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reset: zynq: add driver Kconfig option
[linux/fpc-iii.git] / drivers / net / fddi / skfp / smt.c
blobcd78b7cacc753150a7e63f1ecd33d59e75d12e5e
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 #ifdef DEBUG
39 static const char *const smt_type_name[] = {
40 "SMT_00??", "SMT_INFO", "SMT_02??", "SMT_03??",
41 "SMT_04??", "SMT_05??", "SMT_06??", "SMT_07??",
42 "SMT_08??", "SMT_09??", "SMT_0A??", "SMT_0B??",
43 "SMT_0C??", "SMT_0D??", "SMT_0E??", "SMT_NSA"
44 } ;
45
46 static const char *const smt_class_name[] = {
47 "UNKNOWN","NIF","SIF_CONFIG","SIF_OPER","ECF","RAF","RDF",
48 "SRF","PMF_GET","PMF_SET","ESF"
49 } ;
50 #endif
51 #define LAST_CLASS (SMT_PMF_SET)
52
53 static const struct fddi_addr SMT_Unknown = {
54 { 0,0,0x1f,0,0,0 }
55 } ;
56
57 /*
58 * function prototypes
59 */
60 #ifdef LITTLE_ENDIAN
61 static int smt_swap_short(u_short s);
62 #endif
63 static int mac_index(struct s_smc *smc, int mac);
64 static int phy_index(struct s_smc *smc, int phy);
65 static int mac_con_resource_index(struct s_smc *smc, int mac);
66 static int phy_con_resource_index(struct s_smc *smc, int phy);
67 static void smt_send_rdf(struct s_smc *smc, SMbuf *rej, int fc, int reason,
68 int local);
69 static void smt_send_nif(struct s_smc *smc, const struct fddi_addr *dest,
70 int fc, u_long tid, int type, int local);
71 static void smt_send_ecf(struct s_smc *smc, struct fddi_addr *dest, int fc,
72 u_long tid, int type, int len);
73 static void smt_echo_test(struct s_smc *smc, int dna);
74 static void smt_send_sif_config(struct s_smc *smc, struct fddi_addr *dest,
75 u_long tid, int local);
76 static void smt_send_sif_operation(struct s_smc *smc, struct fddi_addr *dest,
77 u_long tid, int local);
78 #ifdef LITTLE_ENDIAN
79 static void smt_string_swap(char *data, const char *format, int len);
80 #endif
81 static void smt_add_frame_len(SMbuf *mb, int len);
82 static void smt_fill_una(struct s_smc *smc, struct smt_p_una *una);
83 static void smt_fill_sde(struct s_smc *smc, struct smt_p_sde *sde);
84 static void smt_fill_state(struct s_smc *smc, struct smt_p_state *state);
85 static void smt_fill_timestamp(struct s_smc *smc, struct smt_p_timestamp *ts);
86 static void smt_fill_policy(struct s_smc *smc, struct smt_p_policy *policy);
87 static void smt_fill_latency(struct s_smc *smc, struct smt_p_latency *latency);
88 static void smt_fill_neighbor(struct s_smc *smc, struct smt_p_neighbor *neighbor);
89 static int smt_fill_path(struct s_smc *smc, struct smt_p_path *path);
90 static void smt_fill_mac_status(struct s_smc *smc, struct smt_p_mac_status *st);
91 static void smt_fill_lem(struct s_smc *smc, struct smt_p_lem *lem, int phy);
92 static void smt_fill_version(struct s_smc *smc, struct smt_p_version *vers);
93 static void smt_fill_fsc(struct s_smc *smc, struct smt_p_fsc *fsc);
94 static void smt_fill_mac_counter(struct s_smc *smc, struct smt_p_mac_counter *mc);
95 static void smt_fill_mac_fnc(struct s_smc *smc, struct smt_p_mac_fnc *fnc);
96 static void smt_fill_manufacturer(struct s_smc *smc,
97 struct smp_p_manufacturer *man);
98 static void smt_fill_user(struct s_smc *smc, struct smp_p_user *user);
99 static void smt_fill_setcount(struct s_smc *smc, struct smt_p_setcount *setcount);
100 static void smt_fill_echo(struct s_smc *smc, struct smt_p_echo *echo, u_long seed,
101 int len);
102
103 static void smt_clear_una_dna(struct s_smc *smc);
104 static void smt_clear_old_una_dna(struct s_smc *smc);
105 #ifdef CONCENTRATOR
106 static int entity_to_index(void);
107 #endif
108 static void update_dac(struct s_smc *smc, int report);
109 static int div_ratio(u_long upper, u_long lower);
110 #ifdef USE_CAN_ADDR
111 static void hwm_conv_can(struct s_smc *smc, char *data, int len);
112 #else
113 #define hwm_conv_can(smc,data,len)
114 #endif
115
116
117 static inline int is_my_addr(const struct s_smc *smc,
118 const struct fddi_addr *addr)
119 {
120 return(*(short *)(&addr->a[0]) ==
121 *(short *)(&smc->mib.m[MAC0].fddiMACSMTAddress.a[0])
122 && *(short *)(&addr->a[2]) ==
123 *(short *)(&smc->mib.m[MAC0].fddiMACSMTAddress.a[2])
124 && *(short *)(&addr->a[4]) ==
125 *(short *)(&smc->mib.m[MAC0].fddiMACSMTAddress.a[4])) ;
126 }
127
128 static inline int is_broadcast(const struct fddi_addr *addr)
129 {
130 return *(u_short *)(&addr->a[0]) == 0xffff &&
131 *(u_short *)(&addr->a[2]) == 0xffff &&
132 *(u_short *)(&addr->a[4]) == 0xffff;
133 }
134
135 static inline int is_individual(const struct fddi_addr *addr)
136 {
137 return !(addr->a[0] & GROUP_ADDR);
138 }
139
140 static inline int is_equal(const struct fddi_addr *addr1,
141 const struct fddi_addr *addr2)
142 {
143 return *(u_short *)(&addr1->a[0]) == *(u_short *)(&addr2->a[0]) &&
144 *(u_short *)(&addr1->a[2]) == *(u_short *)(&addr2->a[2]) &&
145 *(u_short *)(&addr1->a[4]) == *(u_short *)(&addr2->a[4]);
146 }
147
148 /*
149 * list of mandatory paras in frames
150 */
151 static const u_short plist_nif[] = { SMT_P_UNA,SMT_P_SDE,SMT_P_STATE,0 } ;
152
153 /*
154 * init SMT agent
155 */
156 void smt_agent_init(struct s_smc *smc)
157 {
158 int i ;
159
160 /*
161 * get MAC address
162 */
163 smc->mib.m[MAC0].fddiMACSMTAddress = smc->hw.fddi_home_addr ;
164
165 /*
166 * get OUI address from driver (bia == built-in-address)
167 */
168 smc->mib.fddiSMTStationId.sid_oem[0] = 0 ;
169 smc->mib.fddiSMTStationId.sid_oem[1] = 0 ;
170 driver_get_bia(smc,&smc->mib.fddiSMTStationId.sid_node) ;
171 for (i = 0 ; i < 6 ; i ++) {
172 smc->mib.fddiSMTStationId.sid_node.a[i] =
173 bitrev8(smc->mib.fddiSMTStationId.sid_node.a[i]);
174 }
175 smc->mib.fddiSMTManufacturerData[0] =
176 smc->mib.fddiSMTStationId.sid_node.a[0] ;
177 smc->mib.fddiSMTManufacturerData[1] =
178 smc->mib.fddiSMTStationId.sid_node.a[1] ;
179 smc->mib.fddiSMTManufacturerData[2] =
180 smc->mib.fddiSMTStationId.sid_node.a[2] ;
181 smc->sm.smt_tid = 0 ;
182 smc->mib.m[MAC0].fddiMACDupAddressTest = DA_NONE ;
183 smc->mib.m[MAC0].fddiMACUNDA_Flag = FALSE ;
184 #ifndef SLIM_SMT
185 smt_clear_una_dna(smc) ;
186 smt_clear_old_una_dna(smc) ;
187 #endif
188 for (i = 0 ; i < SMT_MAX_TEST ; i++)
189 smc->sm.pend[i] = 0 ;
190 smc->sm.please_reconnect = 0 ;
191 smc->sm.uniq_ticks = 0 ;
192 }
193
194 /*
195 * SMT task
196 * forever
197 * delay 30 seconds
198 * send NIF
199 * check tvu & tvd
200 * end
201 */
202 void smt_agent_task(struct s_smc *smc)
203 {
204 smt_timer_start(smc,&smc->sm.smt_timer, (u_long)1000000L,
205 EV_TOKEN(EVENT_SMT,SM_TIMER)) ;
206 DB_SMT("SMT agent task\n",0,0) ;
207 }
208
209 #ifndef SMT_REAL_TOKEN_CT
210 void smt_emulate_token_ct(struct s_smc *smc, int mac_index)
211 {
212 u_long count;
213 u_long time;
214
215
216 time = smt_get_time();
217 count = ((time - smc->sm.last_tok_time[mac_index]) *
218 100)/TICKS_PER_SECOND;
219
220 /*
221 * Only when ring is up we will have a token count. The
222 * flag is unfortunately a single instance value. This
223 * doesn't matter now, because we currently have only
224 * one MAC instance.
