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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / b97a31165ab042543bac38f692cf98575367afc4 / . / drivers / net / sk98lin / skrlmt.c
blob: 14a6f40d8b83cfe5850a9458b6775debd0c77ce3 [file] [log] [blame]
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1/******************************************************************************
2 *
3 * Name: skrlmt.c
4 * Project: GEnesis, PCI Gigabit Ethernet Adapter
5 * Version: $Revision: 1.68 $
6 * Date: $Date: 2003/01/31 15:26:56 $
7 * Purpose: Manage links on SK-NET Adapters, esp. redundant ones.
8 *
9 ******************************************************************************/
10
11/******************************************************************************
12 *
13 * (C)Copyright 1998-2001 SysKonnect GmbH.
14 *
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
19 *
20 * The information in this file is provided "AS IS" without warranty.
21 *
22 ******************************************************************************/
23
24/******************************************************************************
25 *
26 * History:
27 *
28 * $Log: skrlmt.c,v $
29 * Revision 1.68 2003/01/31 15:26:56 rschmidt
30 * Added init for local variables in RlmtInit().
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]31 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]32 * Revision 1.67 2003/01/31 14:12:41 mkunz
33 * single port adapter runs now with two identical MAC addresses
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]34 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]35 * Revision 1.66 2002/09/23 15:14:19 rwahl
36 * - Reset broadcast timestamp on link down.
37 * - Editorial corrections.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]38 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]39 * Revision 1.65 2002/07/22 14:29:48 rwahl
40 * - Removed BRK statement from debug check.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]41 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]42 * Revision 1.64 2001/11/28 19:36:14 rwahl
43 * - RLMT Packets sent to an invalid MAC address in CLP/CLPSS mode
44 * (#10650).
45 * - Reworked fix for port switching in CLS mode (#10639)
46 * (no dependency to RLMT module).
47 * - Enabled dbg output for entry/exit of event functions.
48 * - Editorial changes.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]49 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]50 * Revision 1.63 2001/10/26 07:53:18 afischer
51 * Port switching bug in `check local link` mode
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]52 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]53 * Revision 1.62 2001/07/03 12:16:30 mkunz
54 * New Flag ChgBcPrio (Change priority of last broadcast received)
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]55 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]56 * Revision 1.61 2001/03/14 12:52:08 rassmann
57 * Fixed reporting of active port up/down to PNMI.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]58 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]59 * Revision 1.60 2001/02/21 16:02:25 gklug
60 * fix: when RLMT starts set Active Port for PNMI
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]61 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]62 * Revision 1.59 2001/02/16 14:38:19 rassmann
63 * Initializing some pointers earlier in the init phase.
64 * Rx Mbufs are freed if the net which they belong to is stopped.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]65 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]66 * Revision 1.58 2001/02/14 14:06:31 rassmann
67 * Editorial changes.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]68 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]69 * Revision 1.57 2001/02/05 14:25:26 rassmann
70 * Prepared RLMT for transparent operation.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]71 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]72 * Revision 1.56 2001/01/30 10:29:09 rassmann
73 * Not checking switching befor RlmtStart.
74 * Editorial changes.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]75 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]76 * Revision 1.55 2001/01/22 13:41:38 rassmann
77 * Supporting two nets on dual-port adapters.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]78 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]79 * Revision 1.54 2000/11/30 13:25:07 rassmann
80 * Setting SK_TICK_INCR to 1 by default.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]81 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]82 * Revision 1.53 2000/11/30 10:48:07 cgoos
83 * Changed definition of SK_RLMT_BC_DELTA.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]84 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]85 * Revision 1.52 2000/11/27 12:50:03 rassmann
86 * Checking ports after receiving broadcasts.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]87 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]88 * Revision 1.51 2000/11/17 08:58:00 rassmann
89 * Moved CheckSwitch from SK_RLMT_PACKET_RECEIVED to SK_RLMT_TIM event.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]90 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]91 * Revision 1.50 2000/11/09 12:24:34 rassmann
92 * Indicating that segmentation check is not running anymore after
93 * SkRlmtCheckSeg().
94 * Restarting segmentation timer after segmentation log.
95 * Editorial changes.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]96 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]97 * Revision 1.49 1999/11/22 13:38:02 cgoos
98 * Changed license header to GPL.
99 * Added initialization to some variables to avoid compiler warnings.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]100 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]101 * Revision 1.48 1999/10/04 14:01:17 rassmann
102 * Corrected reaction to reception of BPDU frames (#10441).
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]103 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]104 * Revision 1.47 1999/07/20 12:53:36 rassmann
105 * Fixed documentation errors for lookahead macros.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]106 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]107 * Revision 1.46 1999/05/28 13:29:16 rassmann
108 * Replaced C++-style comment.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]109 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]110 * Revision 1.45 1999/05/28 13:28:08 rassmann
111 * Corrected syntax error (xxx).
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]112 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]113 * Revision 1.44 1999/05/28 11:15:54 rassmann
114 * Changed behaviour to reflect Design Spec v1.2.
115 * Controlling Link LED(s).
116 * Introduced RLMT Packet Version field in RLMT Packet.
117 * Newstyle lookahead macros (checking meta-information before looking at
118 * the packet).
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]119 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]120 * Revision 1.43 1999/01/28 13:12:43 rassmann
121 * Corrected Lookahead (bug introduced in previous Rev.).
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]122 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]123 * Revision 1.42 1999/01/28 12:50:41 rassmann
124 * Not using broadcast time stamps in CheckLinkState mode.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]125 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]126 * Revision 1.41 1999/01/27 14:13:02 rassmann
127 * Monitoring broadcast traffic.
128 * Switching more reliably and not too early if switch is
129 * configured for spanning tree.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]130 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]131 * Revision 1.40 1999/01/22 13:17:30 rassmann
132 * Informing PNMI of NET_UP.
133 * Clearing RLMT multicast addresses before setting them for the first time.
134 * Reporting segmentation earlier, setting a "quiet time"
135 * after a report.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]136 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]137 * Revision 1.39 1998/12/10 15:29:53 rassmann
138 * Corrected SuspectStatus in SkRlmtBuildCheckChain().
139 * Corrected CHECK_SEG mode.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]140 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]141 * Revision 1.38 1998/12/08 13:11:23 rassmann
142 * Stopping SegTimer at RlmtStop.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]143 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]144 * Revision 1.37 1998/12/07 16:51:42 rassmann
145 * Corrected comments.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]146 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]147 * Revision 1.36 1998/12/04 10:58:56 rassmann
148 * Setting next pointer to NULL when receiving.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]149 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]150 * Revision 1.35 1998/12/03 16:12:42 rassmann
151 * Ignoring/correcting illegal PrefPort values.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]152 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]153 * Revision 1.34 1998/12/01 11:45:35 rassmann
154 * Code cleanup.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]155 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]156 * Revision 1.33 1998/12/01 10:29:32 rassmann
157 * Starting standby ports before getting the net up.
158 * Checking if a port is started when the link comes up.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]159 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]160 * Revision 1.32 1998/11/30 16:19:50 rassmann
161 * New default for PortNoRx.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]162 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]163 * Revision 1.31 1998/11/27 19:17:13 rassmann
164 * Corrected handling of LINK_DOWN coming shortly after LINK_UP.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]165 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]166 * Revision 1.30 1998/11/24 12:37:31 rassmann
167 * Implemented segmentation check.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]168 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]169 * Revision 1.29 1998/11/18 13:04:32 rassmann
170 * Secured PortUpTimer event.
171 * Waiting longer before starting standby port(s).
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]172 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]173 * Revision 1.28 1998/11/17 13:43:04 rassmann
174 * Handling (logical) tx failure.
175 * Sending packet on logical address after PORT_SWITCH.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]176 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]177 * Revision 1.27 1998/11/13 17:09:50 rassmann
178 * Secured some events against being called in wrong state.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]179 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]180 * Revision 1.26 1998/11/13 16:56:54 rassmann
181 * Added macro version of SkRlmtLookaheadPacket.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]182 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]183 * Revision 1.25 1998/11/06 18:06:04 rassmann
184 * Corrected timing when RLMT checks fail.
185 * Clearing tx counter earlier in periodical checks.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]186 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]187 * Revision 1.24 1998/11/05 10:37:27 rassmann
188 * Checking destination address in Lookahead.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]189 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]190 * Revision 1.23 1998/11/03 13:53:49 rassmann
191 * RLMT should switch now (at least in mode 3).
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]192 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]193 * Revision 1.22 1998/10/29 14:34:49 rassmann
194 * Clearing SK_RLMT struct at startup.
195 * Initializing PortsUp during SK_RLMT_START.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]196 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]197 * Revision 1.21 1998/10/28 11:30:17 rassmann
198 * Default mode is now SK_RLMT_CHECK_LOC_LINK.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]199 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]200 * Revision 1.20 1998/10/26 16:02:03 rassmann
201 * Ignoring LINK_DOWN for links that are down.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]202 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]203 * Revision 1.19 1998/10/22 15:54:01 rassmann
204 * Corrected EtherLen.
205 * Starting Link Check when second port comes up.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]206 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]207 * Revision 1.18 1998/10/22 11:39:50 rassmann
208 * Corrected signed/unsigned mismatches.
209 * Corrected receive list handling and address recognition.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]210 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]211 * Revision 1.17 1998/10/19 17:01:20 rassmann
212 * More detailed checking of received packets.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]213 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]214 * Revision 1.16 1998/10/15 15:16:34 rassmann
215 * Finished Spanning Tree checking.
216 * Checked with lint.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]217 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]218 * Revision 1.15 1998/09/24 19:16:07 rassmann
219 * Code cleanup.
220 * Introduced Timer for PORT_DOWN due to no RX.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]221 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]222 * Revision 1.14 1998/09/18 20:27:14 rassmann
223 * Added address override.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]224 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]225 * Revision 1.13 1998/09/16 11:31:48 rassmann
226 * Including skdrv1st.h again. :(
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]227 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]228 * Revision 1.12 1998/09/16 11:09:50 rassmann
229 * Syntax corrections.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]230 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]231 * Revision 1.11 1998/09/15 12:32:03 rassmann
232 * Syntax correction.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]233 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]234 * Revision 1.10 1998/09/15 11:28:49 rassmann
235 * Syntax corrections.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]236 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]237 * Revision 1.9 1998/09/14 17:07:37 rassmann
238 * Added code for port checking via LAN.
239 * Changed Mbuf definition.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]240 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]241 * Revision 1.8 1998/09/07 11:14:14 rassmann
242 * Syntax corrections.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]243 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]244 * Revision 1.7 1998/09/07 09:06:07 rassmann
245 * Syntax corrections.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]246 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]247 * Revision 1.6 1998/09/04 19:41:33 rassmann
248 * Syntax corrections.
