SMT_ECF,type,SMT_ECF_LEN + len)))
1010 return ;
1011 ecf = smtod(mb, struct smt_ecf *) ;
1012
1013 smt_fill_echo(smc,&ecf->ec_echo,tid,len) ; /* set ECHO */
1014 ecf->smt.smt_dest = *dest ; /* destination address */
1015 ecf->smt.smt_tid = tid ; /* transaction ID */
1016 smc->mib.priv.fddiPRIVECF_Req_Tx++ ;
1017 smt_send_frame(smc,mb,fc,0) ;
1018 }
1019
1020 /*
1021 * generate and send SIF config response
1022 */
1023
1024 static void smt_send_sif_config(struct s_smc *smc, struct fddi_addr *dest,
1025 u_long tid, int local)
1026 /* struct fddi_addr *dest; dest address */
1027 /* u_long tid; transaction id */
1028 {
1029 struct smt_sif_config *sif ;
1030 SMbuf *mb ;
1031 int len ;
1032 if (!(mb = smt_build_frame(smc,SMT_SIF_CONFIG,SMT_REPLY,
1033 SIZEOF_SMT_SIF_CONFIG)))
1034 return ;
1035
1036 sif = smtod(mb, struct smt_sif_config *) ;
1037 smt_fill_timestamp(smc,&sif->ts) ; /* set time stamp */
1038 smt_fill_sde(smc,&sif->sde) ; /* set station descriptor */
1039 smt_fill_version(smc,&sif->version) ; /* set version information */
1040 smt_fill_state(smc,&sif->state) ; /* set state information */
1041 smt_fill_policy(smc,&sif->policy) ; /* set station policy */
1042 smt_fill_latency(smc,&sif->latency); /* set station latency */
1043 smt_fill_neighbor(smc,&sif->neighbor); /* set station neighbor */
1044 smt_fill_setcount(smc,&sif->setcount) ; /* set count */
1045 len = smt_fill_path(smc,&sif->path); /* set station path descriptor*/
1046 sif->smt.smt_dest = *dest ; /* destination address */
1047 sif->smt.smt_tid = tid ; /* transaction ID */
1048 smt_add_frame_len(mb,len) ; /* adjust length fields */
1049 dump_smt(smc,(struct smt_header *)sif,"SIF Configuration Reply") ;
1050 smt_send_frame(smc,mb,FC_SMT_INFO,local) ;
1051 }
1052
1053 /*
1054 * generate and send SIF operation response
1055 */
1056
1057 static void smt_send_sif_operation(struct s_smc *smc, struct fddi_addr *dest,
1058 u_long tid, int local)
1059 /* struct fddi_addr *dest; dest address */
1060 /* u_long tid; transaction id */
1061 {
1062 struct smt_sif_operation *sif ;
1063 SMbuf *mb ;
1064 int ports ;
1065 int i ;
1066
1067 ports = NUMPHYS ;
1068 #ifndef CONCENTRATOR
1069 if (smc->s.sas == SMT_SAS)
1070 ports = 1 ;
1071 #endif
1072
1073 if (!(mb = smt_build_frame(smc,SMT_SIF_OPER,SMT_REPLY,
1074 SIZEOF_SMT_SIF_OPERATION+ports*sizeof(struct smt_p_lem))))
1075 return ;
1076 sif = smtod(mb, struct smt_sif_operation *) ;
1077 smt_fill_timestamp(smc,&sif->ts) ; /* set time stamp */
1078 smt_fill_mac_status(smc,&sif->status) ; /* set mac status */
1079 smt_fill_mac_counter(smc,&sif->mc) ; /* set mac counter field */
1080 smt_fill_mac_fnc(smc,&sif->fnc) ; /* set frame not copied counter */
1081 smt_fill_manufacturer(smc,&sif->man) ; /* set manufacturer field */
1082 smt_fill_user(smc,&sif->user) ; /* set user field */
1083 smt_fill_setcount(smc,&sif->setcount) ; /* set count */
1084 /*
1085 * set link error mon information
1086 */
1087 if (ports == 1) {
1088 smt_fill_lem(smc,sif->lem,PS) ;
1089 }
1090 else {
1091 for (i = 0 ; i < ports ; i++) {
1092 smt_fill_lem(smc,&sif->lem[i],i) ;
1093 }
1094 }
1095
1096 sif->smt.smt_dest = *dest ; /* destination address */
1097 sif->smt.smt_tid = tid ; /* transaction ID */
1098 dump_smt(smc,(struct smt_header *)sif,"SIF Operation Reply") ;
1099 smt_send_frame(smc,mb,FC_SMT_INFO,local) ;
1100 }
1101
1102 /*
1103 * get and initialize SMT frame
1104 */
1105 SMbuf *smt_build_frame(struct s_smc *smc, int class, int type,