225 */
226 if (smc->hw.mac_ring_is_up){
227 smc->mib.m[mac_index].fddiMACToken_Ct += count;
228 }
229
230 /* Remember current time */
231 smc->sm.last_tok_time[mac_index] = time;
232
233 }
234 #endif
235
236 /*ARGSUSED1*/
237 void smt_event(struct s_smc *smc, int event)
238 {
239 u_long time ;
240 #ifndef SMT_REAL_TOKEN_CT
241 int i ;
242 #endif
243
244
245 if (smc->sm.please_reconnect) {
246 smc->sm.please_reconnect -- ;
247 if (smc->sm.please_reconnect == 0) {
248 /* Counted down */
249 queue_event(smc,EVENT_ECM,EC_CONNECT) ;
250 }
251 }
252
253 if (event == SM_FAST)
254 return ;
255
256 /*
257 * timer for periodic cleanup in driver
258 * reset and start the watchdog (FM2)
259 * ESS timer
260 * SBA timer
261 */
262 smt_timer_poll(smc) ;
263 smt_start_watchdog(smc) ;
264 #ifndef SLIM_SMT
265 #ifndef BOOT
266 #ifdef ESS
267 ess_timer_poll(smc) ;
268 #endif
269 #endif
270 #ifdef SBA
271 sba_timer_poll(smc) ;
272 #endif
273
274 smt_srf_event(smc,0,0,0) ;
275
276 #endif /* no SLIM_SMT */
277
278 time = smt_get_time() ;
279
280 if (time - smc->sm.smt_last_lem >= TICKS_PER_SECOND*8) {
281 /*
282 * Use 8 sec. for the time intervall, it simplifies the
283 * LER estimation.
284 */
285 struct fddi_mib_m *mib ;
286 u_long upper ;
287 u_long lower ;
288 int cond ;
289 int port;
290 struct s_phy *phy ;
291 /*
292 * calculate LEM bit error rate
293 */
294 sm_lem_evaluate(smc) ;
295 smc->sm.smt_last_lem = time ;
296
297 /*
298 * check conditions
299 */
300 #ifndef SLIM_SMT
301 mac_update_counter(smc) ;
302 mib = smc->mib.m ;
303 upper =
304 (mib->fddiMACLost_Ct - mib->fddiMACOld_Lost_Ct) +
305 (mib->fddiMACError_Ct - mib->fddiMACOld_Error_Ct) ;
306 lower =
307 (mib->fddiMACFrame_Ct - mib->fddiMACOld_Frame_Ct) +
308 (mib->fddiMACLost_Ct - mib->fddiMACOld_Lost_Ct) ;
309 mib->fddiMACFrameErrorRatio = div_ratio(upper,lower) ;
310
311 cond =
312 ((!mib->fddiMACFrameErrorThreshold &&
313 mib->fddiMACError_Ct != mib->fddiMACOld_Error_Ct) ||
314 (mib->fddiMACFrameErrorRatio >
315 mib->fddiMACFrameErrorThreshold)) ;
316
317 if (cond != mib->fddiMACFrameErrorFlag)
318 smt_srf_event(smc,SMT_COND_MAC_FRAME_ERROR,
319 INDEX_MAC,cond) ;
320
321 upper =
322 (mib->fddiMACNotCopied_Ct - mib->fddiMACOld_NotCopied_Ct) ;
323 lower =
324 upper +
325 (mib->fddiMACCopied_Ct - mib->fddiMACOld_Copied_Ct) ;
326 mib->fddiMACNotCopiedRatio = div_ratio(upper,lower) ;
327
328 cond =
329 ((!mib->fddiMACNotCopiedThreshold &&
330 mib->fddiMACNotCopied_Ct !=
331 mib->fddiMACOld_NotCopied_Ct)||
332 (mib->fddiMACNotCopiedRatio >
333 mib->fddiMACNotCopiedThreshold)) ;
334
335 if (cond != mib->fddiMACNotCopiedFlag)
336 smt_srf_event(smc,SMT_COND_MAC_NOT_COPIED,
337 INDEX_MAC,cond) ;
338
339 /*
340 * set old values
341 */
342 mib->fddiMACOld_Frame_Ct = mib->fddiMACFrame_Ct ;
343 mib->fddiMACOld_Copied_Ct = mib->fddiMACCopied_Ct ;
344 mib->fddiMACOld_Error_Ct = mib->fddiMACError_Ct ;
345 mib->fddiMACOld_Lost_Ct = mib->fddiMACLost_Ct ;
346 mib->fddiMACOld_NotCopied_Ct = mib->fddiMACNotCopied_Ct ;
347
348 /*
349 * Check port EBError Condition
350 */
351 for (port = 0; port < NUMPHYS; port ++) {
352 phy = &smc->y[port] ;
353
354 if (!phy->mib->fddiPORTHardwarePresent) {
355 continue;
356 }
357
358 cond = (phy->mib->fddiPORTEBError_Ct -
359 phy->mib->fddiPORTOldEBError_Ct > 5) ;
360
361 /* If ratio is more than 5 in 8 seconds
362 * Set the condition.
363 */
364 smt_srf_event(smc,SMT_COND_PORT_EB_ERROR,
365 (int) (INDEX_PORT+ phy->np) ,cond) ;
366
367 /*
368 * set old values
369 */
370 phy->mib->fddiPORTOldEBError_Ct =
371 phy->mib->fddiPORTEBError_Ct ;
372 }
373
374 #endif /* no SLIM_SMT */
375 }
376
377 #ifndef SLIM_SMT
378
379 if (time - smc->sm.smt_last_notify >= (u_long)
380 (smc->mib.fddiSMTTT_Notify * TICKS_PER_SECOND) ) {
381 /*
382 * we can either send an announcement or a request
383 * a request will trigger a reply so that we can update
384 * our dna
385 * note: same tid must be used until reply is received
386 */
387 if (!smc->sm.pend[SMT_TID_NIF])
388 smc->sm.pend[SMT_TID_NIF] = smt_get_tid(smc) ;
389 smt_send_nif(smc,&fddi_broadcast, FC_SMT_NSA,
390 smc->sm.pend[SMT_TID_NIF], SMT_REQUEST,0) ;
391 smc->sm.smt_last_notify = time ;
392 }
393
394 /*
395 * check timer
396 */
397 if (smc->sm.smt_tvu &&
398 time - smc->sm.smt_tvu > 228*TICKS_PER_SECOND) {
399 DB_SMT("SMT : UNA expired\n",0,0) ;
400 smc->sm.smt_tvu = 0 ;
401
402 if (!is_equal(&smc->mib.m[MAC0].fddiMACUpstreamNbr,
403 &SMT_Unknown)){
404 /* Do not update unknown address */
405 smc->mib.m[MAC0].fddiMACOldUpstreamNbr=
406 smc->mib.m[MAC0].fddiMACUpstreamNbr ;
407 }
408 smc->mib.m[MAC0].fddiMACUpstreamNbr = SMT_Unknown ;
409 smc->mib.m[MAC0].fddiMACUNDA_Flag = FALSE ;
410 /*
411 * Make sure the fddiMACUNDA_Flag = FALSE is
412 * included in the SRF so we don't generate
413 * a separate SRF for the deassertion of this
414 * condition
415 */
416 update_dac(smc,0) ;
417 smt_srf_event(smc, SMT_EVENT_MAC_NEIGHBOR_CHANGE,
418 INDEX_MAC,0) ;
419 }
420 if (smc->sm.smt_tvd &&
421 time - smc->sm.smt_tvd > 228*TICKS_PER_SECOND) {
422 DB_SMT("SMT : DNA expired\n",0,0) ;
423 smc->sm.smt_tvd = 0 ;
424 if (!is_equal(&smc->mib.m[MAC0].fddiMACDownstreamNbr,
425 &SMT_Unknown)){
426 /* Do not update unknown address */
427 smc->mib.m[MAC0].fddiMACOldDownstreamNbr=
428 smc->mib.m[MAC0].fddiMACDownstreamNbr ;
429 }
430 smc->mib.m[MAC0].fddiMACDownstreamNbr = SMT_Unknown ;
431 smt_srf_event(smc, SMT_EVENT_MAC_NEIGHBOR_CHANGE,
432 INDEX_MAC,0) ;
433 }
434
435 #endif /* no SLIM_SMT */
436
437 #ifndef SMT_REAL_TOKEN_CT
438 /*
439 * Token counter emulation section. If hardware supports the token
440 * count, the token counter will be updated in mac_update_counter.