249 * Started entering code for checking local links.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]250 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]251 * Revision 1.5 1998/09/04 12:14:27 rassmann
252 * Interface cleanup.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]253 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]254 * Revision 1.4 1998/09/02 16:55:28 rassmann
255 * Updated to reflect new DRV/HWAC/RLMT interface.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]256 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]257 * Revision 1.3 1998/08/27 14:29:03 rassmann
258 * Code cleanup.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]259 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]260 * Revision 1.2 1998/08/27 14:26:24 rassmann
261 * Updated interface.
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]262 *
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]263 * Revision 1.1 1998/08/21 08:26:49 rassmann
264 * First public version.
265 *
266 ******************************************************************************/
267
268/******************************************************************************
269 *
270 * Description:
271 *
272 * This module contains code for Link ManagemenT (LMT) of SK-NET Adapters.
273 * It is mainly intended for adapters with more than one link.
274 * For such adapters, this module realizes Redundant Link ManagemenT (RLMT).
275 *
276 * Include File Hierarchy:
277 *
278 * "skdrv1st.h"
279 * "skdrv2nd.h"
280 *
281 ******************************************************************************/
282
wdenk149dded2003-09-10 18:20:28 +0000[diff] [blame]283#include <config.h>
284
285#ifdef CONFIG_SK98
286
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]287#ifndef lint
288static const char SysKonnectFileId[] =
289 "@(#) $Id: skrlmt.c,v 1.68 2003/01/31 15:26:56 rschmidt Exp $ (C) SysKonnect.";
290#endif /* !defined(lint) */
291
292#define __SKRLMT_C
293
294#ifdef __cplusplus
295#error C++ is not yet supported.
296extern "C" {
297#endif /* cplusplus */
298
299#include "h/skdrv1st.h"
300#include "h/skdrv2nd.h"
301
302/* defines ********************************************************************/
303
304#ifndef SK_HWAC_LINK_LED
305#define SK_HWAC_LINK_LED(a,b,c,d)
306#endif /* !defined(SK_HWAC_LINK_LED) */
307
308#ifndef DEBUG
309#define RLMT_STATIC static
310#else /* DEBUG */
311#define RLMT_STATIC
312
313#ifndef SK_LITTLE_ENDIAN
314/* First 32 bits */
315#define OFFS_LO32 1
316
317/* Second 32 bits */
318#define OFFS_HI32 0
319#else /* SK_LITTLE_ENDIAN */
320/* First 32 bits */
321#define OFFS_LO32 0
322
323/* Second 32 bits */
324#define OFFS_HI32 1
325#endif /* SK_LITTLE_ENDIAN */
326
327#endif /* DEBUG */
328
329/* ----- Private timeout values ----- */
330
331#define SK_RLMT_MIN_TO_VAL 125000 /* 1/8 sec. */
332#define SK_RLMT_DEF_TO_VAL 1000000 /* 1 sec. */
333#define SK_RLMT_PORTDOWN_TIM_VAL 900000 /* another 0.9 sec. */
334#define SK_RLMT_PORTSTART_TIM_VAL 100000 /* 0.1 sec. */
335#define SK_RLMT_PORTUP_TIM_VAL 2500000 /* 2.5 sec. */
336#define SK_RLMT_SEG_TO_VAL 900000000 /* 15 min. */
337
338/* Assume tick counter increment is 1 - may be set OS-dependent. */
339#ifndef SK_TICK_INCR
340#define SK_TICK_INCR SK_CONSTU64(1)
341#endif /* !defined(SK_TICK_INCR) */
342
343/*
344 * Amount that a time stamp must be later to be recognized as "substantially
345 * later". This is about 1/128 sec, but above 1 tick counter increment.
346 */
347#define SK_RLMT_BC_DELTA (1 + ((SK_TICKS_PER_SEC >> 7) > SK_TICK_INCR ? \
348 (SK_TICKS_PER_SEC >> 7) : SK_TICK_INCR))
349
350/* ----- Private RLMT defaults ----- */
351
352#define SK_RLMT_DEF_PREF_PORT 0 /* "Lower" port. */
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]353#define SK_RLMT_DEF_MODE SK_RLMT_CHECK_LINK /* Default RLMT Mode. */
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]354
355/* ----- Private RLMT checking states ----- */
356
357#define SK_RLMT_RCS_SEG 1 /* RLMT Check State: check seg. */
358#define SK_RLMT_RCS_START_SEG 2 /* RLMT Check State: start check seg. */
359#define SK_RLMT_RCS_SEND_SEG 4 /* RLMT Check State: send BPDU packet */
360#define SK_RLMT_RCS_REPORT_SEG 8 /* RLMT Check State: report seg. */
361
362/* ----- Private PORT checking states ----- */
363
364#define SK_RLMT_PCS_TX 1 /* Port Check State: check tx. */
365#define SK_RLMT_PCS_RX 2 /* Port Check State: check rx. */
366
367/* ----- Private PORT events ----- */
368
369/* Note: Update simulation when changing these. */
370#define SK_RLMT_PORTSTART_TIM 1100 /* Port start timeout. */
371#define SK_RLMT_PORTUP_TIM 1101 /* Port can now go up. */
372#define SK_RLMT_PORTDOWN_RX_TIM 1102 /* Port did not receive once ... */
373#define SK_RLMT_PORTDOWN 1103 /* Port went down. */
374#define SK_RLMT_PORTDOWN_TX_TIM 1104 /* Partner did not receive ... */
375
376/* ----- Private RLMT events ----- */
377
378/* Note: Update simulation when changing these. */
379#define SK_RLMT_TIM 2100 /* RLMT timeout. */
380#define SK_RLMT_SEG_TIM 2101 /* RLMT segmentation check timeout. */
381
382#define TO_SHORTEN(tim) ((tim) / 2)
383
384/* Error numbers and messages. */
385#define SKERR_RLMT_E001 (SK_ERRBASE_RLMT + 0)
386#define SKERR_RLMT_E001_MSG "No Packet."
387#define SKERR_RLMT_E002 (SKERR_RLMT_E001 + 1)
388#define SKERR_RLMT_E002_MSG "Short Packet."
389#define SKERR_RLMT_E003 (SKERR_RLMT_E002 + 1)
390#define SKERR_RLMT_E003_MSG "Unknown RLMT event."
391#define SKERR_RLMT_E004 (SKERR_RLMT_E003 + 1)
392#define SKERR_RLMT_E004_MSG "PortsUp incorrect."
393#define SKERR_RLMT_E005 (SKERR_RLMT_E004 + 1)
394#define SKERR_RLMT_E005_MSG \
395 "Net seems to be segmented (different root bridges are reported on the ports)."
396#define SKERR_RLMT_E006 (SKERR_RLMT_E005 + 1)
397#define SKERR_RLMT_E006_MSG "Duplicate MAC Address detected."
398#define SKERR_RLMT_E007 (SKERR_RLMT_E006 + 1)
399#define SKERR_RLMT_E007_MSG "LinksUp incorrect."
400#define SKERR_RLMT_E008 (SKERR_RLMT_E007 + 1)
401#define SKERR_RLMT_E008_MSG "Port not started but link came up."
402#define SKERR_RLMT_E009 (SKERR_RLMT_E008 + 1)
403#define SKERR_RLMT_E009_MSG "Corrected illegal setting of Preferred Port."
404#define SKERR_RLMT_E010 (SKERR_RLMT_E009 + 1)
405#define SKERR_RLMT_E010_MSG "Ignored illegal Preferred Port."
406
407/* LLC field values. */
408#define LLC_COMMAND_RESPONSE_BIT 1
409#define LLC_TEST_COMMAND 0xE3
410#define LLC_UI 0x03
411
412/* RLMT Packet fields. */
413#define SK_RLMT_DSAP 0
414#define SK_RLMT_SSAP 0
415#define SK_RLMT_CTRL (LLC_TEST_COMMAND)
416#define SK_RLMT_INDICATOR0 0x53 /* S */
417#define SK_RLMT_INDICATOR1 0x4B /* K */
418#define SK_RLMT_INDICATOR2 0x2D /* - */
419#define SK_RLMT_INDICATOR3 0x52 /* R */
420#define SK_RLMT_INDICATOR4 0x4C /* L */
421#define SK_RLMT_INDICATOR5 0x4D /* M */
422#define SK_RLMT_INDICATOR6 0x54 /* T */
423#define SK_RLMT_PACKET_VERSION 0
424
425/* RLMT SPT Flag values. */
426#define SK_RLMT_SPT_FLAG_CHANGE 0x01
427#define SK_RLMT_SPT_FLAG_CHANGE_ACK 0x80
428
429/* RLMT SPT Packet fields. */
430#define SK_RLMT_SPT_DSAP 0x42
431#define SK_RLMT_SPT_SSAP 0x42
432#define SK_RLMT_SPT_CTRL (LLC_UI)
433#define SK_RLMT_SPT_PROTOCOL_ID0 0x00
434#define SK_RLMT_SPT_PROTOCOL_ID1 0x00
435#define SK_RLMT_SPT_PROTOCOL_VERSION_ID 0x00
436#define SK_RLMT_SPT_BPDU_TYPE 0x00
437#define SK_RLMT_SPT_FLAGS 0x00 /* ?? */
438#define SK_RLMT_SPT_ROOT_ID0 0xFF /* Lowest possible priority. */
439#define SK_RLMT_SPT_ROOT_ID1 0xFF /* Lowest possible priority. */
440
441/* Remaining 6 bytes will be the current port address. */
442#define SK_RLMT_SPT_ROOT_PATH_COST0 0x00
443#define SK_RLMT_SPT_ROOT_PATH_COST1 0x00
444#define SK_RLMT_SPT_ROOT_PATH_COST2 0x00
445#define SK_RLMT_SPT_ROOT_PATH_COST3 0x00
446#define SK_RLMT_SPT_BRIDGE_ID0 0xFF /* Lowest possible priority. */
447#define SK_RLMT_SPT_BRIDGE_ID1 0xFF /* Lowest possible priority. */
448
449/* Remaining 6 bytes will be the current port address. */
450#define SK_RLMT_SPT_PORT_ID0 0xFF /* Lowest possible priority. */
451#define SK_RLMT_SPT_PORT_ID1 0xFF /* Lowest possible priority. */
452#define SK_RLMT_SPT_MSG_AGE0 0x00
453#define SK_RLMT_SPT_MSG_AGE1 0x00
454#define SK_RLMT_SPT_MAX_AGE0 0x00
455#define SK_RLMT_SPT_MAX_AGE1 0xFF
456#define SK_RLMT_SPT_HELLO_TIME0 0x00
457#define SK_RLMT_SPT_HELLO_TIME1 0xFF
458#define SK_RLMT_SPT_FWD_DELAY0 0x00
459#define SK_RLMT_SPT_FWD_DELAY1 0x40
460
461/* Size defines. */
462#define SK_RLMT_MIN_PACKET_SIZE 34
463#define SK_RLMT_MAX_PACKET_SIZE (SK_RLMT_MAX_TX_BUF_SIZE)
464#define SK_PACKET_DATA_LEN (SK_RLMT_MAX_PACKET_SIZE - \
465 SK_RLMT_MIN_PACKET_SIZE)
466
467/* ----- RLMT packet types ----- */
468#define SK_PACKET_ANNOUNCE 1 /* Port announcement. */
469#define SK_PACKET_ALIVE 2 /* Alive packet to port. */
470#define SK_PACKET_ADDR_CHANGED 3 /* Port address changed. */
