xref: /openbmc/linux/drivers/net/fddi/skfp/smtdef.c (revision bc3f7c2b)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /******************************************************************************
3  *
4  *	(C)Copyright 1998,1999 SysKonnect,
5  *	a business unit of Schneider & Koch & Co. Datensysteme GmbH.
6  *
7  *	See the file "skfddi.c" for further information.
8  *
9  *	The information in this file is provided "AS IS" without warranty.
10  *
11  ******************************************************************************/
12 
13 /*
14 	SMT/CMT defaults
15 */
16 
17 #include "h/types.h"
18 #include "h/fddi.h"
19 #include "h/smc.h"
20 
21 #ifndef OEM_USER_DATA
22 #define OEM_USER_DATA	"SK-NET FDDI V2.0 Userdata"
23 #endif
24 
25 /*
26  * defaults
27  */
28 #define TTMS(x)	((u_long)(x)*1000L)
29 #define TTS(x)	((u_long)(x)*1000000L)
30 #define TTUS(x)	((u_long)(x))
31 
32 #define DEFAULT_TB_MIN		TTMS(5)
33 #define DEFAULT_TB_MAX		TTMS(50)
34 #define DEFAULT_C_MIN		TTUS(1600)
35 #define DEFAULT_T_OUT		TTMS(100+5)
36 #define DEFAULT_TL_MIN		TTUS(30)
37 #define DEFAULT_LC_SHORT	TTMS(50+5)
38 #define DEFAULT_LC_MEDIUM	TTMS(500+20)
39 #define DEFAULT_LC_LONG		TTS(5)+TTMS(50)
40 #define DEFAULT_LC_EXTENDED	TTS(50)+TTMS(50)
41 #define DEFAULT_T_NEXT_9	TTMS(200+10)
42 #define DEFAULT_NS_MAX		TTUS(1310)
43 #define DEFAULT_I_MAX		TTMS(25)
44 #define DEFAULT_IN_MAX		TTMS(40)
45 #define DEFAULT_TD_MIN		TTMS(5)
46 #define DEFAULT_T_NON_OP	TTS(1)
47 #define DEFAULT_T_STUCK		TTS(8)
48 #define DEFAULT_T_DIRECT	TTMS(370)
49 #define DEFAULT_T_JAM		TTMS(370)
50 #define DEFAULT_T_ANNOUNCE	TTMS(2500)
51 #define DEFAULT_D_MAX		TTUS(1617)
52 #define DEFAULT_LEM_ALARM	(8)
53 #define DEFAULT_LEM_CUTOFF	(7)
54 #define DEFAULT_TEST_DONE	TTS(1)
55 #define DEFAULT_CHECK_POLL	TTS(1)
56 #define DEFAULT_POLL		TTMS(50)
57 
58 /*
59  * LCT errors threshold
60  */
61 #define DEFAULT_LCT_SHORT	1
62 #define DEFAULT_LCT_MEDIUM	3
63 #define DEFAULT_LCT_LONG	5
64 #define DEFAULT_LCT_EXTEND	50
65 
66 /* Forward declarations */
67 void smt_reset_defaults(struct s_smc *smc, int level);
68 static void smt_init_mib(struct s_smc *smc, int level);
69 static int set_min_max(int maxflag, u_long mib, u_long limit, u_long *oper);
70 
71 #define MS2BCLK(x)	((x)*12500L)
72 #define US2BCLK(x)	((x)*1250L)
73 
smt_reset_defaults(struct s_smc * smc,int level)74 void smt_reset_defaults(struct s_smc *smc, int level)
75 {
76 	struct smt_config	*smt ;
77 	int			i ;
78 	u_long			smt_boot_time;
79 
80 
81 	smt_init_mib(smc,level) ;
82 
83 	smc->os.smc_version = SMC_VERSION ;
84 	smt_boot_time = smt_get_time();
85 	for( i = 0; i < NUMMACS; i++ )
86 		smc->sm.last_tok_time[i] = smt_boot_time ;
87 	smt = &smc->s ;
88 	smt->attach_s = 0 ;
89 	smt->build_ring_map = 1 ;
90 	smt->sas = SMT_DAS ;
91 	smt->numphys = NUMPHYS ;
92 	smt->pcm_tb_min = DEFAULT_TB_MIN ;
93 	smt->pcm_tb_max = DEFAULT_TB_MAX ;
94 	smt->pcm_c_min = DEFAULT_C_MIN ;