441 */
442 for (i = MAC0; i < NUMMACS; i++ ){
443 if (time - smc->sm.last_tok_time[i] > 2*TICKS_PER_SECOND ){
444 smt_emulate_token_ct( smc, i );
445 }
446 }
447 #endif
448
449 smt_timer_start(smc,&smc->sm.smt_timer, (u_long)1000000L,
450 EV_TOKEN(EVENT_SMT,SM_TIMER)) ;
451 }
452
453 static int div_ratio(u_long upper, u_long lower)
454 {
455 if ((upper<<16L) < upper)
456 upper = 0xffff0000L ;
457 else
458 upper <<= 16L ;
459 if (!lower)
460 return 0;
461 return (int)(upper/lower) ;
462 }
463
464 #ifndef SLIM_SMT
465
466 /*
467 * receive packet handler
468 */
469 void smt_received_pack(struct s_smc *smc, SMbuf *mb, int fs)
470 /* int fs; frame status */
471 {
472 struct smt_header *sm ;
473 int local ;
474
475 int illegal = 0 ;
476
477 switch (m_fc(mb)) {
478 case FC_SMT_INFO :
479 case FC_SMT_LAN_LOC :
480 case FC_SMT_LOC :
481 case FC_SMT_NSA :
482 break ;
483 default :
484 smt_free_mbuf(smc,mb) ;
485 return ;
486 }
487
488 smc->mib.m[MAC0].fddiMACSMTCopied_Ct++ ;
489 sm = smtod(mb,struct smt_header *) ;
490 local = ((fs & L_INDICATOR) != 0) ;
491 hwm_conv_can(smc,(char *)sm,12) ;
492
493 /* check destination address */
494 if (is_individual(&sm->smt_dest) && !is_my_addr(smc,&sm->smt_dest)) {
495 smt_free_mbuf(smc,mb) ;
496 return ;
497 }
498 #if 0 /* for DUP recognition, do NOT filter them */
499 /* ignore loop back packets */
500 if (is_my_addr(smc,&sm->smt_source) && !local) {
501 smt_free_mbuf(smc,mb) ;
502 return ;
503 }
504 #endif
505
506 smt_swap_para(sm,(int) mb->sm_len,1) ;
507 DB_SMT("SMT : received packet [%s] at 0x%x\n",
508 smt_type_name[m_fc(mb) & 0xf],sm) ;
509 DB_SMT("SMT : version %d, class %s\n",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\n",
528 addr_to_string(&sm->smt_source),0) ;
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\n",
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\n",sm->smt_len,0) ;
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\n",0,0) ;
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\n",
590 addr_to_string(&sm->smt_source),0) ;
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\n",
620 addr_to_string(&sm->smt_source),0) ;
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\n",
629 addr_to_string(&sm->smt_source),0) ;
630 if (fs & A_INDICATOR) {
631 smc->sm.pend[SMT_TID_NIF] = 0 ;
632 DB_SMT("SMT : duplicate address\n",0,0) ;
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\n",0,0) ;
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\n",0,0) ;
675 }
676 else {
677 DB_SMT("SMT : expected TID %lx, got %lx\n",
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\n",
690 addr_to_string(&sm->smt_source),0) ;
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\n",
697 addr_to_string(&sm->smt_source),0) ;
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\n",
705 addr_to_string(&sm->smt_source),0) ;
706 if (sm_to_para(smc,sm,SMT_P_ECHODATA) == NULL) {
707 DB_SMT("SMT: ECHODATA missing\n",0,0) ;
708 break ;
709 }
710 if (sm->smt_tid == smc->sm.pend[SMT_TID_ECF]) {
711 DB_SMT("SMT : ECF test TID ok\n",0,0) ;
712 }
713 else if (sm->smt_tid == smc->sm.pend[SMT_TID_ECF_UNA]) {
714 DB_SMT("SMT : ECF test UNA ok\n",0,0) ;
715 }
716 else if (sm->smt_tid == smc->sm.pend[SMT_TID_ECF_DNA]) {
717 DB_SMT("SMT : ECF test DNA ok\n",0,0) ;
718 }
719 else {
720 DB_SMT("SMT : expected TID %lx, got %lx\n",
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\n",0,0) ;
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\n",
735 addr_to_string(&sm->smt_source),0) ;
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\n",0,0) ;
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\n",0,0) ;
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\n",0,0) ;
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\n",
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\n",
810 illegal,0) ;
811 }
812 smt_free_mbuf(smc,mb) ;
813 }
814
815 static void update_dac(struct s_smc *smc, int report)
816 {
817 int cond ;
818
819 cond = ( smc->mib.m[MAC0].fddiMACUNDA_Flag |
820 smc->mib.m[MAC0].fddiMACDA_Flag) != 0 ;
821 if (report && (cond != smc->mib.m[MAC0].fddiMACDuplicateAddressCond))
822 smt_srf_event(smc, SMT_COND_MAC_DUP_ADDR,INDEX_MAC,cond) ;
823 else
824 smc->mib.m[MAC0].fddiMACDuplicateAddressCond = cond ;
825 }
826
827 /*
828 * send SMT frame
829 * set source address
830 * set station ID
831 * send frame
832 */
833 void smt_send_frame(struct s_smc *smc, SMbuf *mb, int fc, int local)
834 /* SMbuf *mb; buffer to send */
835 /* int fc; FC value */
836 {
837 struct smt_header *sm ;
838
839 if (!smc->r.sm_ma_avail && !local) {
840 smt_free_mbuf(smc,mb) ;
841 return ;
842 }
843 sm = smtod(mb,struct smt_header *) ;
844 sm->smt_source = smc->mib.m[MAC0].fddiMACSMTAddress ;
845 sm->smt_sid = smc->mib.fddiSMTStationId ;
846
847 smt_swap_para(sm,(int) mb->sm_len,0) ; /* swap para & header */
848 hwm_conv_can(smc,(char *)sm,12) ; /* convert SA and DA */
849 smc->mib.m[MAC0].fddiMACSMTTransmit_Ct++ ;
850 smt_send_mbuf(smc,mb,local ? FC_SMT_LOC : fc) ;
851 }
852
853 /*
854 * generate and send RDF
855 */
856 static void smt_send_rdf(struct s_smc *smc, SMbuf *rej, int fc, int reason,
857 int local)
858 /* SMbuf *rej; mbuf of offending frame */
859 /* int fc; FC of denied frame */
860 /* int reason; reason code */
861 {
862 SMbuf *mb ;
863 struct smt_header *sm ; /* header of offending frame */
864 struct smt_rdf *rdf ;
865 int len ;
866 int frame_len ;
867
868 sm = smtod(rej,struct smt_header *) ;
869 if (sm->smt_type != SMT_REQUEST)
870 return ;
871
872 DB_SMT("SMT: sending RDF to %s,reason = 0x%x\n",
873 addr_to_string(&sm->smt_source),reason) ;
874
875
876 /*
877 * note: get framelength from MAC length, NOT from SMT header
878 * smt header length is included in sm_len
879 */
880 frame_len = rej->sm_len ;
881
882 if (!(mb=smt_build_frame(smc,SMT_RDF,SMT_REPLY,sizeof(struct smt_rdf))))
883 return ;
884 rdf = smtod(mb,struct smt_rdf *) ;
885 rdf->smt.smt_tid = sm->smt_tid ; /* use TID from sm */
886 rdf->smt.smt_dest = sm->smt_source ; /* set dest = source */
887
888 /* set P12 */
889 rdf->reason.para.p_type = SMT_P_REASON ;
890 rdf->reason.para.p_len = sizeof(struct smt_p_reason) - PARA_LEN ;
891 rdf->reason.rdf_reason = reason ;
892
893 /* set P14 */
894 rdf->version.para.p_type = SMT_P_VERSION ;
895 rdf->version.para.p_len = sizeof(struct smt_p_version) - PARA_LEN ;
896 rdf->version.v_pad = 0 ;
897 rdf->version.v_n = 1 ;
898 rdf->version.v_index = 1 ;
899 rdf->version.v_version[0] = SMT_VID_2 ;
900 rdf->version.v_pad2 = 0 ;
901
902 /* set P13 */
903 if ((unsigned int) frame_len <= SMT_MAX_INFO_LEN - sizeof(*rdf) +
904 2*sizeof(struct smt_header))
905 len = frame_len ;
906 else
907 len = SMT_MAX_INFO_LEN - sizeof(*rdf) +
908 2*sizeof(struct smt_header) ;
909 /* make length multiple of 4 */
910 len &= ~3 ;
911 rdf->refused.para.p_type = SMT_P_REFUSED ;
912 /* length of para is smt_frame + ref_fc */
913 rdf->refused.para.p_len = len + 4 ;
914 rdf->refused.ref_fc = fc ;
915
916 /* swap it back */
917 smt_swap_para(sm,frame_len,0) ;
918
919 memcpy((char *) &rdf->refused.ref_header,(char *) sm,len) ;
920
921 len -= sizeof(struct smt_header) ;
922 mb->sm_len += len ;
923 rdf->smt.smt_len += len ;
924
925 dump_smt(smc,(struct smt_header *)rdf,"RDF") ;
926 smc->mib.priv.fddiPRIVRDF_Tx++ ;
927 smt_send_frame(smc,mb,FC_SMT_INFO,local) ;
928 }
929
930 /*
931 * generate and send NIF
932 */
933 static void smt_send_nif(struct s_smc *smc, const struct fddi_addr *dest,
934 int fc, u_long tid, int type, int local)
935 /* struct fddi_addr *dest; dest address */
936 /* int fc; frame control */
937 /* u_long tid; transaction id */
938 /* int type; frame type */
939 {
940 struct smt_nif *nif ;
941 SMbuf *mb ;
942
943 if (!(mb = smt_build_frame(smc,SMT_NIF,type,sizeof(struct smt_nif))))
944 return ;
945 nif = smtod(mb, struct smt_nif *) ;
946 smt_fill_una(smc,&nif->una) ; /* set UNA */
947 smt_fill_sde(smc,&nif->sde) ; /* set station descriptor */
948 smt_fill_state(smc,&nif->state) ; /* set state information */
949 #ifdef SMT6_10
950 smt_fill_fsc(smc,&nif->fsc) ; /* set frame status cap. */
951 #endif
952 nif->smt.smt_dest = *dest ; /* destination address */
953 nif->smt.smt_tid = tid ; /* transaction ID */
954 dump_smt(smc,(struct smt_header *)nif,"NIF") ;
955 smt_send_frame(smc,mb,fc,local) ;
956 }
957
958 #ifdef DEBUG
959 /*
960 * send NIF request (test purpose)
961 */
962 static void smt_send_nif_request(struct s_smc *smc, struct fddi_addr *dest)
963 {
964 smc->sm.pend[SMT_TID_NIF_TEST] = smt_get_tid(smc) ;
965 smt_send_nif(smc,dest, FC_SMT_INFO, smc->sm.pend[SMT_TID_NIF_TEST],
966 SMT_REQUEST,0) ;
967 }
968
969 /*
970 * send ECF request (test purpose)
971 */
972 static void smt_send_ecf_request(struct s_smc *smc, struct fddi_addr *dest,
973 int len)
974 {
975 smc->sm.pend[SMT_TID_ECF] = smt_get_tid(smc) ;
976 smt_send_ecf(smc,dest, FC_SMT_INFO, smc->sm.pend[SMT_TID_ECF],
977 SMT_REQUEST,len) ;
978 }
979 #endif
980
981 /*
982 * echo test
983 */
984 static void smt_echo_test(struct s_smc *smc, int dna)
985 {
986 u_long tid ;
987
988 smc->sm.pend[dna ? SMT_TID_ECF_DNA : SMT_TID_ECF_UNA] =
989 tid = smt_get_tid(smc) ;
990 smt_send_ecf(smc, dna ?