471#define SK_PACKET_CHECK_TX 4 /* Check your tx line. */
472
473#ifdef SK_LITTLE_ENDIAN
474#define SK_U16_TO_NETWORK_ORDER(Val,Addr) { \
475 SK_U8 *_Addr = (SK_U8*)(Addr); \
476 SK_U16 _Val = (SK_U16)(Val); \
477 *_Addr++ = (SK_U8)(_Val >> 8); \
478 *_Addr = (SK_U8)(_Val & 0xFF); \
479}
480#endif /* SK_LITTLE_ENDIAN */
481
482#ifdef SK_BIG_ENDIAN
483#define SK_U16_TO_NETWORK_ORDER(Val,Addr) (*(SK_U16*)(Addr) = (SK_U16)(Val))
484#endif /* SK_BIG_ENDIAN */
485
486#define AUTONEG_FAILED SK_FALSE
487#define AUTONEG_SUCCESS SK_TRUE
488
489
490/* typedefs *******************************************************************/
491
492/* RLMT packet. Length: SK_RLMT_MAX_PACKET_SIZE (60) bytes. */
493typedef struct s_RlmtPacket {
494 SK_U8 DstAddr[SK_MAC_ADDR_LEN];
495 SK_U8 SrcAddr[SK_MAC_ADDR_LEN];
496 SK_U8 TypeLen[2];
497 SK_U8 DSap;
498 SK_U8 SSap;
499 SK_U8 Ctrl;
500 SK_U8 Indicator[7];
501 SK_U8 RlmtPacketType[2];
502 SK_U8 Align1[2];
503 SK_U8 Random[4]; /* Random value of requesting(!) station. */
504 SK_U8 RlmtPacketVersion[2]; /* RLMT Packet version. */
505 SK_U8 Data[SK_PACKET_DATA_LEN];
506} SK_RLMT_PACKET;
507
508typedef struct s_SpTreeRlmtPacket {
509 SK_U8 DstAddr[SK_MAC_ADDR_LEN];
510 SK_U8 SrcAddr[SK_MAC_ADDR_LEN];
511 SK_U8 TypeLen[2];
512 SK_U8 DSap;
513 SK_U8 SSap;
514 SK_U8 Ctrl;
515 SK_U8 ProtocolId[2];
516 SK_U8 ProtocolVersionId;
517 SK_U8 BpduType;
518 SK_U8 Flags;
519 SK_U8 RootId[8];
520 SK_U8 RootPathCost[4];
521 SK_U8 BridgeId[8];
522 SK_U8 PortId[2];
523 SK_U8 MessageAge[2];
524 SK_U8 MaxAge[2];
525 SK_U8 HelloTime[2];
526 SK_U8 ForwardDelay[2];
527} SK_SPTREE_PACKET;
528
529/* global variables ***********************************************************/
530
531SK_MAC_ADDR SkRlmtMcAddr = {{0x01, 0x00, 0x5A, 0x52, 0x4C, 0x4D}};
532SK_MAC_ADDR BridgeMcAddr = {{0x01, 0x80, 0xC2, 0x00, 0x00, 0x00}};
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200[diff] [blame]533SK_MAC_ADDR BcAddr = {{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}};
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]534
535/* local variables ************************************************************/
536
537/* None. */
538
539/* functions ******************************************************************/
540
541RLMT_STATIC void SkRlmtCheckSwitch(
542 SK_AC *pAC,
543 SK_IOC IoC,
544 SK_U32 NetIdx);
545RLMT_STATIC void SkRlmtCheckSeg(
546 SK_AC *pAC,
547 SK_IOC IoC,
548 SK_U32 NetIdx);
549RLMT_STATIC void SkRlmtEvtSetNets(
550 SK_AC *pAC,
551 SK_IOC IoC,
552 SK_EVPARA Para);
553
554/******************************************************************************
555 *
556 * SkRlmtInit - initialize data, set state to init
557 *
558 * Description:
559 *
560 * SK_INIT_DATA
561 * ============
562 *
563 * This routine initializes all RLMT-related variables to a known state.
564 * The initial state is SK_RLMT_RS_INIT.
565 * All ports are initialized to SK_RLMT_PS_INIT.
566 *
567 *
568 * SK_INIT_IO
569 * ==========
570 *
571 * Nothing.
572 *
573 *
574 * SK_INIT_RUN
575 * ===========
576 *
577 * Determine the adapter's random value.
578 * Set the hw registers, the "logical MAC address", the
579 * RLMT multicast address, and eventually the BPDU multicast address.
580 *
581 * Context:
582 * init, pageable
583 *
584 * Returns:
585 * Nothing.
586 */
587void SkRlmtInit(
588SK_AC *pAC, /* Adapter Context */
589SK_IOC IoC, /* I/O Context */
590int Level) /* Initialization Level */
591{
592 SK_U32 i, j;
593 SK_U64 Random;
594 SK_EVPARA Para;
595 SK_MAC_ADDR VirtualMacAddress;
596 SK_MAC_ADDR PhysicalAMacAddress;
597 SK_BOOL VirtualMacAddressSet;
598 SK_BOOL PhysicalAMacAddressSet;
599
600 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_INIT,
601 ("RLMT Init level %d.\n", Level))
602
603 switch (Level) {
604 case SK_INIT_DATA: /* Initialize data structures. */
605 SK_MEMSET((char *)&pAC->Rlmt, 0, sizeof(SK_RLMT));
606
607 for (i = 0; i < SK_MAX_MACS; i++) {
608 pAC->Rlmt.Port[i].PortState = SK_RLMT_PS_INIT;
609 pAC->Rlmt.Port[i].LinkDown = SK_TRUE;
610 pAC->Rlmt.Port[i].PortDown = SK_TRUE;
611 pAC->Rlmt.Port[i].PortStarted = SK_FALSE;
612 pAC->Rlmt.Port[i].PortNoRx = SK_FALSE;
613 pAC->Rlmt.Port[i].RootIdSet = SK_FALSE;
614 pAC->Rlmt.Port[i].PortNumber = i;
615 pAC->Rlmt.Port[i].Net = &pAC->Rlmt.Net[0];
616 pAC->Rlmt.Port[i].AddrPort = &pAC->Addr.Port[i];
617 }
618
619 pAC->Rlmt.NumNets = 1;
620 for (i = 0; i < SK_MAX_NETS; i++) {
621 pAC->Rlmt.Net[i].RlmtState = SK_RLMT_RS_INIT;
622 pAC->Rlmt.Net[i].RootIdSet = SK_FALSE;
623 pAC->Rlmt.Net[i].PrefPort = SK_RLMT_DEF_PREF_PORT;
624 pAC->Rlmt.Net[i].Preference = 0xFFFFFFFF; /* Automatic. */
625 /* Just assuming. */
626 pAC->Rlmt.Net[i].ActivePort = pAC->Rlmt.Net[i].PrefPort;
627 pAC->Rlmt.Net[i].RlmtMode = SK_RLMT_DEF_MODE;
628 pAC->Rlmt.Net[i].TimeoutValue = SK_RLMT_DEF_TO_VAL;
629 pAC->Rlmt.Net[i].NetNumber = i;
630 }
631
632 pAC->Rlmt.Net[0].Port[0] = &pAC->Rlmt.Port[0];
633 pAC->Rlmt.Net[0].Port[1] = &pAC->Rlmt.Port[1];
634#if SK_MAX_NETS > 1
635 pAC->Rlmt.Net[1].Port[0] = &pAC->Rlmt.Port[1];
636#endif /* SK_MAX_NETS > 1 */
637 break;
638
639 case SK_INIT_IO: /* GIMacsFound first available here. */
640 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_INIT,
641 ("RLMT: %d MACs were detected.\n", pAC->GIni.GIMacsFound))
642
643 pAC->Rlmt.Net[0].NumPorts = pAC->GIni.GIMacsFound;
644
645 /* Initialize HW registers? */
646 if (pAC->GIni.GIMacsFound == 1) {
647 Para.Para32[0] = SK_RLMT_MODE_CLS;
648 Para.Para32[1] = 0;
649 (void)SkRlmtEvent(pAC, IoC, SK_RLMT_MODE_CHANGE, Para);
650 }
651 break;
652
653 case SK_INIT_RUN:
654 /* Ensure RLMT is set to one net. */
655 if (pAC->Rlmt.NumNets > 1) {
656 Para.Para32[0] = 1;
657 Para.Para32[1] = -1;
658 SkRlmtEvtSetNets(pAC, IoC, Para);
659 }
660
661 for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
662 Random = SkOsGetTime(pAC);
663 *(SK_U32*)&pAC->Rlmt.Port[i].Random = *(SK_U32*)&Random;
664
665 for (j = 0; j < 4; j++) {
666 pAC->Rlmt.Port[i].Random[j] ^= pAC->Rlmt.Port[i].AddrPort->
667 CurrentMacAddress.a[SK_MAC_ADDR_LEN - 1 - j];
668 }
669
670 (void)SkAddrMcClear(pAC, IoC, i, SK_ADDR_PERMANENT | SK_MC_SW_ONLY);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]671
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]672 /* Add RLMT MC address. */
673 (void)SkAddrMcAdd(pAC, IoC, i, &SkRlmtMcAddr, SK_ADDR_PERMANENT);
674
675 if (pAC->Rlmt.Net[0].RlmtMode & SK_RLMT_CHECK_SEG) {
676 /* Add BPDU MC address. */
677 (void)SkAddrMcAdd(pAC, IoC, i, &BridgeMcAddr, SK_ADDR_PERMANENT);
678 }
679
680 (void)SkAddrMcUpdate(pAC, IoC, i);
681 }
682
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]683 VirtualMacAddressSet = SK_FALSE;
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]684 /* Read virtual MAC address from Control Register File. */
685 for (j = 0; j < SK_MAC_ADDR_LEN; j++) {
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]686
687 SK_IN8(IoC, B2_MAC_1 + j, &VirtualMacAddress.a[j]);
688 VirtualMacAddressSet |= VirtualMacAddress.a[j];
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]689 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]690
691 PhysicalAMacAddressSet = SK_FALSE;
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]692 /* Read physical MAC address for MAC A from Control Register File. */
693 for (j = 0; j < SK_MAC_ADDR_LEN; j++) {
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]694
695 SK_IN8(IoC, B2_MAC_2 + j, &PhysicalAMacAddress.a[j]);
696 PhysicalAMacAddressSet |= PhysicalAMacAddress.a[j];
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]697 }
698
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]699 /* check if the two mac addresses contain reasonable values */
700 if (!VirtualMacAddressSet || !PhysicalAMacAddressSet) {
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]701
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]702 pAC->Rlmt.RlmtOff = SK_TRUE;
703 }
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]704
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]705 /* if the two mac addresses are equal switch off the RLMT_PRE_LOOKAHEAD
706 and the RLMT_LOOKAHEAD macros */
707 else if (SK_ADDR_EQUAL(PhysicalAMacAddress.a, VirtualMacAddress.a)) {
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]708
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]709 pAC->Rlmt.RlmtOff = SK_TRUE;
710 }
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]711 else {
712 pAC->Rlmt.RlmtOff = SK_FALSE;
713 }
714 break;
715
716 default: /* error */
717 break;
718 }
719 return;
720} /* SkRlmtInit */
721
722
723/******************************************************************************
724 *
725 * SkRlmtBuildCheckChain - build the check chain
726 *
727 * Description:
728 * This routine builds the local check chain:
729 * - Each port that is up checks the next port.