1106 int length)
1107 {
1108 SMbuf *mb ;
1109 struct smt_header *smt ;
1110
1111 #if 0
1112 if (!smc->r.sm_ma_avail) {
1113 return 0;
1114 }
1115 #endif
1116 if (!(mb = smt_get_mbuf(smc)))
1117 return mb;
1118
1119 mb->sm_len = length ;
1120 smt = smtod(mb, struct smt_header *) ;
1121 smt->smt_dest = fddi_broadcast ; /* set dest = broadcast */
1122 smt->smt_class = class ;
1123 smt->smt_type = type ;
1124 switch (class) {
1125 case SMT_NIF :
1126 case SMT_SIF_CONFIG :
1127 case SMT_SIF_OPER :
1128 case SMT_ECF :
1129 smt->smt_version = SMT_VID ;
1130 break ;
1131 default :
1132 smt->smt_version = SMT_VID_2 ;
1133 break ;
1134 }
1135 smt->smt_tid = smt_get_tid(smc) ; /* set transaction ID */
1136 smt->smt_pad = 0 ;
1137 smt->smt_len = length - sizeof(struct smt_header) ;
1138 return mb;
1139 }
1140
1141 static void smt_add_frame_len(SMbuf *mb, int len)
1142 {
1143 struct smt_header *smt ;
1144
1145 smt = smtod(mb, struct smt_header *) ;
1146 smt->smt_len += len ;
1147 mb->sm_len += len ;
1148 }
1149
1150
1151
1152 /*
1153 * fill values in UNA parameter
1154 */
1155 static void smt_fill_una(struct s_smc *smc, struct smt_p_una *una)
1156 {
1157 SMTSETPARA(una,SMT_P_UNA) ;
1158 una->una_pad = 0 ;
1159 una->una_node = smc->mib.m[MAC0].fddiMACUpstreamNbr ;
1160 }
1161
1162 /*
1163 * fill values in SDE parameter
1164 */
1165 static void smt_fill_sde(struct s_smc *smc, struct smt_p_sde *sde)
1166 {
1167 SMTSETPARA(sde,SMT_P_SDE) ;
1168 sde->sde_non_master = smc->mib.fddiSMTNonMaster_Ct ;
1169 sde->sde_master = smc->mib.fddiSMTMaster_Ct ;
1170 sde->sde_mac_count = NUMMACS ; /* only 1 MAC */
1171 #ifdef CONCENTRATOR
1172 sde->sde_type = SMT_SDE_CONCENTRATOR ;
1173 #else
1174 sde->sde_type = SMT_SDE_STATION ;
1175 #endif
1176 }
1177
1178 /*
1179 * fill in values in station state parameter
1180 */
1181 static void smt_fill_state(struct s_smc *smc, struct smt_p_state *state)
1182 {
1183 int top ;
1184 int twist ;
1185
1186 SMTSETPARA(state,SMT_P_STATE) ;
1187 state->st_pad = 0 ;
1188
1189 /* determine topology */
1190 top = 0 ;
1191 if (smc->mib.fddiSMTPeerWrapFlag) {
1192 top |= SMT_ST_WRAPPED ; /* state wrapped */
1193 }
1194 #ifdef CONCENTRATOR
1195 if (cfm_status_unattached(smc)) {
1196 top |= SMT_ST_UNATTACHED ; /* unattached concentrator */
1197 }
1198 #endif
1199 if ((twist = pcm_status_twisted(smc)) & 1) {
1200 top |= SMT_ST_TWISTED_A ; /* twisted cable */
1201 }
1202 if (twist & 2) {
1203 top |= SMT_ST_TWISTED_B ; /* twisted cable */
1204 }
1205 #ifdef OPT_SRF
1206 top |= SMT_ST_SRF ;
1207 #endif
1208 if (pcm_rooted_station(smc))
1209 top |= SMT_ST_ROOTED_S ;
1210 if (smc->mib.a[0].fddiPATHSbaPayload != 0)
1211 top |= SMT_ST_SYNC_SERVICE ;
1212 state->st_topology = top ;
1213 state->st_dupl_addr =
1214 ((smc->mib.m[MAC0].fddiMACDA_Flag ? SMT_ST_MY_DUPA : 0 ) |
1215 (smc->mib.m[MAC0].fddiMACUNDA_Flag ? SMT_ST_UNA_DUPA : 0)) ;
1216 }
1217
1218 /*
1219 * fill values in timestamp parameter
1220 */
1221 static void smt_fill_timestamp(struct s_smc *smc, struct smt_p_timestamp *ts)
1222 {
1223
1224 SMTSETPARA(ts,SMT_P_TIMESTAMP) ;
1225 smt_set_timestamp(smc,ts->ts_time) ;
1226 }
1227
1228 void smt_set_timestamp(struct s_smc *smc, u_char *p)
1229 {
1230 u_long time ;
1231 u_long utime ;
1232
1233 /*
1234 * timestamp is 64 bits long ; resolution is 80 nS
1235 * our clock resolution is 10mS
1236 * 10mS/80ns = 125000 ~ 2^17 = 131072
1237 */
1238 utime = smt_get_time() ;
1239 time = utime * 100 ;