991 &smc->mib.m[MAC0].fddiMACDownstreamNbr :
992 &smc->mib.m[MAC0].fddiMACUpstreamNbr,
993 FC_SMT_INFO,tid, SMT_REQUEST, (SMT_TEST_ECHO_LEN & ~3)-8) ;
994 }
995
996 /*
997 * generate and send ECF
998 */
999 static void smt_send_ecf(struct s_smc *smc, struct fddi_addr *dest, int fc,
1000 u_long tid, int type, int len)
1001 /* struct fddi_addr *dest; dest address */
1002 /* int fc; frame control */
1003 /* u_long tid; transaction id */
1004 /* int type; frame type */
1005 /* int len; frame length */
1006 {
1007 struct smt_ecf *ecf ;
1008 SMbuf *mb ;
1009
1010 if (!(mb = smt_build_frame(smc,SMT_ECF,type,SMT_ECF_LEN + len)))
1011 return ;
1012 ecf = smtod(mb, struct smt_ecf *) ;
1013
1014 smt_fill_echo(smc,&ecf->ec_echo,tid,len) ; /* set ECHO */
1015 ecf->smt.smt_dest = *dest ; /* destination address */
1016 ecf->smt.smt_tid = tid ; /* transaction ID */
1017 smc->mib.priv.fddiPRIVECF_Req_Tx++ ;
1018 smt_send_frame(smc,mb,fc,0) ;
1019 }
1020
1021 /*
1022 * generate and send SIF config response
1023 */
1024
1025 static void smt_send_sif_config(struct s_smc *smc, struct fddi_addr *dest,
1026 u_long tid, int local)
1027 /* struct fddi_addr *dest; dest address */
1028 /* u_long tid; transaction id */
1029 {
1030 struct smt_sif_config *sif ;
1031 SMbuf *mb ;
1032 int len ;
1033 if (!(mb = smt_build_frame(smc,SMT_SIF_CONFIG,SMT_REPLY,
1034 SIZEOF_SMT_SIF_CONFIG)))
1035 return ;
1036
1037 sif = smtod(mb, struct smt_sif_config *) ;
1038 smt_fill_timestamp(smc,&sif->ts) ; /* set time stamp */
1039 smt_fill_sde(smc,&sif->sde) ; /* set station descriptor */
1040 smt_fill_version(smc,&sif->version) ; /* set version information */
1041 smt_fill_state(smc,&sif->state) ; /* set state information */
1042 smt_fill_policy(smc,&sif->policy) ; /* set station policy */
1043 smt_fill_latency(smc,&sif->latency); /* set station latency */
1044 smt_fill_neighbor(smc,&sif->neighbor); /* set station neighbor */
1045 smt_fill_setcount(smc,&sif->setcount) ; /* set count */
1046 len = smt_fill_path(smc,&sif->path); /* set station path descriptor*/
1047 sif->smt.smt_dest = *dest ; /* destination address */
1048 sif->smt.smt_tid = tid ; /* transaction ID */
1049 smt_add_frame_len(mb,len) ; /* adjust length fields */
1050 dump_smt(smc,(struct smt_header *)sif,"SIF Configuration Reply") ;
1051 smt_send_frame(smc,mb,FC_SMT_INFO,local) ;
1052 }
1053
1054 /*
1055 * generate and send SIF operation response
1056 */
1057
1058 static void smt_send_sif_operation(struct s_smc *smc, struct fddi_addr *dest,
1059 u_long tid, int local)
1060 /* struct fddi_addr *dest; dest address */
1061 /* u_long tid; transaction id */
1062 {
1063 struct smt_sif_operation *sif ;
1064 SMbuf *mb ;
1065 int ports ;
1066 int i ;
1067
1068 ports = NUMPHYS ;
1069 #ifndef CONCENTRATOR
1070 if (smc->s.sas == SMT_SAS)
1071 ports = 1 ;
1072 #endif
1073
1074 if (!(mb = smt_build_frame(smc,SMT_SIF_OPER,SMT_REPLY,
1075 SIZEOF_SMT_SIF_OPERATION+ports*sizeof(struct smt_p_lem))))
1076 return ;
1077 sif = smtod(mb, struct smt_sif_operation *) ;
1078 smt_fill_timestamp(smc,&sif->ts) ; /* set time stamp */
1079 smt_fill_mac_status(smc,&sif->status) ; /* set mac status */
1080 smt_fill_mac_counter(smc,&sif->mc) ; /* set mac counter field */
1081 smt_fill_mac_fnc(smc,&sif->fnc) ; /* set frame not copied counter */
1082 smt_fill_manufacturer(smc,&sif->man) ; /* set manufacturer field */
1083 smt_fill_user(smc,&sif->user) ; /* set user field */
1084 smt_fill_setcount(smc,&sif->setcount) ; /* set count */
1085 /*
1086 * set link error mon information
1087 */
1088 if (ports == 1) {
1089 smt_fill_lem(smc,sif->lem,PS) ;
1090 }
1091 else {
1092 for (i = 0 ; i < ports ; i++) {
1093 smt_fill_lem(smc,&sif->lem[i],i) ;
1094 }
1095 }
1096
1097 sif->smt.smt_dest = *dest ; /* destination address */
1098 sif->smt.smt_tid = tid ; /* transaction ID */
1099 dump_smt(smc,(struct smt_header *)sif,"SIF Operation Reply") ;
1100 smt_send_frame(smc,mb,FC_SMT_INFO,local) ;
1101 }
1102
1103 /*
1104 * get and initialize SMT frame
1105 */
1106 SMbuf *smt_build_frame(struct s_smc *smc, int class, int type,
1107 int length)
1108 {
1109 SMbuf *mb ;
1110 struct smt_header *smt ;
1111
1112 #if 0
1113 if (!smc->r.sm_ma_avail) {
1114 return 0;
1115 }
1116 #endif
1117 if (!(mb = smt_get_mbuf(smc)))
1118 return mb;
1119
1120 mb->sm_len = length ;
1121 smt = smtod(mb, struct smt_header *) ;
1122 smt->smt_dest = fddi_broadcast ; /* set dest = broadcast */
1123 smt->smt_class = class ;
1124 smt->smt_type = type ;
1125 switch (class) {
1126 case SMT_NIF :
1127 case SMT_SIF_CONFIG :
1128 case SMT_SIF_OPER :
1129 case SMT_ECF :
1130 smt->smt_version = SMT_VID ;
1131 break ;
1132 default :
1133 smt->smt_version = SMT_VID_2 ;
1134 break ;
1135 }
1136 smt->smt_tid = smt_get_tid(smc) ; /* set transaction ID */
1137 smt->smt_pad = 0 ;
1138 smt->smt_len = length - sizeof(struct smt_header) ;
1139 return mb;
1140 }
1141
1142 static void smt_add_frame_len(SMbuf *mb, int len)
1143 {
1144 struct smt_header *smt ;
1145
1146 smt = smtod(mb, struct smt_header *) ;
1147 smt->smt_len += len ;
1148 mb->sm_len += len ;
1149 }
1150
1151
1152
1153 /*
1154 * fill values in UNA parameter
1155 */
1156 static void smt_fill_una(struct s_smc *smc, struct smt_p_una *una)
1157 {
1158 SMTSETPARA(una,SMT_P_UNA) ;
1159 una->una_pad = 0 ;
1160 una->una_node = smc->mib.m[MAC0].fddiMACUpstreamNbr ;
1161 }
1162
1163 /*
1164 * fill values in SDE parameter
1165 */
1166 static void smt_fill_sde(struct s_smc *smc, struct smt_p_sde *sde)
1167 {
1168 SMTSETPARA(sde,SMT_P_SDE) ;
1169 sde->sde_non_master = smc->mib.fddiSMTNonMaster_Ct ;
1170 sde->sde_master = smc->mib.fddiSMTMaster_Ct ;
1171 sde->sde_mac_count = NUMMACS ; /* only 1 MAC */
1172 #ifdef CONCENTRATOR
1173 sde->sde_type = SMT_SDE_CONCENTRATOR ;
1174 #else
1175 sde->sde_type = SMT_SDE_STATION ;
1176 #endif
1177 }