730 * - The last port that is up checks the first port that is up.
731 *
732 * Notes:
733 * - Currently only local ports are considered when building the chain.
734 * - Currently the SuspectState is just reset;
735 * it would be better to save it ...
736 *
737 * Context:
738 * runtime, pageable?
739 *
740 * Returns:
741 * Nothing
742 */
743RLMT_STATIC void SkRlmtBuildCheckChain(
744SK_AC *pAC, /* Adapter Context */
745SK_U32 NetIdx) /* Net Number */
746{
747 SK_U32 i;
748 SK_U32 NumMacsUp;
749 SK_RLMT_PORT * FirstMacUp;
750 SK_RLMT_PORT * PrevMacUp;
751
752 FirstMacUp = NULL;
753 PrevMacUp = NULL;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]754
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]755 if (!(pAC->Rlmt.Net[NetIdx].RlmtMode & SK_RLMT_CHECK_LOC_LINK)) {
756 for (i = 0; i < pAC->Rlmt.Net[i].NumPorts; i++) {
757 pAC->Rlmt.Net[NetIdx].Port[i]->PortsChecked = 0;
758 }
759 return; /* Done. */
760 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]761
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]762 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
763 ("SkRlmtBuildCheckChain.\n"))
764
765 NumMacsUp = 0;
766
767 for (i = 0; i < pAC->Rlmt.Net[NetIdx].NumPorts; i++) {
768 pAC->Rlmt.Net[NetIdx].Port[i]->PortsChecked = 0;
769 pAC->Rlmt.Net[NetIdx].Port[i]->PortsSuspect = 0;
770 pAC->Rlmt.Net[NetIdx].Port[i]->CheckingState &=
771 ~(SK_RLMT_PCS_RX | SK_RLMT_PCS_TX);
772
773 /*
774 * If more than two links are detected we should consider
775 * checking at least two other ports:
776 * 1. the next port that is not LinkDown and
777 * 2. the next port that is not PortDown.
778 */
779 if (!pAC->Rlmt.Net[NetIdx].Port[i]->LinkDown) {
780 if (NumMacsUp == 0) {
781 FirstMacUp = pAC->Rlmt.Net[NetIdx].Port[i];
782 }
783 else {
784 PrevMacUp->PortCheck[
785 pAC->Rlmt.Net[NetIdx].Port[i]->PortsChecked].CheckAddr =
786 pAC->Rlmt.Net[NetIdx].Port[i]->AddrPort->CurrentMacAddress;
787 PrevMacUp->PortCheck[
788 PrevMacUp->PortsChecked].SuspectTx = SK_FALSE;
789 PrevMacUp->PortsChecked++;
790 }
791 PrevMacUp = pAC->Rlmt.Net[NetIdx].Port[i];
792 NumMacsUp++;
793 }
794 }
795
796 if (NumMacsUp > 1) {
797 PrevMacUp->PortCheck[PrevMacUp->PortsChecked].CheckAddr =
798 FirstMacUp->AddrPort->CurrentMacAddress;
799 PrevMacUp->PortCheck[PrevMacUp->PortsChecked].SuspectTx =
800 SK_FALSE;
801 PrevMacUp->PortsChecked++;
802 }
803
804#ifdef DEBUG
805 for (i = 0; i < pAC->Rlmt.Net[NetIdx].NumPorts; i++) {
806 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
807 ("Port %d checks %d other ports: %2X.\n", i,
808 pAC->Rlmt.Net[NetIdx].Port[i]->PortsChecked,
809 pAC->Rlmt.Net[NetIdx].Port[i]->PortCheck[0].CheckAddr.a[5]))
810 }
811#endif /* DEBUG */
812
813 return;
814} /* SkRlmtBuildCheckChain */
815
816
817/******************************************************************************
818 *
819 * SkRlmtBuildPacket - build an RLMT packet
820 *
821 * Description:
822 * This routine sets up an RLMT packet.
823 *
824 * Context:
825 * runtime, pageable?
826 *
827 * Returns:
828 * NULL or pointer to RLMT mbuf
829 */
830RLMT_STATIC SK_MBUF *SkRlmtBuildPacket(
831SK_AC *pAC, /* Adapter Context */
832SK_IOC IoC, /* I/O Context */
833SK_U32 PortNumber, /* Sending port */
834SK_U16 PacketType, /* RLMT packet type */
835SK_MAC_ADDR *SrcAddr, /* Source address */
836SK_MAC_ADDR *DestAddr) /* Destination address */
837{
838 int i;
839 SK_U16 Length;
840 SK_MBUF *pMb;
841 SK_RLMT_PACKET *pPacket;
842
843#ifdef DEBUG
844 SK_U8 CheckSrc = 0;
845 SK_U8 CheckDest = 0;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]846
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]847 for (i = 0; i < SK_MAC_ADDR_LEN; ++i) {
848 CheckSrc |= SrcAddr->a[i];
849 CheckDest |= DestAddr->a[i];
850 }
851
852 if ((CheckSrc == 0) || (CheckDest == 0)) {
853 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_ERR,
854 ("SkRlmtBuildPacket: Invalid %s%saddr.\n",
855 (CheckSrc == 0 ? "Src" : ""), (CheckDest == 0 ? "Dest" : "")))
856 }
857#endif
858
859 if ((pMb = SkDrvAllocRlmtMbuf(pAC, IoC, SK_RLMT_MAX_PACKET_SIZE)) != NULL) {
860 pPacket = (SK_RLMT_PACKET*)pMb->pData;
861 for (i = 0; i < SK_MAC_ADDR_LEN; i++) {
862 pPacket->DstAddr[i] = DestAddr->a[i];
863 pPacket->SrcAddr[i] = SrcAddr->a[i];
864 }
865 pPacket->DSap = SK_RLMT_DSAP;
866 pPacket->SSap = SK_RLMT_SSAP;
867 pPacket->Ctrl = SK_RLMT_CTRL;
868 pPacket->Indicator[0] = SK_RLMT_INDICATOR0;
869 pPacket->Indicator[1] = SK_RLMT_INDICATOR1;
870 pPacket->Indicator[2] = SK_RLMT_INDICATOR2;
871 pPacket->Indicator[3] = SK_RLMT_INDICATOR3;
872 pPacket->Indicator[4] = SK_RLMT_INDICATOR4;
873 pPacket->Indicator[5] = SK_RLMT_INDICATOR5;
874 pPacket->Indicator[6] = SK_RLMT_INDICATOR6;
875
876 SK_U16_TO_NETWORK_ORDER(PacketType, &pPacket->RlmtPacketType[0]);
877
878 for (i = 0; i < 4; i++) {
879 pPacket->Random[i] = pAC->Rlmt.Port[PortNumber].Random[i];
880 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]881
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]882 SK_U16_TO_NETWORK_ORDER(
883 SK_RLMT_PACKET_VERSION, &pPacket->RlmtPacketVersion[0]);
884
885 for (i = 0; i < SK_PACKET_DATA_LEN; i++) {
886 pPacket->Data[i] = 0x00;
887 }
888
889 Length = SK_RLMT_MAX_PACKET_SIZE; /* Or smaller. */
890 pMb->Length = Length;
891 pMb->PortIdx = PortNumber;
892 Length -= 14;
893 SK_U16_TO_NETWORK_ORDER(Length, &pPacket->TypeLen[0]);
894
895 if (PacketType == SK_PACKET_ALIVE) {
896 pAC->Rlmt.Port[PortNumber].TxHelloCts++;
897 }
898 }
899
900 return (pMb);
901} /* SkRlmtBuildPacket */
902
903
904/******************************************************************************
905 *
906 * SkRlmtBuildSpanningTreePacket - build spanning tree check packet
907 *
908 * Description:
909 * This routine sets up a BPDU packet for spanning tree check.
910 *
911 * Context:
912 * runtime, pageable?
913 *
914 * Returns:
915 * NULL or pointer to RLMT mbuf
916 */
917RLMT_STATIC SK_MBUF *SkRlmtBuildSpanningTreePacket(
918SK_AC *pAC, /* Adapter Context */
919SK_IOC IoC, /* I/O Context */
920SK_U32 PortNumber) /* Sending port */
921{
922 unsigned i;
923 SK_U16 Length;
924 SK_MBUF *pMb;
925 SK_SPTREE_PACKET *pSPacket;
926
927 if ((pMb = SkDrvAllocRlmtMbuf(pAC, IoC, SK_RLMT_MAX_PACKET_SIZE)) !=
928 NULL) {
929 pSPacket = (SK_SPTREE_PACKET*)pMb->pData;
930 for (i = 0; i < SK_MAC_ADDR_LEN; i++) {
931 pSPacket->DstAddr[i] = BridgeMcAddr.a[i];
932 pSPacket->SrcAddr[i] =
933 pAC->Addr.Port[PortNumber].CurrentMacAddress.a[i];
934 }
935 pSPacket->DSap = SK_RLMT_SPT_DSAP;
936 pSPacket->SSap = SK_RLMT_SPT_SSAP;
937 pSPacket->Ctrl = SK_RLMT_SPT_CTRL;
938
939 pSPacket->ProtocolId[0] = SK_RLMT_SPT_PROTOCOL_ID0;
940 pSPacket->ProtocolId[1] = SK_RLMT_SPT_PROTOCOL_ID1;
941 pSPacket->ProtocolVersionId = SK_RLMT_SPT_PROTOCOL_VERSION_ID;
942 pSPacket->BpduType = SK_RLMT_SPT_BPDU_TYPE;
943 pSPacket->Flags = SK_RLMT_SPT_FLAGS;
944 pSPacket->RootId[0] = SK_RLMT_SPT_ROOT_ID0;
945 pSPacket->RootId[1] = SK_RLMT_SPT_ROOT_ID1;
946 pSPacket->RootPathCost[0] = SK_RLMT_SPT_ROOT_PATH_COST0;
947 pSPacket->RootPathCost[1] = SK_RLMT_SPT_ROOT_PATH_COST1;
948 pSPacket->RootPathCost[2] = SK_RLMT_SPT_ROOT_PATH_COST2;
949 pSPacket->RootPathCost[3] = SK_RLMT_SPT_ROOT_PATH_COST3;
950 pSPacket->BridgeId[0] = SK_RLMT_SPT_BRIDGE_ID0;
951 pSPacket->BridgeId[1] = SK_RLMT_SPT_BRIDGE_ID1;
952
953 /*
954 * Use logical MAC address as bridge ID and filter these packets
955 * on receive.