95 	smt->pcm_t_out = DEFAULT_T_OUT ;
96 	smt->pcm_tl_min = DEFAULT_TL_MIN ;
97 	smt->pcm_lc_short = DEFAULT_LC_SHORT ;
98 	smt->pcm_lc_medium = DEFAULT_LC_MEDIUM ;
99 	smt->pcm_lc_long = DEFAULT_LC_LONG ;
100 	smt->pcm_lc_extended = DEFAULT_LC_EXTENDED ;
101 	smt->pcm_t_next_9 = DEFAULT_T_NEXT_9 ;
102 	smt->pcm_ns_max = DEFAULT_NS_MAX ;
103 	smt->ecm_i_max = DEFAULT_I_MAX ;
104 	smt->ecm_in_max = DEFAULT_IN_MAX ;
105 	smt->ecm_td_min = DEFAULT_TD_MIN ;
106 	smt->ecm_test_done = DEFAULT_TEST_DONE ;
107 	smt->ecm_check_poll = DEFAULT_CHECK_POLL ;
108 	smt->rmt_t_non_op = DEFAULT_T_NON_OP ;
109 	smt->rmt_t_stuck = DEFAULT_T_STUCK ;
110 	smt->rmt_t_direct = DEFAULT_T_DIRECT ;
111 	smt->rmt_t_jam = DEFAULT_T_JAM ;
112 	smt->rmt_t_announce = DEFAULT_T_ANNOUNCE ;
113 	smt->rmt_t_poll = DEFAULT_POLL ;
114         smt->rmt_dup_mac_behavior = FALSE ;  /* See Struct smt_config */
115 	smt->mac_d_max = DEFAULT_D_MAX ;
116 
117 	smt->lct_short = DEFAULT_LCT_SHORT ;
118 	smt->lct_medium = DEFAULT_LCT_MEDIUM ;
119 	smt->lct_long = DEFAULT_LCT_LONG ;
120 	smt->lct_extended = DEFAULT_LCT_EXTEND ;
121 
122 #ifndef	SLIM_SMT
123 #ifdef	ESS
124 	if (level == 0) {
125 		smc->ess.sync_bw_available = FALSE ;
126 		smc->mib.fddiESSPayload = 0 ;
127 		smc->mib.fddiESSOverhead = 0 ;
128 		smc->mib.fddiESSMaxTNeg = (u_long)(- MS2BCLK(25)) ;
129 		smc->mib.fddiESSMinSegmentSize = 1 ;
130 		smc->mib.fddiESSCategory = SB_STATIC ;
131 		smc->mib.fddiESSSynchTxMode = FALSE ;
132 		smc->ess.raf_act_timer_poll = FALSE ;
133 		smc->ess.timer_count = 7 ; 	/* first RAF alc req after 3s */
134 	}
135 	smc->ess.local_sba_active = FALSE ;
136 	smc->ess.sba_reply_pend = NULL ;
137 #endif
138 #ifdef	SBA
139 	smt_init_sba(smc,level) ;
140 #endif
141 #endif	/* no SLIM_SMT */
142 #ifdef	TAG_MODE
143 	if (level == 0) {
144 		smc->hw.pci_fix_value = 0 ;
145 	}
146 #endif
147 }
148 
149 /*
150  * manufacturer data
151  */
152 static const char man_data[32] =
153 /*	 01234567890123456789012345678901	*/
154 	"xxxSK-NET FDDI SMT 7.3 - V2.8.8" ;
155 
smt_init_mib(struct s_smc * smc,int level)156 static void smt_init_mib(struct s_smc *smc, int level)
157 {
158 	struct fddi_mib		*mib ;
159 	struct fddi_mib_p	*pm ;
160 	int			port ;
161 	int			path ;
162 
163 	mib = &smc->mib ;
164 	if (level == 0) {
165 		/*
166 		 * set EVERYTHING to ZERO
167 		 * EXCEPT hw and os
168 		 */
169 		memset(((char *)smc)+
170 			sizeof(struct s_smt_os)+sizeof(struct s_smt_hw), 0,
171 			sizeof(struct s_smc) -
172 			sizeof(struct s_smt_os) - sizeof(struct s_smt_hw)) ;
173 	}
174 	else {
175 		mib->fddiSMTRemoteDisconnectFlag = 0 ;
176 		mib->fddiSMTPeerWrapFlag = 0 ;
177 	}
178 
179 	mib->fddiSMTOpVersionId = 2 ;
180 	mib->fddiSMTHiVersionId = 2 ;
181 	mib->fddiSMTLoVersionId = 2 ;
182 	memcpy((char *) mib->fddiSMTManufacturerData,man_data,32) ;
183 	if (level == 0) {
184 		strcpy(mib->fddiSMTUserData,OEM_USER_DATA) ;
185 	}