1178
1179 /*
1180 * fill in values in station state parameter
1181 */
1182 static void smt_fill_state(struct s_smc *smc, struct smt_p_state *state)
1183 {
1184 int top ;
1185 int twist ;
1186
1187 SMTSETPARA(state,SMT_P_STATE) ;
1188 state->st_pad = 0 ;
1189
1190 /* determine topology */
1191 top = 0 ;
1192 if (smc->mib.fddiSMTPeerWrapFlag) {
1193 top |= SMT_ST_WRAPPED ; /* state wrapped */
1194 }
1195 #ifdef CONCENTRATOR
1196 if (cfm_status_unattached(smc)) {
1197 top |= SMT_ST_UNATTACHED ; /* unattached concentrator */
1198 }
1199 #endif
1200 if ((twist = pcm_status_twisted(smc)) & 1) {
1201 top |= SMT_ST_TWISTED_A ; /* twisted cable */
1202 }
1203 if (twist & 2) {
1204 top |= SMT_ST_TWISTED_B ; /* twisted cable */
1205 }
1206 #ifdef OPT_SRF
1207 top |= SMT_ST_SRF ;
1208 #endif
1209 if (pcm_rooted_station(smc))
1210 top |= SMT_ST_ROOTED_S ;
1211 if (smc->mib.a[0].fddiPATHSbaPayload != 0)
1212 top |= SMT_ST_SYNC_SERVICE ;
1213 state->st_topology = top ;
1214 state->st_dupl_addr =
1215 ((smc->mib.m[MAC0].fddiMACDA_Flag ? SMT_ST_MY_DUPA : 0 ) |
1216 (smc->mib.m[MAC0].fddiMACUNDA_Flag ? SMT_ST_UNA_DUPA : 0)) ;
1217 }
1218
1219 /*
1220 * fill values in timestamp parameter
1221 */
1222 static void smt_fill_timestamp(struct s_smc *smc, struct smt_p_timestamp *ts)
1223 {
1224
1225 SMTSETPARA(ts,SMT_P_TIMESTAMP) ;
1226 smt_set_timestamp(smc,ts->ts_time) ;
1227 }
1228
1229 void smt_set_timestamp(struct s_smc *smc, u_char *p)
1230 {
1231 u_long time ;
1232 u_long utime ;
1233
1234 /*
1235 * timestamp is 64 bits long ; resolution is 80 nS
1236 * our clock resolution is 10mS
1237 * 10mS/80ns = 125000 ~ 2^17 = 131072
1238 */
1239 utime = smt_get_time() ;
1240 time = utime * 100 ;
1241 time /= TICKS_PER_SECOND ;
1242 p[0] = 0 ;
1243 p[1] = (u_char)((time>>(8+8+8+8-1)) & 1) ;
1244 p[2] = (u_char)(time>>(8+8+8-1)) ;
1245 p[3] = (u_char)(time>>(8+8-1)) ;
1246 p[4] = (u_char)(time>>(8-1)) ;
1247 p[5] = (u_char)(time<<1) ;
1248 p[6] = (u_char)(smc->sm.uniq_ticks>>8) ;
1249 p[7] = (u_char)smc->sm.uniq_ticks ;
1250 /*
1251 * make sure we don't wrap: restart whenever the upper digits change
1252 */
1253 if (utime != smc->sm.uniq_time) {
1254 smc->sm.uniq_ticks = 0 ;
1255 }
1256 smc->sm.uniq_ticks++ ;
1257 smc->sm.uniq_time = utime ;
1258 }
1259
1260 /*
1261 * fill values in station policy parameter
1262 */
1263 static void smt_fill_policy(struct s_smc *smc, struct smt_p_policy *policy)
1264 {
1265 int i ;
1266 const u_char *map ;
1267 u_short in ;
1268 u_short out ;
1269
1270 /*
1271 * MIB para 101b (fddiSMTConnectionPolicy) coding
1272 * is different from 0005 coding
1273 */
1274 static const u_char ansi_weirdness[16] = {
1275 0,7,5,3,8,1,6,4,9,10,2,11,12,13,14,15
1276 } ;
1277 SMTSETPARA(policy,SMT_P_POLICY) ;
1278
1279 out = 0 ;
1280 in = smc->mib.fddiSMTConnectionPolicy ;
1281 for (i = 0, map = ansi_weirdness ; i < 16 ; i++) {
1282 if (in & 1)
1283 out |= (1<<*map) ;
1284 in >>= 1 ;
1285 map++ ;
1286 }
1287 policy->pl_config = smc->mib.fddiSMTConfigPolicy ;
1288 policy->pl_connect = out ;
1289 }
1290
1291 /*
1292 * fill values in latency equivalent parameter
1293 */
1294 static void smt_fill_latency(struct s_smc *smc, struct smt_p_latency *latency)
1295 {
1296 SMTSETPARA(latency,SMT_P_LATENCY) ;
1297
1298 latency->lt_phyout_idx1 = phy_index(smc,0) ;
1299 latency->lt_latency1 = 10 ; /* in octets (byte clock) */
1300 /*
1301 * note: latency has two phy entries by definition
1302 * for a SAS, the 2nd one is null
1303 */
1304 if (smc->s.sas == SMT_DAS) {
1305 latency->lt_phyout_idx2 = phy_index(smc,1) ;
1306 latency->lt_latency2 = 10 ; /* in octets (byte clock) */
1307 }
1308 else {
1309 latency->lt_phyout_idx2 = 0 ;
1310 latency->lt_latency2 = 0 ;
1311 }
1312 }
1313
1314 /*
1315 * fill values in MAC neighbors parameter
1316 */
1317 static void smt_fill_neighbor(struct s_smc *smc, struct smt_p_neighbor *neighbor)
1318 {
1319 SMTSETPARA(neighbor,SMT_P_NEIGHBORS) ;
1320
1321 neighbor->nb_mib_index = INDEX_MAC ;
1322 neighbor->nb_mac_index = mac_index(smc,1) ;
1323 neighbor->nb_una = smc->mib.m[MAC0].fddiMACUpstreamNbr ;
1324 neighbor->nb_dna = smc->mib.m[MAC0].fddiMACDownstreamNbr ;
1325 }
1326
1327 /*
1328 * fill values in path descriptor
1329 */
1330 #ifdef CONCENTRATOR
1331 #define ALLPHYS NUMPHYS
1332 #else
1333 #define ALLPHYS ((smc->s.sas == SMT_SAS) ? 1 : 2)
1334 #endif
1335
1336 static int smt_fill_path(struct s_smc *smc, struct smt_p_path *path)
1337 {
1338 SK_LOC_DECL(int,type) ;
1339 SK_LOC_DECL(int,state) ;
1340 SK_LOC_DECL(int,remote) ;
1341 SK_LOC_DECL(int,mac) ;
1342 int len ;
1343 int p ;
1344 int physp ;
1345 struct smt_phy_rec *phy ;
1346 struct smt_mac_rec *pd_mac ;
1347
1348 len = PARA_LEN +
1349 sizeof(struct smt_mac_rec) * NUMMACS +
1350 sizeof(struct smt_phy_rec) * ALLPHYS ;
1351 path->para.p_type = SMT_P_PATH ;
1352 path->para.p_len = len - PARA_LEN ;
1353
1354 /* PHYs */
1355 for (p = 0,phy = path->pd_phy ; p < ALLPHYS ; p++, phy++) {
1356 physp = p ;
1357 #ifndef CONCENTRATOR
1358 if (smc->s.sas == SMT_SAS)
1359 physp = PS ;
1360 #endif
1361 pcm_status_state(smc,physp,&type,&state,&remote,&mac) ;
1362 #ifdef LITTLE_ENDIAN
1363 phy->phy_mib_index = smt_swap_short((u_short)p+INDEX_PORT) ;
1364 #else
1365 phy->phy_mib_index = p+INDEX_PORT ;
1366 #endif
1367 phy->phy_type = type ;
1368 phy->phy_connect_state = state ;
1369 phy->phy_remote_type = remote ;
1370 phy->phy_remote_mac = mac ;
1371 phy->phy_resource_idx = phy_con_resource_index(smc,p) ;
1372 }
1373
1374 /* MAC */
1375 pd_mac = (struct smt_mac_rec *) phy ;
1376 pd_mac->mac_addr = smc->mib.m[MAC0].fddiMACSMTAddress ;
1377 pd_mac->mac_resource_idx = mac_con_resource_index(smc,1) ;
1378 return len;
1379 }
1380
1381 /*
1382 * fill values in mac status
1383 */
1384 static void smt_fill_mac_status(struct s_smc *smc, struct smt_p_mac_status *st)
1385 {