956 */
957 for (i = 0; i < SK_MAC_ADDR_LEN; i++) {
958 pSPacket->BridgeId[i + 2] = pSPacket->RootId[i + 2] =
959 pAC->Addr.Net[pAC->Rlmt.Port[PortNumber].Net->NetNumber].
960 CurrentMacAddress.a[i];
961 }
962 pSPacket->PortId[0] = SK_RLMT_SPT_PORT_ID0;
963 pSPacket->PortId[1] = SK_RLMT_SPT_PORT_ID1;
964 pSPacket->MessageAge[0] = SK_RLMT_SPT_MSG_AGE0;
965 pSPacket->MessageAge[1] = SK_RLMT_SPT_MSG_AGE1;
966 pSPacket->MaxAge[0] = SK_RLMT_SPT_MAX_AGE0;
967 pSPacket->MaxAge[1] = SK_RLMT_SPT_MAX_AGE1;
968 pSPacket->HelloTime[0] = SK_RLMT_SPT_HELLO_TIME0;
969 pSPacket->HelloTime[1] = SK_RLMT_SPT_HELLO_TIME1;
970 pSPacket->ForwardDelay[0] = SK_RLMT_SPT_FWD_DELAY0;
971 pSPacket->ForwardDelay[1] = SK_RLMT_SPT_FWD_DELAY1;
972
973 Length = SK_RLMT_MAX_PACKET_SIZE; /* Or smaller. */
974 pMb->Length = Length;
975 pMb->PortIdx = PortNumber;
976 Length -= 14;
977 SK_U16_TO_NETWORK_ORDER(Length, &pSPacket->TypeLen[0]);
978
979 pAC->Rlmt.Port[PortNumber].TxSpHelloReqCts++;
980 }
981
982 return (pMb);
983} /* SkRlmtBuildSpanningTreePacket */
984
985
986/******************************************************************************
987 *
988 * SkRlmtSend - build and send check packets
989 *
990 * Description:
991 * Depending on the RLMT state and the checking state, several packets
992 * are sent through the indicated port.
993 *
994 * Context:
995 * runtime, pageable?
996 *
997 * Returns:
998 * Nothing.
999 */
1000RLMT_STATIC void SkRlmtSend(
1001SK_AC *pAC, /* Adapter Context */
1002SK_IOC IoC, /* I/O Context */
1003SK_U32 PortNumber) /* Sending port */
1004{
1005 unsigned j;
1006 SK_EVPARA Para;
1007 SK_RLMT_PORT *pRPort;
1008
1009 pRPort = &pAC->Rlmt.Port[PortNumber];
1010 if (pAC->Rlmt.Port[PortNumber].Net->RlmtMode & SK_RLMT_CHECK_LOC_LINK) {
1011 if (pRPort->CheckingState & (SK_RLMT_PCS_TX | SK_RLMT_PCS_RX)) {
1012 /* Port is suspicious. Send the RLMT packet to the RLMT mc addr. */
1013 if ((Para.pParaPtr = SkRlmtBuildPacket(pAC, IoC, PortNumber,
1014 SK_PACKET_ALIVE, &pAC->Addr.Port[PortNumber].CurrentMacAddress,
1015 &SkRlmtMcAddr)) != NULL) {
1016 SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
1017 }
1018 }
1019 else {
1020 /*
1021 * Send a directed RLMT packet to all ports that are
1022 * checked by the indicated port.
1023 */
1024 for (j = 0; j < pRPort->PortsChecked; j++) {
1025 if ((Para.pParaPtr = SkRlmtBuildPacket(pAC, IoC, PortNumber,
1026 SK_PACKET_ALIVE, &pAC->Addr.Port[PortNumber].CurrentMacAddress,
1027 &pRPort->PortCheck[j].CheckAddr)) != NULL) {
1028 SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
1029 }
1030 }
1031 }
1032 }
1033
1034 if ((pAC->Rlmt.Port[PortNumber].Net->RlmtMode & SK_RLMT_CHECK_SEG) &&
1035 (pAC->Rlmt.Port[PortNumber].Net->CheckingState & SK_RLMT_RCS_SEND_SEG)) {
1036 /*
1037 * Send a BPDU packet to make a connected switch tell us
1038 * the correct root bridge.
1039 */
1040 if ((Para.pParaPtr =
1041 SkRlmtBuildSpanningTreePacket(pAC, IoC, PortNumber)) != NULL) {
1042 pAC->Rlmt.Port[PortNumber].Net->CheckingState &= ~SK_RLMT_RCS_SEND_SEG;
1043 pRPort->RootIdSet = SK_FALSE;
1044
1045 SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
1046 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_TX,
1047 ("SkRlmtSend: BPDU Packet on Port %u.\n", PortNumber))
1048 }
1049 }
1050 return;
1051} /* SkRlmtSend */
1052
1053
1054/******************************************************************************
1055 *
1056 * SkRlmtPortReceives - check if port is (going) down and bring it up
1057 *
1058 * Description:
1059 * This routine checks if a port who received a non-BPDU packet
1060 * needs to go up or needs to be stopped going down.
1061 *
1062 * Context:
1063 * runtime, pageable?
1064 *
1065 * Returns:
1066 * Nothing.
1067 */
1068RLMT_STATIC void SkRlmtPortReceives(
1069SK_AC *pAC, /* Adapter Context */
1070SK_IOC IoC, /* I/O Context */
1071SK_U32 PortNumber) /* Port to check */
1072{
1073 SK_RLMT_PORT *pRPort;
1074 SK_EVPARA Para;
1075
1076 pRPort = &pAC->Rlmt.Port[PortNumber];
1077 pRPort->PortNoRx = SK_FALSE;
1078
1079 if ((pRPort->PortState == SK_RLMT_PS_DOWN) &&
1080 !(pRPort->CheckingState & SK_RLMT_PCS_TX)) {
1081 /*
1082 * Port is marked down (rx), but received a non-BPDU packet.
1083 * Bring it up.
1084 */
1085 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
1086 ("SkRlmtPacketReceive: Received on PortDown.\n"))
1087
1088 pRPort->PortState = SK_RLMT_PS_GOING_UP;
1089 pRPort->GuTimeStamp = SkOsGetTime(pAC);
1090 Para.Para32[0] = PortNumber;
1091 Para.Para32[1] = (SK_U32)-1;
1092 SkTimerStart(pAC, IoC, &pRPort->UpTimer, SK_RLMT_PORTUP_TIM_VAL,
1093 SKGE_RLMT, SK_RLMT_PORTUP_TIM, Para);
1094 pRPort->CheckingState &= ~SK_RLMT_PCS_RX;
1095 /* pAC->Rlmt.CheckSwitch = SK_TRUE; */
1096 SkRlmtCheckSwitch(pAC, IoC, pRPort->Net->NetNumber);
1097 } /* PortDown && !SuspectTx */
1098 else if (pRPort->CheckingState & SK_RLMT_PCS_RX) {
1099 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
1100 ("SkRlmtPacketReceive: Stop bringing port down.\n"))
1101 SkTimerStop(pAC, IoC, &pRPort->DownRxTimer);
1102 pRPort->CheckingState &= ~SK_RLMT_PCS_RX;
1103 /* pAC->Rlmt.CheckSwitch = SK_TRUE; */
1104 SkRlmtCheckSwitch(pAC, IoC, pRPort->Net->NetNumber);
1105 } /* PortGoingDown */
1106
1107 return;
1108} /* SkRlmtPortReceives */
1109
1110
1111/******************************************************************************
1112 *
1113 * SkRlmtPacketReceive - receive a packet for closer examination
1114 *
1115 * Description:
1116 * This routine examines a packet more closely than SK_RLMT_LOOKAHEAD.
1117 *
1118 * Context:
1119 * runtime, pageable?
1120 *
1121 * Returns:
1122 * Nothing.
1123 */
1124RLMT_STATIC void SkRlmtPacketReceive(
1125SK_AC *pAC, /* Adapter Context */
1126SK_IOC IoC, /* I/O Context */
1127SK_MBUF *pMb) /* Received packet */
1128{
1129#ifdef xDEBUG
1130 extern void DumpData(char *p, int size);
1131#endif /* DEBUG */
1132 int i;
1133 unsigned j;
1134 SK_U16 PacketType;
1135 SK_U32 PortNumber;
1136 SK_ADDR_PORT *pAPort;
1137 SK_RLMT_PORT *pRPort;
1138 SK_RLMT_PACKET *pRPacket;
1139 SK_SPTREE_PACKET *pSPacket;
1140 SK_EVPARA Para;
1141
1142 PortNumber = pMb->PortIdx;
1143 pAPort = &pAC->Addr.Port[PortNumber];
1144 pRPort = &pAC->Rlmt.Port[PortNumber];
1145
1146 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
1147 ("SkRlmtPacketReceive: PortNumber == %d.\n", PortNumber))
1148
1149 pRPacket = (SK_RLMT_PACKET*)pMb->pData;
1150 pSPacket = (SK_SPTREE_PACKET*)pRPacket;
1151
1152#ifdef xDEBUG
1153 DumpData((char *)pRPacket, 32);
1154#endif /* DEBUG */
1155
1156 if ((pRPort->PacketsPerTimeSlot - pRPort->BpduPacketsPerTimeSlot) != 0) {
1157 SkRlmtPortReceives(pAC, IoC, PortNumber);
1158 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1159
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1160 /* Check destination address. */
1161
1162 if (!SK_ADDR_EQUAL(pAPort->CurrentMacAddress.a, pRPacket->DstAddr) &&
1163 !SK_ADDR_EQUAL(SkRlmtMcAddr.a, pRPacket->DstAddr) &&
1164 !SK_ADDR_EQUAL(BridgeMcAddr.a, pRPacket->DstAddr)) {
1165
1166 /* Not sent to current MAC or registered MC address => Trash it. */
1167 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
1168 ("SkRlmtPacketReceive: Not for me.\n"))
1169
1170 SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
1171 return;
1172 }
1173 else if (SK_ADDR_EQUAL(pAPort->CurrentMacAddress.a, pRPacket->SrcAddr)) {
1174
1175 /*
1176 * Was sent by same port (may happen during port switching
1177 * or in case of duplicate MAC addresses).