186 	mib->fddiSMTMIBVersionId = 1 ;
187 	mib->fddiSMTMac_Ct = NUMMACS ;
188 	mib->fddiSMTConnectionPolicy = POLICY_MM | POLICY_AA | POLICY_BB ;
189 
190 	/*
191 	 * fddiSMTNonMaster_Ct and fddiSMTMaster_Ct are set in smt_fixup_mib
192 	 * s.sas is not set yet (is set in init driver)
193 	 */
194 	mib->fddiSMTAvailablePaths = MIB_PATH_P | MIB_PATH_S ;
195 
196 	mib->fddiSMTConfigCapabilities = 0 ;	/* no hold,no wrap_ab*/
197 	mib->fddiSMTTT_Notify = 10 ;
198 	mib->fddiSMTStatRptPolicy = TRUE ;
199 	mib->fddiSMTTrace_MaxExpiration = SEC2MIB(7) ;
200 	mib->fddiSMTMACIndexes = INDEX_MAC ;
201 	mib->fddiSMTStationStatus = MIB_SMT_STASTA_SEPA ;	/* separated */
202 
203 	mib->m[MAC0].fddiMACIndex = INDEX_MAC ;
204 	mib->m[MAC0].fddiMACFrameStatusFunctions = FSC_TYPE0 ;
205 	mib->m[MAC0].fddiMACRequestedPaths =
206 		MIB_P_PATH_LOCAL |
207 		MIB_P_PATH_SEC_ALTER |
208 		MIB_P_PATH_PRIM_ALTER ;
209 	mib->m[MAC0].fddiMACAvailablePaths = MIB_PATH_P ;
210 	mib->m[MAC0].fddiMACCurrentPath = MIB_PATH_PRIMARY ;
211 	mib->m[MAC0].fddiMACT_MaxCapabilitiy = (u_long)(- MS2BCLK(165)) ;
212 	mib->m[MAC0].fddiMACTVXCapabilitiy = (u_long)(- US2BCLK(52)) ;
213 	if (level == 0) {
214 		mib->m[MAC0].fddiMACTvxValue = (u_long)(- US2BCLK(27)) ;
215 		mib->m[MAC0].fddiMACTvxValueMIB = (u_long)(- US2BCLK(27)) ;
216 		mib->m[MAC0].fddiMACT_Req = (u_long)(- MS2BCLK(165)) ;
217 		mib->m[MAC0].fddiMACT_ReqMIB = (u_long)(- MS2BCLK(165)) ;
218 		mib->m[MAC0].fddiMACT_Max = (u_long)(- MS2BCLK(165)) ;
219 		mib->m[MAC0].fddiMACT_MaxMIB = (u_long)(- MS2BCLK(165)) ;
220 		mib->m[MAC0].fddiMACT_Min = (u_long)(- MS2BCLK(4)) ;
221 	}
222 	mib->m[MAC0].fddiMACHardwarePresent = TRUE ;
223 	mib->m[MAC0].fddiMACMA_UnitdataEnable = TRUE ;
224 	mib->m[MAC0].fddiMACFrameErrorThreshold = 1 ;
225 	mib->m[MAC0].fddiMACNotCopiedThreshold = 1 ;
226 	/*
227 	 * Path attributes
228 	 */
229 	for (path = 0 ; path < NUMPATHS ; path++) {
230 		mib->a[path].fddiPATHIndex = INDEX_PATH + path ;
231 		if (level == 0) {
232 			mib->a[path].fddiPATHTVXLowerBound =
233 				(u_long)(- US2BCLK(27)) ;
234 			mib->a[path].fddiPATHT_MaxLowerBound =
235 				(u_long)(- MS2BCLK(165)) ;
236 			mib->a[path].fddiPATHMaxT_Req =
237 				(u_long)(- MS2BCLK(165)) ;
238 		}
239 	}
240 
241 
242 	/*
243 	 * Port attributes
244 	 */
245 	pm = mib->p ;
246 	for (port = 0 ; port <  NUMPHYS ; port++) {
247 		/*
248 		 * set MIB pointer in phy
249 		 */
250 		/* Attention: don't initialize mib pointer here! */
251 		/*  It must be initialized during phase 2 */
252 		smc->y[port].mib = NULL;
253 		mib->fddiSMTPORTIndexes[port] = port+INDEX_PORT ;
254 
255 		pm->fddiPORTIndex = port+INDEX_PORT ;
256 		pm->fddiPORTHardwarePresent = TRUE ;
257 		if (level == 0) {
258 			pm->fddiPORTLer_Alarm = DEFAULT_LEM_ALARM ;
259 			pm->fddiPORTLer_Cutoff = DEFAULT_LEM_CUTOFF ;
260 		}
261 		/*
262 		 * fddiPORTRequestedPaths are set in pcmplc.c
263 		 * we don't know the port type yet !