1386 SMTSETPARA(st,SMT_P_MAC_STATUS) ;
1387
1388 st->st_mib_index = INDEX_MAC ;
1389 st->st_mac_index = mac_index(smc,1) ;
1390
1391 mac_update_counter(smc) ;
1392 /*
1393 * timer values are represented in SMT as 2's complement numbers
1394 * units : internal : 2's complement BCLK
1395 */
1396 st->st_t_req = smc->mib.m[MAC0].fddiMACT_Req ;
1397 st->st_t_neg = smc->mib.m[MAC0].fddiMACT_Neg ;
1398 st->st_t_max = smc->mib.m[MAC0].fddiMACT_Max ;
1399 st->st_tvx_value = smc->mib.m[MAC0].fddiMACTvxValue ;
1400 st->st_t_min = smc->mib.m[MAC0].fddiMACT_Min ;
1401
1402 st->st_sba = smc->mib.a[PATH0].fddiPATHSbaPayload ;
1403 st->st_frame_ct = smc->mib.m[MAC0].fddiMACFrame_Ct ;
1404 st->st_error_ct = smc->mib.m[MAC0].fddiMACError_Ct ;
1405 st->st_lost_ct = smc->mib.m[MAC0].fddiMACLost_Ct ;
1406 }
1407
1408 /*
1409 * fill values in LEM status
1410 */
1411 static void smt_fill_lem(struct s_smc *smc, struct smt_p_lem *lem, int phy)
1412 {
1413 struct fddi_mib_p *mib ;
1414
1415 mib = smc->y[phy].mib ;
1416
1417 SMTSETPARA(lem,SMT_P_LEM) ;
1418 lem->lem_mib_index = phy+INDEX_PORT ;
1419 lem->lem_phy_index = phy_index(smc,phy) ;
1420 lem->lem_pad2 = 0 ;
1421 lem->lem_cutoff = mib->fddiPORTLer_Cutoff ;
1422 lem->lem_alarm = mib->fddiPORTLer_Alarm ;
1423 /* long term bit error rate */
1424 lem->lem_estimate = mib->fddiPORTLer_Estimate ;
1425 /* # of rejected connections */
1426 lem->lem_reject_ct = mib->fddiPORTLem_Reject_Ct ;
1427 lem->lem_ct = mib->fddiPORTLem_Ct ; /* total number of errors */
1428 }
1429
1430 /*
1431 * fill version parameter
1432 */
1433 static void smt_fill_version(struct s_smc *smc, struct smt_p_version *vers)
1434 {
1435 SK_UNUSED(smc) ;
1436 SMTSETPARA(vers,SMT_P_VERSION) ;
1437 vers->v_pad = 0 ;
1438 vers->v_n = 1 ; /* one version is enough .. */
1439 vers->v_index = 1 ;
1440 vers->v_version[0] = SMT_VID_2 ;
1441 vers->v_pad2 = 0 ;
1442 }
1443
1444 #ifdef SMT6_10
1445 /*
1446 * fill frame status capabilities
1447 */
1448 /*
1449 * note: this para 200B is NOT in swap table, because it's also set in
1450 * PMF add_para
1451 */
1452 static void smt_fill_fsc(struct s_smc *smc, struct smt_p_fsc *fsc)
1453 {
1454 SK_UNUSED(smc) ;
1455 SMTSETPARA(fsc,SMT_P_FSC) ;
1456 fsc->fsc_pad0 = 0 ;
1457 fsc->fsc_mac_index = INDEX_MAC ; /* this is MIB ; MIB is NOT
1458 * mac_index ()i !
1459 */
1460 fsc->fsc_pad1 = 0 ;
1461 fsc->fsc_value = FSC_TYPE0 ; /* "normal" node */
1462 #ifdef LITTLE_ENDIAN
1463 fsc->fsc_mac_index = smt_swap_short(INDEX_MAC) ;
1464 fsc->fsc_value = smt_swap_short(FSC_TYPE0) ;
1465 #endif
1466 }
1467 #endif
1468
1469 /*
1470 * fill mac counter field
1471 */
1472 static void smt_fill_mac_counter(struct s_smc *smc, struct smt_p_mac_counter *mc)
1473 {
1474 SMTSETPARA(mc,SMT_P_MAC_COUNTER) ;
1475 mc->mc_mib_index = INDEX_MAC ;
1476 mc->mc_index = mac_index(smc,1) ;
1477 mc->mc_receive_ct = smc->mib.m[MAC0].fddiMACCopied_Ct ;
1478 mc->mc_transmit_ct = smc->mib.m[MAC0].fddiMACTransmit_Ct ;
1479 }
1480
1481 /*
1482 * fill mac frame not copied counter
1483 */
1484 static void smt_fill_mac_fnc(struct s_smc *smc, struct smt_p_mac_fnc *fnc)
1485 {
1486 SMTSETPARA(fnc,SMT_P_MAC_FNC) ;
1487 fnc->nc_mib_index = INDEX_MAC ;
1488 fnc->nc_index = mac_index(smc,1) ;
1489 fnc->nc_counter = smc->mib.m[MAC0].fddiMACNotCopied_Ct ;
1490 }
1491
1492
1493 /*
1494 * fill manufacturer field
1495 */
1496 static void smt_fill_manufacturer(struct s_smc *smc,
1497 struct smp_p_manufacturer *man)
1498 {
1499 SMTSETPARA(man,SMT_P_MANUFACTURER) ;
1500 memcpy((char *) man->mf_data,
1501 (char *) smc->mib.fddiSMTManufacturerData,
1502 sizeof(man->mf_data)) ;
1503 }
1504
1505 /*
1506 * fill user field
1507 */
1508 static void smt_fill_user(struct s_smc *smc, struct smp_p_user *user)
1509 {
1510 SMTSETPARA(user,SMT_P_USER) ;
1511 memcpy((char *) user->us_data,
1512 (char *) smc->mib.fddiSMTUserData,
1513 sizeof(user->us_data)) ;
1514 }
1515
1516 /*
1517 * fill set count
1518 */
1519 static void smt_fill_setcount(struct s_smc *smc, struct smt_p_setcount *setcount)
1520 {
1521 SK_UNUSED(smc) ;
1522 SMTSETPARA(setcount,SMT_P_SETCOUNT) ;
1523 setcount->count = smc->mib.fddiSMTSetCount.count ;
1524 memcpy((char *)setcount->timestamp,
1525 (char *)smc->mib.fddiSMTSetCount.timestamp,8) ;
1526 }
1527
1528 /*
1529 * fill echo data
1530 */
1531 static void smt_fill_echo(struct s_smc *smc, struct smt_p_echo *echo, u_long seed,
1532 int len)
1533 {
1534 u_char *p ;
1535
1536 SK_UNUSED(smc) ;
1537 SMTSETPARA(echo,SMT_P_ECHODATA) ;
1538 echo->para.p_len = len ;
1539 for (p = echo->ec_data ; len ; len--) {
1540 *p++ = (u_char) seed ;
1541 seed += 13 ;
1542 }
1543 }
1544
1545 /*
1546 * clear DNA and UNA
1547 * called from CFM if configuration changes
1548 */
1549 static void smt_clear_una_dna(struct s_smc *smc)
1550 {
1551 smc->mib.m[MAC0].fddiMACUpstreamNbr = SMT_Unknown ;
1552 smc->mib.m[MAC0].fddiMACDownstreamNbr = SMT_Unknown ;
1553 }
1554
1555 static void smt_clear_old_una_dna(struct s_smc *smc)
1556 {
1557 smc->mib.m[MAC0].fddiMACOldUpstreamNbr = SMT_Unknown ;
1558 smc->mib.m[MAC0].fddiMACOldDownstreamNbr = SMT_Unknown ;
1559 }
1560
1561 u_long smt_get_tid(struct s_smc *smc)
1562 {
1563 u_long tid ;
1564 while ((tid = ++(smc->sm.smt_tid) ^ SMT_TID_MAGIC) == 0)
1565 ;
1566 return tid & 0x3fffffffL;
1567 }
1568
1569
1570 /*
1571 * table of parameter lengths
1572 */
1573 static const struct smt_pdef {
1574 int ptype ;
1575 int plen ;
1576 const char *pswap ;
1577 } smt_pdef[] = {
1578 { SMT_P_UNA, sizeof(struct smt_p_una) ,
1579 SWAP_SMT_P_UNA } ,
1580 { SMT_P_SDE, sizeof(struct smt_p_sde) ,
1581 SWAP_SMT_P_SDE } ,
1582 { SMT_P_STATE, sizeof(struct smt_p_state) ,
1583 SWAP_SMT_P_STATE } ,
1584 { SMT_P_TIMESTAMP,sizeof(struct smt_p_timestamp) ,
1585 SWAP_SMT_P_TIMESTAMP } ,
1586 { SMT_P_POLICY, sizeof(struct smt_p_policy) ,
1587 SWAP_SMT_P_POLICY } ,