1178 */
1179
1180 /*
1181 * Check for duplicate address here:
1182 * If Packet.Random != My.Random => DupAddr.
1183 */
1184 for (i = 3; i >= 0; i--) {
1185 if (pRPort->Random[i] != pRPacket->Random[i]) {
1186 break;
1187 }
1188 }
1189
1190 /*
1191 * CAUTION: Do not check for duplicate MAC address in RLMT Alive Reply
1192 * packets (they have the LLC_COMMAND_RESPONSE_BIT set in
1193 * pRPacket->SSap).
1194 */
1195 if (i >= 0 && pRPacket->DSap == SK_RLMT_DSAP &&
1196 pRPacket->Ctrl == SK_RLMT_CTRL &&
1197 pRPacket->SSap == SK_RLMT_SSAP &&
1198 pRPacket->Indicator[0] == SK_RLMT_INDICATOR0 &&
1199 pRPacket->Indicator[1] == SK_RLMT_INDICATOR1 &&
1200 pRPacket->Indicator[2] == SK_RLMT_INDICATOR2 &&
1201 pRPacket->Indicator[3] == SK_RLMT_INDICATOR3 &&
1202 pRPacket->Indicator[4] == SK_RLMT_INDICATOR4 &&
1203 pRPacket->Indicator[5] == SK_RLMT_INDICATOR5 &&
1204 pRPacket->Indicator[6] == SK_RLMT_INDICATOR6) {
1205 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
1206 ("SkRlmtPacketReceive: Duplicate MAC Address.\n"))
1207
1208 /* Error Log entry. */
1209 SK_ERR_LOG(pAC, SK_ERRCL_COMM, SKERR_RLMT_E006, SKERR_RLMT_E006_MSG);
1210 }
1211 else {
1212 /* Simply trash it. */
1213 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
1214 ("SkRlmtPacketReceive: Sent by me.\n"))
1215 }
1216
1217 SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
1218 return;
1219 }
1220
1221 /* Check SuspectTx entries. */
1222 if (pRPort->PortsSuspect > 0) {
1223 for (j = 0; j < pRPort->PortsChecked; j++) {
1224 if (pRPort->PortCheck[j].SuspectTx &&
1225 SK_ADDR_EQUAL(
1226 pRPacket->SrcAddr, pRPort->PortCheck[j].CheckAddr.a)) {
1227 pRPort->PortCheck[j].SuspectTx = SK_FALSE;
1228 pRPort->PortsSuspect--;
1229 break;
1230 }
1231 }
1232 }
1233
1234 /* Determine type of packet. */
1235 if (pRPacket->DSap == SK_RLMT_DSAP &&
1236 pRPacket->Ctrl == SK_RLMT_CTRL &&
1237 (pRPacket->SSap & ~LLC_COMMAND_RESPONSE_BIT) == SK_RLMT_SSAP &&
1238 pRPacket->Indicator[0] == SK_RLMT_INDICATOR0 &&
1239 pRPacket->Indicator[1] == SK_RLMT_INDICATOR1 &&
1240 pRPacket->Indicator[2] == SK_RLMT_INDICATOR2 &&
1241 pRPacket->Indicator[3] == SK_RLMT_INDICATOR3 &&
1242 pRPacket->Indicator[4] == SK_RLMT_INDICATOR4 &&
1243 pRPacket->Indicator[5] == SK_RLMT_INDICATOR5 &&
1244 pRPacket->Indicator[6] == SK_RLMT_INDICATOR6) {
1245
1246 /* It's an RLMT packet. */
1247 PacketType = (SK_U16)((pRPacket->RlmtPacketType[0] << 8) |
1248 pRPacket->RlmtPacketType[1]);
1249
1250 switch (PacketType) {
1251 case SK_PACKET_ANNOUNCE: /* Not yet used. */
1252#if 0
1253 /* Build the check chain. */
1254 SkRlmtBuildCheckChain(pAC);
1255#endif /* 0 */
1256
1257 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
1258 ("SkRlmtPacketReceive: Announce.\n"))
1259
1260 SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
1261 break;
1262
1263 case SK_PACKET_ALIVE:
1264 if (pRPacket->SSap & LLC_COMMAND_RESPONSE_BIT) {
1265 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
1266 ("SkRlmtPacketReceive: Alive Reply.\n"))
1267
1268 if (!(pAC->Addr.Port[PortNumber].PromMode & SK_PROM_MODE_LLC) ||
1269 SK_ADDR_EQUAL(
1270 pRPacket->DstAddr, pAPort->CurrentMacAddress.a)) {
1271 /* Obviously we could send something. */
1272 if (pRPort->CheckingState & SK_RLMT_PCS_TX) {
1273 pRPort->CheckingState &= ~SK_RLMT_PCS_TX;
1274 SkTimerStop(pAC, IoC, &pRPort->DownTxTimer);
1275 }
1276
1277 if ((pRPort->PortState == SK_RLMT_PS_DOWN) &&
1278 !(pRPort->CheckingState & SK_RLMT_PCS_RX)) {
1279 pRPort->PortState = SK_RLMT_PS_GOING_UP;
1280 pRPort->GuTimeStamp = SkOsGetTime(pAC);
1281
1282 SkTimerStop(pAC, IoC, &pRPort->DownTxTimer);
1283
1284 Para.Para32[0] = PortNumber;
1285 Para.Para32[1] = (SK_U32)-1;
1286 SkTimerStart(pAC, IoC, &pRPort->UpTimer,
1287 SK_RLMT_PORTUP_TIM_VAL, SKGE_RLMT,
1288 SK_RLMT_PORTUP_TIM, Para);
1289 }
1290 }
1291
1292 /* Mark sending port as alive? */
1293 SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
1294 }
1295 else { /* Alive Request Packet. */
1296 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
1297 ("SkRlmtPacketReceive: Alive Request.\n"))
1298
1299 pRPort->RxHelloCts++;
1300
1301 /* Answer. */
1302 for (i = 0; i < SK_MAC_ADDR_LEN; i++) {
1303 pRPacket->DstAddr[i] = pRPacket->SrcAddr[i];
1304 pRPacket->SrcAddr[i] =
1305 pAC->Addr.Port[PortNumber].CurrentMacAddress.a[i];
1306 }
1307 pRPacket->SSap |= LLC_COMMAND_RESPONSE_BIT;
1308
1309 Para.pParaPtr = pMb;
1310 SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
1311 }
1312 break;
1313
1314 case SK_PACKET_CHECK_TX:
1315 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
1316 ("SkRlmtPacketReceive: Check your tx line.\n"))
1317
1318 /* A port checking us requests us to check our tx line. */
1319 pRPort->CheckingState |= SK_RLMT_PCS_TX;
1320
1321 /* Start PortDownTx timer. */
1322 Para.Para32[0] = PortNumber;
1323 Para.Para32[1] = (SK_U32)-1;
1324 SkTimerStart(pAC, IoC, &pRPort->DownTxTimer,
1325 SK_RLMT_PORTDOWN_TIM_VAL, SKGE_RLMT,
1326 SK_RLMT_PORTDOWN_TX_TIM, Para);
1327
1328 SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
1329
1330 if ((Para.pParaPtr = SkRlmtBuildPacket(pAC, IoC, PortNumber,
1331 SK_PACKET_ALIVE, &pAC->Addr.Port[PortNumber].CurrentMacAddress,
1332 &SkRlmtMcAddr)) != NULL) {
1333 SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
1334 }
1335 break;
1336
1337 case SK_PACKET_ADDR_CHANGED:
1338 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
1339 ("SkRlmtPacketReceive: Address Change.\n"))
1340
1341 /* Build the check chain. */
1342 SkRlmtBuildCheckChain(pAC, pRPort->Net->NetNumber);
1343 SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
1344 break;
1345
1346 default:
1347 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
1348 ("SkRlmtPacketReceive: Unknown RLMT packet.\n"))
1349
1350 /* RA;:;: ??? */
1351 SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
1352 }
1353 }
1354 else if (pSPacket->DSap == SK_RLMT_SPT_DSAP &&
1355 pSPacket->Ctrl == SK_RLMT_SPT_CTRL &&
1356 (pSPacket->SSap & ~LLC_COMMAND_RESPONSE_BIT) == SK_RLMT_SPT_SSAP) {
1357 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
1358 ("SkRlmtPacketReceive: BPDU Packet.\n"))
1359
1360 /* Spanning Tree packet. */
1361 pRPort->RxSpHelloCts++;
1362
1363 if (!SK_ADDR_EQUAL(&pSPacket->RootId[2], &pAC->Addr.Net[pAC->Rlmt.
1364 Port[PortNumber].Net->NetNumber].CurrentMacAddress.a[0])) {
1365 /*
1366 * Check segmentation if a new root bridge is set and
1367 * the segmentation check is not currently running.
1368 */
1369 if (!SK_ADDR_EQUAL(&pSPacket->RootId[2], &pRPort->Root.Id[2]) &&
1370 (pAC->Rlmt.Port[PortNumber].Net->LinksUp > 1) &&
1371 (pAC->Rlmt.Port[PortNumber].Net->RlmtMode & SK_RLMT_CHECK_SEG)
1372 != 0 && (pAC->Rlmt.Port[PortNumber].Net->CheckingState &
1373 SK_RLMT_RCS_SEG) == 0) {
1374 pAC->Rlmt.Port[PortNumber].Net->CheckingState |=
1375 SK_RLMT_RCS_START_SEG | SK_RLMT_RCS_SEND_SEG;
1376 }
1377
1378 /* Store tree view of this port. */
1379 for (i = 0; i < 8; i++) {
1380 pRPort->Root.Id[i] = pSPacket->RootId[i];
1381 }
1382 pRPort->RootIdSet = SK_TRUE;
1383
1384 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_DUMP,
1385 ("Root ID %d: %02x %02x %02x %02x %02x %02x %02x %02x.\n",
1386 PortNumber,
1387 pRPort->Root.Id[0], pRPort->Root.Id[1],
1388 pRPort->Root.Id[2], pRPort->Root.Id[3],
1389 pRPort->Root.Id[4], pRPort->Root.Id[5],
1390 pRPort->Root.Id[6], pRPort->Root.Id[7]))
1391 }
1392
1393 SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
1394 if ((pAC->Rlmt.Port[PortNumber].Net->CheckingState &
1395 SK_RLMT_RCS_REPORT_SEG) != 0) {
1396 SkRlmtCheckSeg(pAC, IoC, pAC->Rlmt.Port[PortNumber].Net->NetNumber);
1397 }
1398 }
1399 else {
1400 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_RX,
1401 ("SkRlmtPacketReceive: Unknown Packet Type.\n"))
1402
1403 /* Unknown packet. */
1404 SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
1405 }
1406 return;
1407} /* SkRlmtPacketReceive */
1408
1409
1410/******************************************************************************
1411 *
1412 * SkRlmtCheckPort - check if a port works
1413 *
1414 * Description:
1415 * This routine checks if a port whose link is up received something
1416 * and if it seems to transmit successfully.