1240 time /= TICKS_PER_SECOND ;
1241 p[0] = 0 ;
1242 p[1] = (u_char)((time>>(8+8+8+8-1)) & 1) ;
1243 p[2] = (u_char)(time>>(8+8+8-1)) ;
1244 p[3] = (u_char)(time>>(8+8-1)) ;
1245 p[4] = (u_char)(time>>(8-1)) ;
1246 p[5] = (u_char)(time<<1) ;
1247 p[6] = (u_char)(smc->sm.uniq_ticks>>8) ;
1248 p[7] = (u_char)smc->sm.uniq_ticks ;
1249 /*
1250 * make sure we don't wrap: restart whenever the upper digits change
1251 */
1252 if (utime != smc->sm.uniq_time) {
1253 smc->sm.uniq_ticks = 0 ;
1254 }
1255 smc->sm.uniq_ticks++ ;
1256 smc->sm.uniq_time = utime ;
1257 }
1258
1259 /*
1260 * fill values in station policy parameter
1261 */
1262 static void smt_fill_policy(struct s_smc *smc, struct smt_p_policy *policy)
1263 {
1264 int i ;
1265 const u_char *map ;
1266 u_short in ;
1267 u_short out ;
1268
1269 /*
1270 * MIB para 101b (fddiSMTConnectionPolicy) coding
1271 * is different from 0005 coding
1272 */
1273 static const u_char ansi_weirdness[16] = {
1274 0,7,5,3,8,1,6,4,9,10,2,11,12,13,14,15
1275 } ;
1276 SMTSETPARA(policy,SMT_P_POLICY) ;
1277
1278 out = 0 ;
1279 in = smc->mib.fddiSMTConnectionPolicy ;
1280 for (i = 0, map = ansi_weirdness ; i < 16 ; i++) {
1281 if (in & 1)
1282 out |= (1<<*map) ;
1283 in >>= 1 ;
1284 map++ ;
1285 }
1286 policy->pl_config = smc->mib.fddiSMTConfigPolicy ;
1287 policy->pl_connect = out ;
1288 }
1289
1290 /*
1291 * fill values in latency equivalent parameter
1292 */
1293 static void smt_fill_latency(struct s_smc *smc, struct smt_p_latency *latency)
1294 {
1295 SMTSETPARA(latency,SMT_P_LATENCY) ;
1296
1297 latency->lt_phyout_idx1 = phy_index(smc,0) ;
1298 latency->lt_latency1 = 10 ; /* in octets (byte clock) */
1299 /*
1300 * note: latency has two phy entries by definition
1301 * for a SAS, the 2nd one is null
1302 */
1303 if (smc->s.sas == SMT_DAS) {
1304 latency->lt_phyout_idx2 = phy_index(smc,1) ;
1305 latency->lt_latency2 = 10 ; /* in octets (byte clock) */
1306 }
1307 else {
1308 latency->lt_phyout_idx2 = 0 ;
1309 latency->lt_latency2 = 0 ;
1310 }
1311 }
1312
1313 /*
1314 * fill values in MAC neighbors parameter
1315 */
1316 static void smt_fill_neighbor(struct s_smc *smc, struct smt_p_neighbor *neighbor)
1317 {
1318 SMTSETPARA(neighbor,SMT_P_NEIGHBORS) ;
1319
1320 neighbor->nb_mib_index = INDEX_MAC ;
1321 neighbor->nb_mac_index = mac_index(smc,1) ;
1322 neighbor->nb_una = smc->mib.m[MAC0].fddiMACUpstreamNbr ;
1323 neighbor->nb_dna = smc->mib.m[MAC0].fddiMACDownstreamNbr ;
1324 }
1325
1326 /*
1327 * fill values in path descriptor
1328 */
1329 #ifdef CONCENTRATOR
1330 #define ALLPHYS NUMPHYS
1331 #else
1332 #define ALLPHYS ((smc->s.sas == SMT_SAS) ? 1 : 2)
1333 #endif
1334
1335 static int smt_fill_path(struct s_smc *smc, struct smt_p_path *path)
1336 {
1337 SK_LOC_DECL(int,type) ;
1338 SK_LOC_DECL(int,state) ;
1339 SK_LOC_DECL(int,remote) ;
1340 SK_LOC_DECL(int,mac) ;
1341 int len ;
1342 int p ;
1343 int physp ;
1344 struct smt_phy_rec *phy ;
1345 struct smt_mac_rec *pd_mac ;
1346
1347 len = PARA_LEN +
1348 sizeof(struct smt_mac_rec) * NUMMACS +
1349 sizeof(struct smt_phy_rec) * ALLPHYS ;
1350 path->para.p_type = SMT_P_PATH ;
1351 path->para.p_len = len - PARA_LEN ;
1352
1353 /* PHYs */
1354 for (p = 0,phy = path->pd_phy ; p < ALLPHYS ; p++, phy++) {
1355 physp = p ;
1356 #ifndef CONCENTRATOR
1357 if (smc->s.sas == SMT_SAS)
1358 physp = PS ;
1359 #endif
1360 pcm_status_state(smc,physp,&type,&state,&remote,&mac) ;
1361 #ifdef LITTLE_ENDIAN
1362 phy->phy_mib_index = smt_swap_short((u_short)p+INDEX_PORT) ;