1588 { SMT_P_LATENCY, sizeof(struct smt_p_latency) ,
1589 SWAP_SMT_P_LATENCY } ,
1590 { SMT_P_NEIGHBORS,sizeof(struct smt_p_neighbor) ,
1591 SWAP_SMT_P_NEIGHBORS } ,
1592 { SMT_P_PATH, sizeof(struct smt_p_path) ,
1593 SWAP_SMT_P_PATH } ,
1594 { SMT_P_MAC_STATUS,sizeof(struct smt_p_mac_status) ,
1595 SWAP_SMT_P_MAC_STATUS } ,
1596 { SMT_P_LEM, sizeof(struct smt_p_lem) ,
1597 SWAP_SMT_P_LEM } ,
1598 { SMT_P_MAC_COUNTER,sizeof(struct smt_p_mac_counter) ,
1599 SWAP_SMT_P_MAC_COUNTER } ,
1600 { SMT_P_MAC_FNC,sizeof(struct smt_p_mac_fnc) ,
1601 SWAP_SMT_P_MAC_FNC } ,
1602 { SMT_P_PRIORITY,sizeof(struct smt_p_priority) ,
1603 SWAP_SMT_P_PRIORITY } ,
1604 { SMT_P_EB,sizeof(struct smt_p_eb) ,
1605 SWAP_SMT_P_EB } ,
1606 { SMT_P_MANUFACTURER,sizeof(struct smp_p_manufacturer) ,
1607 SWAP_SMT_P_MANUFACTURER } ,
1608 { SMT_P_REASON, sizeof(struct smt_p_reason) ,
1609 SWAP_SMT_P_REASON } ,
1610 { SMT_P_REFUSED, sizeof(struct smt_p_refused) ,
1611 SWAP_SMT_P_REFUSED } ,
1612 { SMT_P_VERSION, sizeof(struct smt_p_version) ,
1613 SWAP_SMT_P_VERSION } ,
1614 #ifdef ESS
1615 { SMT_P0015, sizeof(struct smt_p_0015) , SWAP_SMT_P0015 } ,
1616 { SMT_P0016, sizeof(struct smt_p_0016) , SWAP_SMT_P0016 } ,
1617 { SMT_P0017, sizeof(struct smt_p_0017) , SWAP_SMT_P0017 } ,
1618 { SMT_P0018, sizeof(struct smt_p_0018) , SWAP_SMT_P0018 } ,
1619 { SMT_P0019, sizeof(struct smt_p_0019) , SWAP_SMT_P0019 } ,
1620 { SMT_P001A, sizeof(struct smt_p_001a) , SWAP_SMT_P001A } ,
1621 { SMT_P001B, sizeof(struct smt_p_001b) , SWAP_SMT_P001B } ,
1622 { SMT_P001C, sizeof(struct smt_p_001c) , SWAP_SMT_P001C } ,
1623 { SMT_P001D, sizeof(struct smt_p_001d) , SWAP_SMT_P001D } ,
1624 #endif
1625 #if 0
1626 { SMT_P_FSC, sizeof(struct smt_p_fsc) ,
1627 SWAP_SMT_P_FSC } ,
1628 #endif
1629
1630 { SMT_P_SETCOUNT,0, SWAP_SMT_P_SETCOUNT } ,
1631 { SMT_P1048, 0, SWAP_SMT_P1048 } ,
1632 { SMT_P208C, 0, SWAP_SMT_P208C } ,
1633 { SMT_P208D, 0, SWAP_SMT_P208D } ,
1634 { SMT_P208E, 0, SWAP_SMT_P208E } ,
1635 { SMT_P208F, 0, SWAP_SMT_P208F } ,
1636 { SMT_P2090, 0, SWAP_SMT_P2090 } ,
1637 #ifdef ESS
1638 { SMT_P320B, sizeof(struct smt_p_320b) , SWAP_SMT_P320B } ,
1639 { SMT_P320F, sizeof(struct smt_p_320f) , SWAP_SMT_P320F } ,
1640 { SMT_P3210, sizeof(struct smt_p_3210) , SWAP_SMT_P3210 } ,
1641 #endif
1642 { SMT_P4050, 0, SWAP_SMT_P4050 } ,
1643 { SMT_P4051, 0, SWAP_SMT_P4051 } ,
1644 { SMT_P4052, 0, SWAP_SMT_P4052 } ,
1645 { SMT_P4053, 0, SWAP_SMT_P4053 } ,
1646 } ;
1647
1648 #define N_SMT_PLEN ARRAY_SIZE(smt_pdef)
1649
1650 int smt_check_para(struct s_smc *smc, struct smt_header *sm,
1651 const u_short list[])
1652 {
1653 const u_short *p = list ;
1654 while (*p) {
1655 if (!sm_to_para(smc,sm,(int) *p)) {
1656 DB_SMT("SMT: smt_check_para - missing para %x\n",*p,0);
1657 return -1;
1658 }
1659 p++ ;
1660 }
1661 return 0;
1662 }
1663
1664 void *sm_to_para(struct s_smc *smc, struct smt_header *sm, int para)
1665 {
1666 char *p ;
1667 int len ;
1668 int plen ;
1669 void *found = NULL;
1670
1671 SK_UNUSED(smc) ;
1672
1673 len = sm->smt_len ;
1674 p = (char *)(sm+1) ; /* pointer to info */
1675 while (len > 0 ) {
1676 if (((struct smt_para *)p)->p_type == para)
1677 found = (void *) p ;
1678 plen = ((struct smt_para *)p)->p_len + PARA_LEN ;
1679 p += plen ;
1680 len -= plen ;
1681 if (len < 0) {
1682 DB_SMT("SMT : sm_to_para - length error %d\n",plen,0) ;
1683 return NULL;
1684 }
1685 if ((plen & 3) && (para != SMT_P_ECHODATA)) {
1686 DB_SMT("SMT : sm_to_para - odd length %d\n",plen,0) ;
1687 return NULL;
1688 }
1689 if (found)
1690 return found;
1691 }
1692 return NULL;
1693 }
1694
1695 #if 0
1696 /*
1697 * send ANTC data test frame
1698 */
1699 void fddi_send_antc(struct s_smc *smc, struct fddi_addr *dest)
1700 {
1701 SK_UNUSED(smc) ;
1702 SK_UNUSED(dest) ;
1703 #if 0
1704 SMbuf *mb ;
1705 struct smt_header *smt ;
1706 int i ;
1707 char *p ;
1708
1709 mb = smt_get_mbuf() ;
1710 mb->sm_len = 3000+12 ;
1711 p = smtod(mb, char *) + 12 ;
1712 for (i = 0 ; i < 3000 ; i++)
1713 *p++ = 1 << (i&7) ;
1714
1715 smt = smtod(mb, struct smt_header *) ;
1716 smt->smt_dest = *dest ;
1717 smt->smt_source = smc->mib.m[MAC0].fddiMACSMTAddress ;
1718 smt_send_mbuf(smc,mb,FC_ASYNC_LLC) ;
1719 #endif
1720 }
1721 #endif
1722
1723 #ifdef DEBUG
1724 char *addr_to_string(struct fddi_addr *addr)
1725 {
1726 int i ;
1727 static char string[6*3] = "****" ;
1728
1729 for (i = 0 ; i < 6 ; i++) {
1730 string[i * 3] = hex_asc_hi(addr->a[i]);
1731 string[i * 3 + 1] = hex_asc_lo(addr->a[i]);
1732 string[i * 3 + 2] = ':';
1733 }
1734 string[5 * 3 + 2] = 0;
1735 return string;
1736 }
1737 #endif
1738
1739 /*
1740 * return static mac index
1741 */
1742 static int mac_index(struct s_smc *smc, int mac)
1743 {
1744 SK_UNUSED(mac) ;
1745 #ifdef CONCENTRATOR
1746 SK_UNUSED(smc) ;
1747 return NUMPHYS + 1;
1748 #else
1749 return (smc->s.sas == SMT_SAS) ? 2 : 3;
1750 #endif
1751 }
1752
1753 /*
1754 * return static phy index
1755 */
1756 static int phy_index(struct s_smc *smc, int phy)
1757 {
1758 SK_UNUSED(smc) ;
1759 return phy + 1;
1760 }
1761
1762 /*
1763 * return dynamic mac connection resource index
1764 */
1765 static int mac_con_resource_index(struct s_smc *smc, int mac)
1766 {
1767 #ifdef CONCENTRATOR
1768 SK_UNUSED(smc) ;
1769 SK_UNUSED(mac) ;
1770 return entity_to_index(smc, cem_get_downstream(smc, ENTITY_MAC));
1771 #else
1772 SK_UNUSED(mac) ;
1773 switch (smc->mib.fddiSMTCF_State) {
1774 case SC9_C_WRAP_A :
1775 case SC5_THRU_B :
1776 case SC11_C_WRAP_S :
1777 return 1;
1778 case SC10_C_WRAP_B :
1779 case SC4_THRU_A :
1780 return 2;
1781 }
1782 return smc->s.sas == SMT_SAS ? 2 : 3;
1783 #endif
1784 }
1785
1786 /*
1787 * return dynamic phy connection resource index
1788 */
1789 static int phy_con_resource_index(struct s_smc *smc, int phy)
1790 {
1791 #ifdef CONCENTRATOR