1417 *
1418 * # PortState: PsInit, PsLinkDown, PsDown, PsGoingUp, PsUp
1419 * # PortCheckingState (Bitfield): ChkTx, ChkRx, ChkSeg
1420 * # RlmtCheckingState (Bitfield): ChkSeg, StartChkSeg, ReportSeg
1421 *
1422 * if (Rx - RxBpdu == 0) { # No rx.
1423 * if (state == PsUp) {
1424 * PortCheckingState |= ChkRx
1425 * }
1426 * if (ModeCheckSeg && (Timeout ==
1427 * TO_SHORTEN(RLMT_DEFAULT_TIMEOUT))) {
1428 * RlmtCheckingState |= ChkSeg)
1429 * PortCheckingState |= ChkSeg
1430 * }
1431 * NewTimeout = TO_SHORTEN(Timeout)
1432 * if (NewTimeout < RLMT_MIN_TIMEOUT) {
1433 * NewTimeout = RLMT_MIN_TIMEOUT
1434 * PortState = PsDown
1435 * ...
1436 * }
1437 * }
1438 * else { # something was received
1439 * # Set counter to 0 at LinkDown?
1440 * # No - rx may be reported after LinkDown ???
1441 * PortCheckingState &= ~ChkRx
1442 * NewTimeout = RLMT_DEFAULT_TIMEOUT
1443 * if (RxAck == 0) {
1444 * possible reasons:
1445 * is my tx line bad? --
1446 * send RLMT multicast and report
1447 * back internally? (only possible
1448 * between ports on same adapter)
1449 * }
1450 * if (RxChk == 0) {
1451 * possible reasons:
1452 * - tx line of port set to check me
1453 * maybe bad
1454 * - no other port/adapter available or set
1455 * to check me
1456 * - adapter checking me has a longer
1457 * timeout
1458 * ??? anything that can be done here?
1459 * }
1460 * }
1461 *
1462 * Context:
1463 * runtime, pageable?
1464 *
1465 * Returns:
1466 * New timeout value.
1467 */
1468RLMT_STATIC SK_U32 SkRlmtCheckPort(
1469SK_AC *pAC, /* Adapter Context */
1470SK_IOC IoC, /* I/O Context */
1471SK_U32 PortNumber) /* Port to check */
1472{
1473 unsigned i;
1474 SK_U32 NewTimeout;
1475 SK_RLMT_PORT *pRPort;
1476 SK_EVPARA Para;
1477
1478 pRPort = &pAC->Rlmt.Port[PortNumber];
1479
1480 if ((pRPort->PacketsPerTimeSlot - pRPort->BpduPacketsPerTimeSlot) == 0) {
1481 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
1482 ("SkRlmtCheckPort %d: No (%d) receives in last time slot.\n",
1483 PortNumber, pRPort->PacketsPerTimeSlot))
1484
1485 /*
1486 * Check segmentation if there was no receive at least twice
1487 * in a row (PortNoRx is already set) and the segmentation
1488 * check is not currently running.
1489 */
1490
1491 if (pRPort->PortNoRx && (pAC->Rlmt.Port[PortNumber].Net->LinksUp > 1) &&
1492 (pAC->Rlmt.Port[PortNumber].Net->RlmtMode & SK_RLMT_CHECK_SEG) &&
1493 !(pAC->Rlmt.Port[PortNumber].Net->CheckingState & SK_RLMT_RCS_SEG)) {
1494 pAC->Rlmt.Port[PortNumber].Net->CheckingState |=
1495 SK_RLMT_RCS_START_SEG | SK_RLMT_RCS_SEND_SEG;
1496 }
1497
1498 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
1499 ("SkRlmtCheckPort: PortsSuspect %d, PcsRx %d.\n",
1500 pRPort->PortsSuspect, pRPort->CheckingState & SK_RLMT_PCS_RX))
1501
1502 if (pRPort->PortState != SK_RLMT_PS_DOWN) {
1503 NewTimeout = TO_SHORTEN(pAC->Rlmt.Port[PortNumber].Net->TimeoutValue);
1504 if (NewTimeout < SK_RLMT_MIN_TO_VAL) {
1505 NewTimeout = SK_RLMT_MIN_TO_VAL;
1506 }
1507
1508 if (!(pRPort->CheckingState & SK_RLMT_PCS_RX)) {
1509 Para.Para32[0] = PortNumber;
1510 pRPort->CheckingState |= SK_RLMT_PCS_RX;
1511
1512 /*
1513 * What shall we do if the port checked by this one receives
1514 * our request frames? What's bad - our rx line or his tx line?
1515 */
1516 Para.Para32[1] = (SK_U32)-1;
1517 SkTimerStart(pAC, IoC, &pRPort->DownRxTimer,
1518 SK_RLMT_PORTDOWN_TIM_VAL, SKGE_RLMT,
1519 SK_RLMT_PORTDOWN_RX_TIM, Para);
1520
1521 for (i = 0; i < pRPort->PortsChecked; i++) {
1522 if (pRPort->PortCheck[i].SuspectTx) {
1523 continue;
1524 }
1525 pRPort->PortCheck[i].SuspectTx = SK_TRUE;
1526 pRPort->PortsSuspect++;
1527 if ((Para.pParaPtr =
1528 SkRlmtBuildPacket(pAC, IoC, PortNumber, SK_PACKET_CHECK_TX,
1529 &pAC->Addr.Port[PortNumber].CurrentMacAddress,
1530 &pRPort->PortCheck[i].CheckAddr)) != NULL) {
1531 SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
1532 }
1533 }
1534 }
1535 }
1536 else { /* PortDown -- or all partners suspect. */
1537 NewTimeout = SK_RLMT_DEF_TO_VAL;
1538 }
1539 pRPort->PortNoRx = SK_TRUE;
1540 }
1541 else { /* A non-BPDU packet was received. */
1542 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
1543 ("SkRlmtCheckPort %d: %d (%d) receives in last time slot.\n",
1544 PortNumber,
1545 pRPort->PacketsPerTimeSlot - pRPort->BpduPacketsPerTimeSlot,
1546 pRPort->PacketsPerTimeSlot))
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1547
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1548 SkRlmtPortReceives(pAC, IoC, PortNumber);
1549 if (pAC->Rlmt.CheckSwitch) {
1550 SkRlmtCheckSwitch(pAC, IoC, pRPort->Net->NetNumber);
1551 }
1552
1553 NewTimeout = SK_RLMT_DEF_TO_VAL;
1554 }
1555
1556 return (NewTimeout);
1557} /* SkRlmtCheckPort */
1558
1559
1560/******************************************************************************
1561 *
1562 * SkRlmtSelectBcRx - select new active port, criteria 1 (CLP)
1563 *
1564 * Description:
1565 * This routine selects the port that received a broadcast frame
1566 * substantially later than all other ports.
1567 *
1568 * Context:
1569 * runtime, pageable?
1570 *
1571 * Returns:
1572 * SK_BOOL
1573 */
1574RLMT_STATIC SK_BOOL SkRlmtSelectBcRx(
1575SK_AC *pAC, /* Adapter Context */
1576SK_IOC IoC, /* I/O Context */
1577SK_U32 Active, /* Active port */
1578SK_U32 PrefPort, /* Preferred port */
1579SK_U32 *pSelect) /* New active port */
1580{
1581 SK_U64 BcTimeStamp;
1582 SK_U32 i;
1583 SK_BOOL PortFound;
1584
1585 BcTimeStamp = 0; /* Not totally necessary, but feeling better. */
1586 PortFound = SK_FALSE;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1587
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1588 /* Select port with the latest TimeStamp. */
1589 for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
1590
1591 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
1592 ("TimeStamp Port %d (Down: %d, NoRx: %d): %08x %08x.\n",
1593 i,
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1594 pAC->Rlmt.Port[i].PortDown, pAC->Rlmt.Port[i].PortNoRx,
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1595 *((SK_U32*)(&pAC->Rlmt.Port[i].BcTimeStamp) + OFFS_HI32),
1596 *((SK_U32*)(&pAC->Rlmt.Port[i].BcTimeStamp) + OFFS_LO32)))
1597
1598 if (!pAC->Rlmt.Port[i].PortDown && !pAC->Rlmt.Port[i].PortNoRx) {
1599 if (!PortFound || pAC->Rlmt.Port[i].BcTimeStamp > BcTimeStamp) {
1600 BcTimeStamp = pAC->Rlmt.Port[i].BcTimeStamp;
1601 *pSelect = i;
1602 PortFound = SK_TRUE;
1603 }
1604 }
1605 }
1606
1607 if (PortFound) {
1608 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
1609 ("Port %d received the last broadcast.\n", *pSelect))
1610
1611 /* Look if another port's time stamp is similar. */
1612 for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
1613 if (i == *pSelect) {
1614 continue;
1615 }
1616 if (!pAC->Rlmt.Port[i].PortDown && !pAC->Rlmt.Port[i].PortNoRx &&
1617 (pAC->Rlmt.Port[i].BcTimeStamp >
1618 BcTimeStamp - SK_RLMT_BC_DELTA ||
1619 pAC->Rlmt.Port[i].BcTimeStamp +
1620 SK_RLMT_BC_DELTA > BcTimeStamp)) {
1621 PortFound = SK_FALSE;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1622
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1623 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
1624 ("Port %d received a broadcast at a similar time.\n", i))
1625 break;
1626 }
1627 }
1628 }
1629
1630#ifdef DEBUG
1631 if (PortFound) {
1632 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
1633 ("SK_RLMT_SELECT_BCRX found Port %d receiving the substantially "
1634 "latest broadcast (%u).\n",
1635 *pSelect,
1636 BcTimeStamp - pAC->Rlmt.Port[1 - *pSelect].BcTimeStamp))
1637 }
1638#endif /* DEBUG */
1639
1640 return (PortFound);
1641} /* SkRlmtSelectBcRx */
1642
1643
1644/******************************************************************************
1645 *
1646 * SkRlmtSelectNotSuspect - select new active port, criteria 2 (CLP)
1647 *
1648 * Description:
1649 * This routine selects a good port (it is PortUp && !SuspectRx).