1363 #else
1364 phy->phy_mib_index = p+INDEX_PORT ;
1365 #endif
1366 phy->phy_type = type ;
1367 phy->phy_connect_state = state ;
1368 phy->phy_remote_type = remote ;
1369 phy->phy_remote_mac = mac ;
1370 phy->phy_resource_idx = phy_con_resource_index(smc,p) ;
1371 }
1372
1373 /* MAC */
1374 pd_mac = (struct smt_mac_rec *) phy ;
1375 pd_mac->mac_addr = smc->mib.m[MAC0].fddiMACSMTAddress ;
1376 pd_mac->mac_resource_idx = mac_con_resource_index(smc,1) ;
1377 return len;
1378 }
1379
1380 /*
1381 * fill values in mac status
1382 */
1383 static void smt_fill_mac_status(struct s_smc *smc, struct smt_p_mac_status *st)
1384 {
1385 SMTSETPARA(st,SMT_P_MAC_STATUS) ;
1386
1387 st->st_mib_index = INDEX_MAC ;
1388 st->st_mac_index = mac_index(smc,1) ;
1389
1390 mac_update_counter(smc) ;
1391 /*
1392 * timer values are represented in SMT as 2's complement numbers
1393 * units : internal : 2's complement BCLK
1394 */
1395 st->st_t_req = smc->mib.m[MAC0].fddiMACT_Req ;
1396 st->st_t_neg = smc->mib.m[MAC0].fddiMACT_Neg ;
1397 st->st_t_max = smc->mib.m[MAC0].fddiMACT_Max ;
1398 st->st_tvx_value = smc->mib.m[MAC0].fddiMACTvxValue ;
1399 st->st_t_min = smc->mib.m[MAC0].fddiMACT_Min ;
1400
1401 st->st_sba = smc->mib.a[PATH0].fddiPATHSbaPayload ;
1402 st->st_frame_ct = smc->mib.m[MAC0].fddiMACFrame_Ct ;
1403 st->st_error_ct = smc->mib.m[MAC0].fddiMACError_Ct ;
1404 st->st_lost_ct = smc->mib.m[MAC0].fddiMACLost_Ct ;
1405 }
1406
1407 /*
1408 * fill values in LEM status
1409 */
1410 static void smt_fill_lem(struct s_smc *smc, struct smt_p_lem *lem, int phy)
1411 {
1412 struct fddi_mib_p *mib ;
1413
1414 mib = smc->y[phy].mib ;
1415
1416 SMTSETPARA(lem,SMT_P_LEM) ;
1417 lem->lem_mib_index = phy+INDEX_PORT ;
1418 lem->lem_phy_index = phy_index(smc,phy) ;
1419 lem->lem_pad2 = 0 ;
1420 lem->lem_cutoff = mib->fddiPORTLer_Cutoff ;
1421 lem->lem_alarm = mib->fddiPORTLer_Alarm ;
1422 /* long term bit error rate */
1423 lem->lem_estimate = mib->fddiPORTLer_Estimate ;
1424 /* # of rejected connections */
1425 lem->lem_reject_ct = mib->fddiPORTLem_Reject_Ct ;
1426 lem->lem_ct = mib->fddiPORTLem_Ct ; /* total number of errors */
1427 }
1428
1429 /*
1430 * fill version parameter
1431 */
1432 static void smt_fill_version(struct s_smc *smc, struct smt_p_version *vers)
1433 {
1434 SK_UNUSED(smc) ;
1435 SMTSETPARA(vers,SMT_P_VERSION) ;
1436 vers->v_pad = 0 ;
1437 vers->v_n = 1 ; /* one version is enough .. */
1438 vers->v_index = 1 ;
1439 vers->v_version[0] = SMT_VID_2 ;
1440 vers->v_pad2 = 0 ;
1441 }
1442
1443 #ifdef SMT6_10
1444 /*
1445 * fill frame status capabilities
1446 */
1447 /*
1448 * note: this para 200B is NOT in swap table, because it's also set in
1449 * PMF add_para
1450 */
1451 static void smt_fill_fsc(struct s_smc *smc, struct smt_p_fsc *fsc)
1452 {
1453 SK_UNUSED(smc) ;
1454 SMTSETPARA(fsc,SMT_P_FSC) ;
1455 fsc->fsc_pad0 = 0 ;
1456 fsc->fsc_mac_index = INDEX_MAC ; /* this is MIB ; MIB is NOT
1457 * mac_index ()i !
1458 */
1459 fsc->fsc_pad1 = 0 ;
1460 fsc->fsc_value = FSC_TYPE0 ; /* "normal" node */
1461 #ifdef LITTLE_ENDIAN
1462 fsc->fsc_mac_index = smt_swap_short(INDEX_MAC) ;
1463 fsc->fsc_value = smt_swap_short(FSC_TYPE0) ;
1464 #endif
1465 }
1466 #endif
1467
1468 /*
1469 * fill mac counter field
1470 */
1471 static void smt_fill_mac_counter(struct s_smc *smc, struct smt_p_mac_counter *mc)
1472 {
1473 SMTSETPARA(mc,SMT_P_MAC_COUNTER) ;
1474 mc->mc_mib_index = INDEX_MAC ;
1475 mc->mc_index = mac_index(smc,1) ;