264 		 */
265 		pm->fddiPORTRequestedPaths[1] = 0 ;
266 		pm->fddiPORTRequestedPaths[2] = 0 ;
267 		pm->fddiPORTRequestedPaths[3] = 0 ;
268 		pm->fddiPORTAvailablePaths = MIB_PATH_P ;
269 		pm->fddiPORTPMDClass = MIB_PMDCLASS_MULTI ;
270 		pm++ ;
271 	}
272 
273 	(void) smt_set_mac_opvalues(smc) ;
274 }
275 
smt_set_mac_opvalues(struct s_smc * smc)276 int smt_set_mac_opvalues(struct s_smc *smc)
277 {
278 	int	st ;
279 	int	st2 ;
280 
281 	st = set_min_max(1,smc->mib.m[MAC0].fddiMACTvxValueMIB,
282 		smc->mib.a[PATH0].fddiPATHTVXLowerBound,
283 		&smc->mib.m[MAC0].fddiMACTvxValue) ;
284 	st |= set_min_max(0,smc->mib.m[MAC0].fddiMACT_MaxMIB,
285 		smc->mib.a[PATH0].fddiPATHT_MaxLowerBound,
286 		&smc->mib.m[MAC0].fddiMACT_Max) ;
287 	st |= (st2 = set_min_max(0,smc->mib.m[MAC0].fddiMACT_ReqMIB,
288 		smc->mib.a[PATH0].fddiPATHMaxT_Req,
289 		&smc->mib.m[MAC0].fddiMACT_Req)) ;
290 	if (st2) {
291 		/* Treq attribute changed remotely. So send an AIX_EVENT to the
292 		 * user
293 		 */
294 		AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
295 			FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_T_REQ,
296 			smt_get_event_word(smc));
297 	}
298 	return st;
299 }
300 
smt_fixup_mib(struct s_smc * smc)301 void smt_fixup_mib(struct s_smc *smc)
302 {
303 #ifdef	CONCENTRATOR
304 	switch (smc->s.sas) {
305 	case SMT_SAS :
306 		smc->mib.fddiSMTNonMaster_Ct = 1 ;
307 		break ;
308 	case SMT_DAS :
309 		smc->mib.fddiSMTNonMaster_Ct = 2 ;
310 		break ;
311 	case SMT_NAC :
312 		smc->mib.fddiSMTNonMaster_Ct = 0 ;
313 		break ;
314 	}
315 	smc->mib.fddiSMTMaster_Ct = NUMPHYS - smc->mib.fddiSMTNonMaster_Ct ;
316 #else
317 	switch (smc->s.sas) {
318 	case SMT_SAS :
319 		smc->mib.fddiSMTNonMaster_Ct = 1 ;
320 		break ;
321 	case SMT_DAS :
322 		smc->mib.fddiSMTNonMaster_Ct = 2 ;
323 		break ;
324 	}
325 	smc->mib.fddiSMTMaster_Ct = 0 ;
326 #endif
327 }
328 
329 /*
330  * determine new setting for operational value
331  * if limit is lower than mib
332  *	use limit
333  * else
334  *	use mib
335  * NOTE : numbers are negative, negate comparison !
336  */
set_min_max(int maxflag,u_long mib,u_long limit,u_long * oper)337 static int set_min_max(int maxflag, u_long mib, u_long limit, u_long *oper)
338 {
339 	u_long	old ;
340 	old = *oper ;
341 	if ((limit > mib) ^ maxflag)
342 		*oper = limit ;
343 	else
344 		*oper = mib ;
345 	return old != *oper;
346 }
347 
348