1792 return entity_to_index(smc, cem_get_downstream(smc, ENTITY_PHY(phy))) ;
1793 #else
1794 switch (smc->mib.fddiSMTCF_State) {
1795 case SC9_C_WRAP_A :
1796 return phy == PA ? 3 : 2;
1797 case SC10_C_WRAP_B :
1798 return phy == PA ? 1 : 3;
1799 case SC4_THRU_A :
1800 return phy == PA ? 3 : 1;
1801 case SC5_THRU_B :
1802 return phy == PA ? 2 : 3;
1803 case SC11_C_WRAP_S :
1804 return 2;
1805 }
1806 return phy;
1807 #endif
1808 }
1809
1810 #ifdef CONCENTRATOR
1811 static int entity_to_index(struct s_smc *smc, int e)
1812 {
1813 if (e == ENTITY_MAC)
1814 return mac_index(smc, 1);
1815 else
1816 return phy_index(smc, e - ENTITY_PHY(0));
1817 }
1818 #endif
1819
1820 #ifdef LITTLE_ENDIAN
1821 static int smt_swap_short(u_short s)
1822 {
1823 return ((s>>8)&0xff) | ((s&0xff)<<8);
1824 }
1825
1826 void smt_swap_para(struct smt_header *sm, int len, int direction)
1827 /* int direction; 0 encode 1 decode */
1828 {
1829 struct smt_para *pa ;
1830 const struct smt_pdef *pd ;
1831 char *p ;
1832 int plen ;
1833 int type ;
1834 int i ;
1835
1836 /* printf("smt_swap_para sm %x len %d dir %d\n",
1837 sm,len,direction) ;
1838 */
1839 smt_string_swap((char *)sm,SWAP_SMTHEADER,len) ;
1840
1841 /* swap args */
1842 len -= sizeof(struct smt_header) ;
1843
1844 p = (char *) (sm + 1) ;
1845 while (len > 0) {
1846 pa = (struct smt_para *) p ;
1847 plen = pa->p_len ;
1848 type = pa->p_type ;
1849 pa->p_type = smt_swap_short(pa->p_type) ;
1850 pa->p_len = smt_swap_short(pa->p_len) ;
1851 if (direction) {
1852 plen = pa->p_len ;
1853 type = pa->p_type ;
1854 }
1855 /*
1856 * note: paras can have 0 length !
1857 */
1858 if (plen < 0)
1859 break ;
1860 plen += PARA_LEN ;
1861 for (i = N_SMT_PLEN, pd = smt_pdef; i ; i--,pd++) {
1862 if (pd->ptype == type)
1863 break ;
1864 }
1865 if (i && pd->pswap) {
1866 smt_string_swap(p+PARA_LEN,pd->pswap,len) ;
1867 }
1868 len -= plen ;
1869 p += plen ;
1870 }
1871 }
1872
1873 static void smt_string_swap(char *data, const char *format, int len)
1874 {
1875 const char *open_paren = NULL ;
1876 int x ;
1877
1878 while (len > 0 && *format) {
1879 switch (*format) {
1880 case '[' :
1881 open_paren = format ;
1882 break ;
1883 case ']' :
1884 format = open_paren ;
1885 break ;
1886 case '1' :
1887 case '2' :
1888 case '3' :
1889 case '4' :
1890 case '5' :
1891 case '6' :
1892 case '7' :
1893 case '8' :
1894 case '9' :
1895 data += *format - '0' ;
1896 len -= *format - '0' ;
1897 break ;
1898 case 'c':
1899 data++ ;
1900 len-- ;
1901 break ;
1902 case 's' :
1903 x = data[0] ;
1904 data[0] = data[1] ;
1905 data[1] = x ;
1906 data += 2 ;
1907 len -= 2 ;
1908 break ;
1909 case 'l' :
1910 x = data[0] ;
1911 data[0] = data[3] ;
1912 data[3] = x ;
1913 x = data[1] ;
1914 data[1] = data[2] ;
1915 data[2] = x ;
1916 data += 4 ;
1917 len -= 4 ;
1918 break ;
1919 }
1920 format++ ;
1921 }
1922 }
1923 #else
1924 void smt_swap_para(struct smt_header *sm, int len, int direction)
1925 /* int direction; 0 encode 1 decode */
1926 {
1927 SK_UNUSED(sm) ;
1928 SK_UNUSED(len) ;
1929 SK_UNUSED(direction) ;
1930 }
1931 #endif
1932
1933 /*
1934 * PMF actions
1935 */
1936 int smt_action(struct s_smc *smc, int class, int code, int index)
1937 {
1938 int event ;
1939 int port ;
1940 DB_SMT("SMT: action %d code %d\n",class,code) ;
1941 switch(class) {
1942 case SMT_STATION_ACTION :
1943 switch(code) {
1944 case SMT_STATION_ACTION_CONNECT :
1945 smc->mib.fddiSMTRemoteDisconnectFlag = FALSE ;
1946 queue_event(smc,EVENT_ECM,EC_CONNECT) ;
1947 break ;
1948 case SMT_STATION_ACTION_DISCONNECT :
1949 queue_event(smc,EVENT_ECM,EC_DISCONNECT) ;
1950 smc->mib.fddiSMTRemoteDisconnectFlag = TRUE ;
1951 RS_SET(smc,RS_DISCONNECT) ;
1952 AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
1953 FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_DISCONNECT,
1954 smt_get_event_word(smc));
1955 break ;
1956 case SMT_STATION_ACTION_PATHTEST :
1957 AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
1958 FDDI_SMT_EVENT, (u_long) FDDI_PATH_TEST,
1959 smt_get_event_word(smc));
1960 break ;
1961 case SMT_STATION_ACTION_SELFTEST :
1962 AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
1963 FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_SELF_TEST,
1964 smt_get_event_word(smc));
1965 break ;
1966 case SMT_STATION_ACTION_DISABLE_A :
1967 if (smc->y[PA].pc_mode == PM_PEER) {
1968 RS_SET(smc,RS_EVENT) ;
1969 queue_event(smc,EVENT_PCM+PA,PC_DISABLE) ;
1970 }
1971 break ;
1972 case SMT_STATION_ACTION_DISABLE_B :
1973 if (smc->y[PB].pc_mode == PM_PEER) {
1974 RS_SET(smc,RS_EVENT) ;
1975 queue_event(smc,EVENT_PCM+PB,PC_DISABLE) ;
1976 }
1977 break ;
1978 case SMT_STATION_ACTION_DISABLE_M :
1979 for (port = 0 ; port < NUMPHYS ; port++) {
1980 if (smc->mib.p[port].fddiPORTMy_Type != TM)
1981 continue ;
1982 RS_SET(smc,RS_EVENT) ;
1983 queue_event(smc,EVENT_PCM+port,PC_DISABLE) ;
1984 }
1985 break ;
1986 default :
1987 return 1;
1988 }
1989 break ;
1990 case SMT_PORT_ACTION :
1991 switch(code) {
1992 case SMT_PORT_ACTION_ENABLE :
1993 event = PC_ENABLE ;
1994 break ;
1995 case SMT_PORT_ACTION_DISABLE :
1996 event = PC_DISABLE ;
1997 break ;
1998 case SMT_PORT_ACTION_MAINT :
1999 event = PC_MAINT ;
2000 break ;
2001 case SMT_PORT_ACTION_START :
2002 event = PC_START ;
2003 break ;
2004 case SMT_PORT_ACTION_STOP :
2005 event = PC_STOP ;
2006 break ;
2007 default :
2008 return 1;
2009 }
2010 queue_event(smc,EVENT_PCM+index,event) ;
2011 break ;
2012 default :
2013 return 1;
2014 }
2015 return 0;
2016 }
2017
2018 /*
2019 * canonical conversion of <len> bytes beginning form *data
2020 */
2021 #ifdef USE_CAN_ADDR
2022 static void hwm_conv_can(struct s_smc *smc, char *data, int len)
2023 {
2024 int i ;
2025
2026 SK_UNUSED(smc) ;
2027
2028 for (i = len; i ; i--, data++)
2029 *data = bitrev8(*data);
2030 }
2031 #endif
2032
2033 #endif /* no SLIM_SMT */
2034
Linux with added FPC-III support