1476 mc->mc_receive_ct = smc->mib.m[MAC0].fddiMACCopied_Ct ;
1477 mc->mc_transmit_ct = smc->mib.m[MAC0].fddiMACTransmit_Ct ;
1478 }
1479
1480 /*
1481 * fill mac frame not copied counter
1482 */
1483 static void smt_fill_mac_fnc(struct s_smc *smc, struct smt_p_mac_fnc *fnc)
1484 {
1485 SMTSETPARA(fnc,SMT_P_MAC_FNC) ;
1486 fnc->nc_mib_index = INDEX_MAC ;
1487 fnc->nc_index = mac_index(smc,1) ;
1488 fnc->nc_counter = smc->mib.m[MAC0].fddiMACNotCopied_Ct ;
1489 }
1490
1491
1492 /*
1493 * fill manufacturer field
1494 */
1495 static void smt_fill_manufacturer(struct s_smc *smc,
1496 struct smp_p_manufacturer *man)
1497 {
1498 SMTSETPARA(man,SMT_P_MANUFACTURER) ;
1499 memcpy((char *) man->mf_data,
1500 (char *) smc->mib.fddiSMTManufacturerData,
1501 sizeof(man->mf_data)) ;
1502 }
1503
1504 /*
1505 * fill user field
1506 */
1507 static void smt_fill_user(struct s_smc *smc, struct smp_p_user *user)
1508 {
1509 SMTSETPARA(user,SMT_P_USER) ;
1510 memcpy((char *) user->us_data,
1511 (char *) smc->mib.fddiSMTUserData,
1512 sizeof(user->us_data)) ;
1513 }
1514
1515 /*
1516 * fill set count
1517 */
1518 static void smt_fill_setcount(struct s_smc *smc, struct smt_p_setcount *setcount)
1519 {
1520 SK_UNUSED(smc) ;
1521 SMTSETPARA(setcount,SMT_P_SETCOUNT) ;
1522 setcount->count = smc->mib.fddiSMTSetCount.count ;
1523 memcpy((char *)setcount->timestamp,
1524 (char *)smc->mib.fddiSMTSetCount.timestamp,8) ;
1525 }
1526
1527 /*
1528 * fill echo data
1529 */
1530 static void smt_fill_echo(struct s_smc *smc, struct smt_p_echo *echo, u_long seed,
1531 int len)
1532 {
1533 u_char *p ;
1534
1535 SK_UNUSED(smc) ;
1536 SMTSETPARA(echo,SMT_P_ECHODATA) ;
1537 echo->para.p_len = len ;
1538 for (p = echo->ec_data ; len ; len--) {
1539 *p++ = (u_char) seed ;
1540 seed += 13 ;
1541 }
1542 }
1543
1544 /*
1545 * clear DNA and UNA
1546 * called from CFM if configuration changes
1547 */
1548 static void smt_clear_una_dna(struct s_smc *smc)
1549 {
1550 smc->mib.m[MAC0].fddiMACUpstreamNbr = SMT_Unknown ;
1551 smc->mib.m[MAC0].fddiMACDownstreamNbr = SMT_Unknown ;
1552 }
1553
1554 static void smt_clear_old_una_dna(struct s_smc *smc)
1555 {
1556 smc->mib.m[MAC0].fddiMACOldUpstreamNbr = SMT_Unknown ;
1557 smc->mib.m[MAC0].fddiMACOldDownstreamNbr = SMT_Unknown ;
1558 }
1559
1560 u_long smt_get_tid(struct s_smc *smc)
1561 {
1562 u_long tid ;
1563 while ((tid = ++(smc->sm.smt_tid) ^ SMT_TID_MAGIC) == 0)
1564 ;
1565 return tid & 0x3fffffffL;
1566 }
1567
1568
1569 /*
1570 * table of parameter lengths
1571 */
1572 static const struct smt_pdef {
1573 int ptype ;
1574 int plen ;
1575 const char *pswap ;
1576 } smt_pdef[] = {
1577 { SMT_P_UNA, sizeof(struct smt_p_una) ,
1578 SWAP_SMT_P_UNA } ,
1579 { SMT_P_SDE, sizeof(struct smt_p_sde) ,
1580 SWAP_SMT_P_SDE } ,
1581 { SMT_P_STATE, sizeof(struct smt_p_state) ,
1582 SWAP_SMT_P_STATE } ,
1583 { SMT_P_TIMESTAMP,sizeof(struct smt_p_timestamp) ,
1584 SWAP_SMT_P_TIMESTAMP } ,
1585 { SMT_P_POLICY, sizeof(struct smt_p_policy) ,
1586 SWAP_SMT_P_POLICY } ,
1587 { SMT_P_LATENCY, sizeof(struct smt_p_latency) ,
1588 SWAP_SMT_P_LATENCY } ,
1589 { SMT_P_NEIGHBORS,sizeof(struct smt_p_neighbor) ,
1590 SWAP_SMT_P_NEIGHBORS } ,
1591 { SMT_P_PATH, sizeof(struct smt_p_path) ,
1592 SWAP_SMT_P_PATH } ,
1593 { SMT_P_MAC_STATUS,sizeof(struct smt_p_mac_status) ,
1594 SWAP_SMT_P_MAC_STATUS } ,
1595 { SMT_P_LEM, sizeof(struct smt_p_lem) ,
1596 SWAP_SMT_P_LEM } ,
1597 { SMT_P_MAC_COUNTER,sizeof(struct smt_p_mac_counter) ,
1598 SWAP_SMT_P_MAC_COUNTER } ,
1599 { SMT_P_MAC_FNC,sizeof(struct smt_p_mac_fnc) ,
1600 SWAP_SMT_P_MAC_FNC } ,
1601 { SMT_P_PRIORITY,sizeof(struct smt_p_priority) ,
1602 SWAP_SMT_P_PRIORITY } ,
1603 { SMT_P_EB,sizeof(struct smt_p_eb) ,
1604 SWAP_SMT_P_EB } ,
1605 { SMT_P_MANUFACTURER,sizeof(struct smp_p_manufacturer) ,
1606 SWAP_SMT_P_MANUFACTURER } ,
1607 { SMT_P_REASON, sizeof(struct smt_p_reason) ,
1608 SWAP_SMT_P_REASON } ,
1609 { SMT_P_REFUSED, sizeof(struct smt_p_refused) ,
1610 SWAP_SMT_P_REFUSED } ,
1611 { SMT_P_VERSION, sizeof(struct smt_p_version) ,
1612 SWAP_SMT_P_VERSION } ,
1613 #ifdef ESS
1614 { SMT_P0015, sizeof(struct smt_p_0015) , SWAP_SMT_P0015 } ,
1615 { SMT_P0016, sizeof(struct smt_p_0016) , SWAP_SMT_P0016 } ,
1616 { SMT_P0017, sizeof(struct smt_p_0017) , SWAP_SMT_P0017 } ,
1617 { SMT_P0018, sizeof(struct smt_p_0018) , SWAP_SMT_P0018 } ,
1618 { SMT_P0019, sizeof(struct smt_p_0019) , SWAP_SMT_P0019 } ,
1619 { SMT_P001A, sizeof(struct smt_p_001a) , SWAP_SMT_P001A } ,
1620 { SMT_P001B, sizeof(struct smt_p_001b) , SWAP_SMT_P001B } ,
1621 { SMT_P001C, sizeof(struct smt_p_001c) , SWAP_SMT_P001C } ,
1622 { SMT_P001D, sizeof(struct smt_p_001d) , SWAP_SMT_P001D } ,
1623 #endif
1624 #if 0
1625 { SMT_P_FSC, sizeof(struct smt_p_fsc) ,
1626 SWAP_SMT_P_FSC } ,
1627 #endif
1628
1629 { SMT_P_SETCOUNT,0, SWAP_SMT_P_SETCOUNT } ,
1630 { SMT_P1048, 0, SWAP_SMT_P1048 } ,
1631 { SMT_P208C, 0, SWAP_SMT_P208C } ,
1632 { SMT_P208D, 0, SWAP_SMT_P208D } ,
1633 { SMT_P208E, 0, SWAP_SMT_P208E } ,
1634 { SMT_P208F, 0, SWAP_SMT_P208F } ,
1635 { SMT_P2090, 0, SWAP_SMT_P2090 } ,
1636 #ifdef ESS
1637 { SMT_P320B, sizeof(struct smt_p_320b) , SWAP_SMT_P320B } ,
1638 { SMT_P320F, sizeof(struct smt_p_320f) , SWAP_SMT_P320F } ,
1639 { SMT_P3210, sizeof(struct smt_p_3210) , SWAP_SMT_P3210 } ,
1640 #endif
1641 { SMT_P4050, 0, SWAP_SMT_P4050 } ,
1642 { SMT_P4051, 0, SWAP_SMT_P4051 } ,
1643 { SMT_P4052, 0, SWAP_SMT_P4052 } ,
1644 { SMT_P4053, 0, SWAP_SMT_P4053 } ,
1645 } ;
1646
1647 #define N_SMT_PLEN ARRAY_SIZE(smt_pdef)
1648
1649 int smt_check_para(struct s_smc *smc, struct smt_header *sm,
1650 const u_short list[])
1651 {
1652 const u_short *p = list ;
1653 while (*p) {
1654 if (!sm_to_para(smc,sm,(int) *p)) {
1655 DB_SMT("SMT: smt_check_para - missing para %hx", *p);
1656 return -1;
1657 }
1658 p++ ;
1659 }
1660 return 0;
1661 }
1662
1663 void *sm_to_para(struct s_smc *smc, struct smt_header *sm, int para)
1664 {
1665 char *p ;
1666 int len ;
1667 int plen ;
1668 void *found = NULL;
1669
1670 SK_UNUSED(smc) ;
1671
1672 len = sm->smt_len ;
1673 p = (char *)(sm+1) ; /* pointer to info */
1674 while (len > 0 ) {
1675 if (((struct smt_para *)p)->p_type == para)
1676 found = (void *) p ;
1677 plen = ((struct smt_para *)p)->p_len + PARA_LEN ;
1678 p += plen ;
1679 len -= plen ;
1680 if (len < 0) {
1681 DB_SMT("SMT : sm_to_para - length error %d", plen);
1682 return NULL;
1683 }
1684 if ((plen & 3) && (para != SMT_P_ECHODATA)) {
1685 DB_SMT("SMT : sm_to_para - odd length %d", plen);
1686 return NULL;
1687 }
1688 if (found)
1689 return found;
1690 }
1691 return NULL;
1692 }
1693
1694 #if 0
1695 /*
1696 * send ANTC data test frame
1697 */
1698 void fddi_send_antc(struct s_smc *smc, struct fddi_addr *dest)
1699 {
1700 SK_UNUSED(smc) ;
1701 SK_UNUSED(dest) ;
1702 #if 0
1703 SMbuf *mb ;
1704 struct smt_header *smt ;
1705 int i ;
1706 char *p ;
1707
1708 mb = smt_get_mbuf() ;
1709 mb->sm_len = 3000+12 ;
1710 p = smtod(mb, char *) + 12 ;
1711 for (i = 0 ; i < 3000 ; i++)
1712 *p++ = 1 << (i&7) ;
1713
1714 smt = smtod(mb, struct smt_header *) ;
1715 smt->smt_dest = *dest ;
1716 smt->smt_source = smc->mib.m[MAC0].fddiMACSMTAddress ;
1717 smt_send_mbuf(smc,mb,FC_ASYNC_LLC) ;
1718 #endif
1719 }
1720 #endif
1721
1722 #ifdef DEBUG
1723 char *addr_to_string(struct fddi_addr *addr)
1724 {
1725 int i ;
1726 static char string[6*3] = "****" ;
1727
1728 for (i = 0 ; i < 6 ; i++) {
1729 string[i * 3] = hex_asc_hi(addr->a[i]);
1730 string[i * 3 + 1] = hex_asc_lo(addr->a[i]);
1731 string[i * 3 + 2] = ':';
1732 }
1733 string[5 * 3 + 2] = 0;
1734 return string;
1735 }
1736 #endif
1737
1738 /*
1739 * return static mac index
1740 */
1741 static int mac_index(struct s_smc *smc, int mac)
1742 {
1743 SK_UNUSED(mac) ;
1744 #ifdef CONCENTRATOR
1745 SK_UNUSED(smc) ;
1746 return NUMPHYS + 1;
1747 #else
1748 return (smc->s.sas == SMT_SAS) ? 2 : 3;
1749 #endif
1750 }
1751
1752 /*
1753 * return static phy index
1754 */
1755 static int phy_index(struct s_smc *smc, int phy)
1756 {
1757 SK_UNUSED(smc) ;
1758 return phy + 1;
1759 }
1760
1761 /*
1762 * return dynamic mac connection resource index
1763 */
1764 static int mac_con_resource_index(struct s_smc *smc, int mac)
1765 {
1766 #ifdef CONCENTRATOR
1767 SK_UNUSED(smc) ;
1768 SK_UNUSED(mac) ;
1769 return entity_to_index(smc, cem_get_downstream(smc, ENTITY_MAC));
1770 #else
1771 SK_UNUSED(mac) ;
1772 switch (smc->mib.fddiSMTCF_State) {
1773 case SC9_C_WRAP_A :
1774 case SC5_THRU_B :
1775 case SC11_C_WRAP_S :
1776 return 1;
1777 case SC10_C_WRAP_B :
1778 case SC4_THRU_A :
1779 return 2;
1780 }
1781 return smc->s.sas == SMT_SAS ? 2 : 3;
1782 #endif
1783 }
1784
1785 /*
1786 * return dynamic phy connection resource index
1787 */
1788 static int phy_con_resource_index(struct s_smc *smc, int phy)
1789 {
1790 #ifdef CONCENTRATOR
1791 return entity_to_index(smc, cem_get_downstream(smc, ENTITY_PHY(phy))) ;
1792 #else
1793 switch (smc->mib.fddiSMTCF_State) {
1794 case SC9_C_WRAP_A :
1795 return phy == PA ? 3 : 2;
1796 case SC10_C_WRAP_B :
1797 return phy == PA ? 1 : 3;
1798 case SC4_THRU_A :
1799 return phy == PA ? 3 : 1;
1800 case SC5_THRU_B :
1801 return phy == PA ? 2 : 3;
1802 case SC11_C_WRAP_S :
1803 return 2;
1804 }
1805 return phy;
1806 #endif
1807 }
1808
1809 #ifdef CONCENTRATOR
1810 static int entity_to_index(struct s_smc *smc, int e)
1811 {
1812 if (e == ENTITY_MAC)
1813 return mac_index(smc, 1);
1814 else
1815 return phy_index(smc, e - ENTITY_PHY(0));
1816 }
1817 #endif
1818
1819 #ifdef LITTLE_ENDIAN
1820 static int smt_swap_short(u_short s)
1821 {
1822 return ((s>>8)&0xff) | ((s&0xff)<<8);
1823 }
1824
1825 void smt_swap_para(struct smt_header *sm, int len, int direction)
1826 /* int direction; 0 encode 1 decode */
1827 {
1828 struct smt_para *pa ;
1829 const struct smt_pdef *pd ;
1830 char *p ;
1831 int plen ;
1832 int type ;
1833 int i ;
1834
1835 /* printf("smt_swap_para sm %x len %d dir %d\n",
1836 sm,len,direction) ;
1837 */
1838 smt_string_swap((char *)sm,SWAP_SMTHEADER,len) ;
1839
1840 /* swap args */
1841 len -= sizeof(struct smt_header) ;
1842
1843 p = (char *) (sm + 1) ;
1844 while (len > 0) {
1845 pa = (struct smt_para *) p ;
1846 plen = pa->p_len ;
1847 type = pa->p_type ;
1848 pa->p_type = smt_swap_short(pa->p_type) ;
1849 pa->p_len = smt_swap_short(pa->p_len) ;
1850 if (direction) {
1851 plen = pa->p_len ;
1852 type = pa->p_type ;
1853 }
1854 /*
1855 * note: paras can have 0 length !
1856 */
1857 if (plen < 0)
1858 break ;
1859 plen += PARA_LEN ;
1860 for (i = N_SMT_PLEN, pd = smt_pdef; i ; i--,pd++) {
1861 if (pd->ptype == type)
1862 break ;
1863 }
1864 if (i && pd->pswap) {
1865 smt_string_swap(p+PARA_LEN,pd->pswap,len) ;
1866 }
1867 len -= plen ;
1868 p += plen ;
1869 }
1870 }
1871
1872 static void smt_string_swap(char *data, const char *format, int len)
1873 {
1874 const char *open_paren = NULL ;
1875 int x ;
1876
1877 while (len > 0 && *format) {
1878 switch (*format) {
1879 case '[' :
1880 open_paren = format ;
1881 break ;
1882 case ']' :
1883 format = open_paren ;
1884 break ;
1885 case '1' :
1886 case '2' :
1887 case '3' :
1888 case '4' :
1889 case '5' :
1890 case '6' :
1891 case '7' :
1892 case '8' :
1893 case '9' :
1894 data += *format - '0' ;
1895 len -= *format - '0' ;
1896 break ;
1897 case 'c':
1898 data++ ;
1899 len-- ;
1900 break ;
1901 case 's' :
1902 x = data[0] ;
1903 data[0] = data[1] ;
1904 data[1] = x ;
1905 data += 2 ;
1906 len -= 2 ;
1907 break ;
1908 case 'l' :
1909 x = data[0] ;
1910 data[0] = data[3] ;
1911 data[3] = x ;
1912 x = data[1] ;
1913 data[1] = data[2] ;
1914 data[2] = x ;
1915 data += 4 ;
1916 len -= 4 ;
1917 break ;
1918 }
1919 format++ ;
1920 }
1921 }
1922 #else
1923 void smt_swap_para(struct smt_header *sm, int len, int direction)
1924 /* int direction; 0 encode 1 decode */
1925 {
1926 SK_UNUSED(sm) ;
1927 SK_UNUSED(len) ;
1928 SK_UNUSED(direction) ;
1929 }
1930 #endif
1931
1932 /*
1933 * PMF actions
1934 */
1935 int smt_action(struct s_smc *smc, int class, int code, int index)
1936 {
1937 int event ;
1938 int port ;
1939 DB_SMT("SMT: action %d code %d", class, code);
1940 switch(class) {
1941 case SMT_STATION_ACTION :
1942 switch(code) {
1943 case SMT_STATION_ACTION_CONNECT :
1944 smc->mib.fddiSMTRemoteDisconnectFlag = FALSE ;
1945 queue_event(smc,EVENT_ECM,EC_CONNECT) ;
1946 break ;
1947 case SMT_STATION_ACTION_DISCONNECT :
1948 queue_event(smc,EVENT_ECM,EC_DISCONNECT) ;
1949 smc->mib.fddiSMTRemoteDisconnectFlag = TRUE ;
1950 RS_SET(smc,RS_DISCONNECT) ;
1951 AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
1952 FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_DISCONNECT,
1953 smt_get_event_word(smc));
1954 break ;
1955 case SMT_STATION_ACTION_PATHTEST :
1956 AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
1957 FDDI_SMT_EVENT, (u_long) FDDI_PATH_TEST,
1958 smt_get_event_word(smc));
1959 break ;
1960 case SMT_STATION_ACTION_SELFTEST :
1961 AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
1962 FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_SELF_TEST,
1963 smt_get_event_word(smc));
1964 break ;
1965 case SMT_STATION_ACTION_DISABLE_A :
1966 if (smc->y[PA].pc_mode == PM_PEER) {
1967 RS_SET(smc,RS_EVENT) ;
1968 queue_event(smc,EVENT_PCM+PA,PC_DISABLE) ;
1969 }
1970 break ;
1971 case SMT_STATION_ACTION_DISABLE_B :
1972 if (smc->y[PB].pc_mode == PM_PEER) {
1973 RS_SET(smc,RS_EVENT) ;
1974 queue_event(smc,EVENT_PCM+PB,PC_DISABLE) ;
1975 }
1976 break ;
1977 case SMT_STATION_ACTION_DISABLE_M :
1978 for (port = 0 ; port < NUMPHYS ; port++) {
1979 if (smc->mib.p[port].fddiPORTMy_Type != TM)
1980 continue ;
1981 RS_SET(smc,RS_EVENT) ;
1982 queue_event(smc,EVENT_PCM+port,PC_DISABLE) ;
1983 }
1984 break ;
1985 default :
1986 return 1;
1987 }
1988 break ;
1989 case SMT_PORT_ACTION :
1990 switch(code) {
1991 case SMT_PORT_ACTION_ENABLE :
1992 event = PC_ENABLE ;
1993 break ;
1994 case SMT_PORT_ACTION_DISABLE :
1995 event = PC_DISABLE ;
1996 break ;
1997 case SMT_PORT_ACTION_MAINT :
1998 event = PC_MAINT ;
1999 break ;
2000 case SMT_PORT_ACTION_START :
2001 event = PC_START ;
2002 break ;
2003 case SMT_PORT_ACTION_STOP :
2004 event = PC_STOP ;
2005 break ;
2006 default :
2007 return 1;
2008 }
2009 queue_event(smc,EVENT_PCM+index,event) ;
2010 break ;
2011 default :
2012 return 1;
2013 }
2014 return 0;
2015 }
2016
2017 /*
2018 * canonical conversion of <len> bytes beginning form *data
2019 */
2020 #ifdef USE_CAN_ADDR
2021 static void hwm_conv_can(struct s_smc *smc, char *data, int len)
2022 {
2023 int i ;
2024
2025 SK_UNUSED(smc) ;
2026
2027 for (i = len; i ; i--, data++)
2028 *data = bitrev8(*data);
2029 }
2030 #endif
2031
2032 #endif /* no SLIM_SMT */
2033
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