1650 *
1651 * Context:
1652 * runtime, pageable?
1653 *
1654 * Returns:
1655 * SK_BOOL
1656 */
1657RLMT_STATIC SK_BOOL SkRlmtSelectNotSuspect(
1658SK_AC *pAC, /* Adapter Context */
1659SK_IOC IoC, /* I/O Context */
1660SK_U32 Active, /* Active port */
1661SK_U32 PrefPort, /* Preferred port */
1662SK_U32 *pSelect) /* New active port */
1663{
1664 SK_U32 i;
1665 SK_BOOL PortFound;
1666
1667 PortFound = SK_FALSE;
1668
1669 /* Select first port that is PortUp && !SuspectRx. */
1670 for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
1671 if (!pAC->Rlmt.Port[i].PortDown &&
1672 !(pAC->Rlmt.Port[i].CheckingState & SK_RLMT_PCS_RX)) {
1673 *pSelect = i;
1674 if (!pAC->Rlmt.Port[Active].PortDown &&
1675 !(pAC->Rlmt.Port[Active].CheckingState & SK_RLMT_PCS_RX)) {
1676 *pSelect = Active;
1677 }
1678 if (!pAC->Rlmt.Port[PrefPort].PortDown &&
1679 !(pAC->Rlmt.Port[PrefPort].CheckingState & SK_RLMT_PCS_RX)) {
1680 *pSelect = PrefPort;
1681 }
1682 PortFound = SK_TRUE;
1683 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
1684 ("SK_RLMT_SELECT_NOTSUSPECT found Port %d up and not check RX.\n",
1685 *pSelect))
1686 break;
1687 }
1688 }
1689 return (PortFound);
1690} /* SkRlmtSelectNotSuspect */
1691
1692
1693/******************************************************************************
1694 *
1695 * SkRlmtSelectUp - select new active port, criteria 3, 4 (CLP)
1696 *
1697 * Description:
1698 * This routine selects a port that is up.
1699 *
1700 * Context:
1701 * runtime, pageable?
1702 *
1703 * Returns:
1704 * SK_BOOL
1705 */
1706RLMT_STATIC SK_BOOL SkRlmtSelectUp(
1707SK_AC *pAC, /* Adapter Context */
1708SK_IOC IoC, /* I/O Context */
1709SK_U32 Active, /* Active port */
1710SK_U32 PrefPort, /* Preferred port */
1711SK_U32 *pSelect, /* New active port */
1712SK_BOOL AutoNegDone) /* Successfully auto-negotiated? */
1713{
1714 SK_U32 i;
1715 SK_BOOL PortFound;
1716
1717 PortFound = SK_FALSE;
1718
1719 /* Select first port that is PortUp. */
1720 for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
1721 if (pAC->Rlmt.Port[i].PortState == SK_RLMT_PS_UP &&
1722 pAC->GIni.GP[i].PAutoNegFail != AutoNegDone) {
1723 *pSelect = i;
1724 if (pAC->Rlmt.Port[Active].PortState == SK_RLMT_PS_UP &&
1725 pAC->GIni.GP[Active].PAutoNegFail != AutoNegDone) {
1726 *pSelect = Active;
1727 }
1728 if (pAC->Rlmt.Port[PrefPort].PortState == SK_RLMT_PS_UP &&
1729 pAC->GIni.GP[PrefPort].PAutoNegFail != AutoNegDone) {
1730 *pSelect = PrefPort;
1731 }
1732 PortFound = SK_TRUE;
1733 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
1734 ("SK_RLMT_SELECT_UP found Port %d up.\n", *pSelect))
1735 break;
1736 }
1737 }
1738 return (PortFound);
1739} /* SkRlmtSelectUp */
1740
1741
1742/******************************************************************************
1743 *
1744 * SkRlmtSelectGoingUp - select new active port, criteria 5, 6 (CLP)
1745 *
1746 * Description:
1747 * This routine selects the port that is going up for the longest time.
1748 *
1749 * Context:
1750 * runtime, pageable?
1751 *
1752 * Returns:
1753 * SK_BOOL
1754 */
1755RLMT_STATIC SK_BOOL SkRlmtSelectGoingUp(
1756SK_AC *pAC, /* Adapter Context */
1757SK_IOC IoC, /* I/O Context */
1758SK_U32 Active, /* Active port */
1759SK_U32 PrefPort, /* Preferred port */
1760SK_U32 *pSelect, /* New active port */
1761SK_BOOL AutoNegDone) /* Successfully auto-negotiated? */
1762{
1763 SK_U64 GuTimeStamp;
1764 SK_U32 i;
1765 SK_BOOL PortFound;
1766
1767 GuTimeStamp = 0;
1768 PortFound = SK_FALSE;
1769
1770 /* Select port that is PortGoingUp for the longest time. */
1771 for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
1772 if (pAC->Rlmt.Port[i].PortState == SK_RLMT_PS_GOING_UP &&
1773 pAC->GIni.GP[i].PAutoNegFail != AutoNegDone) {
1774 GuTimeStamp = pAC->Rlmt.Port[i].GuTimeStamp;
1775 *pSelect = i;
1776 PortFound = SK_TRUE;
1777 break;
1778 }
1779 }
1780
1781 if (!PortFound) {
1782 return (SK_FALSE);
1783 }
1784
1785 for (i = *pSelect + 1; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
1786 if (pAC->Rlmt.Port[i].PortState == SK_RLMT_PS_GOING_UP &&
1787 pAC->Rlmt.Port[i].GuTimeStamp < GuTimeStamp &&
1788 pAC->GIni.GP[i].PAutoNegFail != AutoNegDone) {
1789 GuTimeStamp = pAC->Rlmt.Port[i].GuTimeStamp;
1790 *pSelect = i;
1791 }
1792 }
1793
1794 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
1795 ("SK_RLMT_SELECT_GOINGUP found Port %d going up.\n", *pSelect))
1796 return (SK_TRUE);
1797} /* SkRlmtSelectGoingUp */
1798
1799
1800/******************************************************************************
1801 *
1802 * SkRlmtSelectDown - select new active port, criteria 7, 8 (CLP)
1803 *
1804 * Description:
1805 * This routine selects a port that is down.
1806 *
1807 * Context:
1808 * runtime, pageable?
1809 *
1810 * Returns:
1811 * SK_BOOL
1812 */
1813RLMT_STATIC SK_BOOL SkRlmtSelectDown(
1814SK_AC *pAC, /* Adapter Context */
1815SK_IOC IoC, /* I/O Context */
1816SK_U32 Active, /* Active port */
1817SK_U32 PrefPort, /* Preferred port */
1818SK_U32 *pSelect, /* New active port */
1819SK_BOOL AutoNegDone) /* Successfully auto-negotiated? */
1820{
1821 SK_U32 i;
1822 SK_BOOL PortFound;
1823
1824 PortFound = SK_FALSE;
1825
1826 /* Select first port that is PortDown. */
1827 for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
1828 if (pAC->Rlmt.Port[i].PortState == SK_RLMT_PS_DOWN &&
1829 pAC->GIni.GP[i].PAutoNegFail != AutoNegDone) {
1830 *pSelect = i;
1831 if (pAC->Rlmt.Port[Active].PortState == SK_RLMT_PS_DOWN &&
1832 pAC->GIni.GP[Active].PAutoNegFail != AutoNegDone) {
1833 *pSelect = Active;
1834 }
1835 if (pAC->Rlmt.Port[PrefPort].PortState == SK_RLMT_PS_DOWN &&
1836 pAC->GIni.GP[PrefPort].PAutoNegFail != AutoNegDone) {
1837 *pSelect = PrefPort;
1838 }
1839 PortFound = SK_TRUE;
1840 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
1841 ("SK_RLMT_SELECT_DOWN found Port %d down.\n", *pSelect))
1842 break;
1843 }
1844 }
1845 return (PortFound);
1846} /* SkRlmtSelectDown */
1847
1848
1849/******************************************************************************
1850 *
1851 * SkRlmtCheckSwitch - select new active port and switch to it
1852 *
1853 * Description:
1854 * This routine decides which port should be the active one and queues
1855 * port switching if necessary.
1856 *
1857 * Context:
1858 * runtime, pageable?
1859 *
1860 * Returns:
1861 * Nothing.
1862 */
1863RLMT_STATIC void SkRlmtCheckSwitch(
1864SK_AC *pAC, /* Adapter Context */
1865SK_IOC IoC, /* I/O Context */
1866SK_U32 NetIdx) /* Net index */
1867{
1868 SK_EVPARA Para;
1869 SK_U32 Active;
1870 SK_U32 PrefPort;
1871 SK_U32 i;
1872 SK_BOOL PortFound;
1873
1874 Active = pAC->Rlmt.Net[NetIdx].ActivePort; /* Index of active port. */
1875 PrefPort = pAC->Rlmt.Net[NetIdx].PrefPort; /* Index of preferred port. */
1876 PortFound = SK_FALSE;
1877 pAC->Rlmt.CheckSwitch = SK_FALSE;
1878
1879#if 0 /* RW 2001/10/18 - active port becomes always prefered one */
1880 if (pAC->Rlmt.Net[NetIdx].Preference == 0xFFFFFFFF) { /* Automatic */
1881 /* disable auto-fail back */
1882 PrefPort = Active;
1883 }
1884#endif
1885
1886 if (pAC->Rlmt.Net[NetIdx].LinksUp == 0) {
1887 /* Last link went down - shut down the net. */
1888 pAC->Rlmt.Net[NetIdx].RlmtState = SK_RLMT_RS_NET_DOWN;
1889 Para.Para32[0] = SK_RLMT_NET_DOWN_TEMP;
1890 Para.Para32[1] = NetIdx;
1891 SkEventQueue(pAC, SKGE_DRV, SK_DRV_NET_DOWN, Para);
1892
1893 Para.Para32[0] = pAC->Rlmt.Net[NetIdx].
1894 Port[pAC->Rlmt.Net[NetIdx].ActivePort]->PortNumber;
1895 Para.Para32[1] = NetIdx;
1896 SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_ACTIVE_DOWN, Para);
1897 return;
1898 } /* pAC->Rlmt.LinksUp == 0 */
1899 else if (pAC->Rlmt.Net[NetIdx].LinksUp == 1 &&
1900 pAC->Rlmt.Net[NetIdx].RlmtState == SK_RLMT_RS_NET_DOWN) {
1901 /* First link came up - get the net up. */
1902 pAC->Rlmt.Net[NetIdx].RlmtState = SK_RLMT_RS_NET_UP;
1903
1904 /*
1905 * If pAC->Rlmt.ActivePort != Para.Para32[0],
1906 * the DRV switches to the port that came up.
1907 */
1908 for (i = 0; i < pAC->Rlmt.Net[NetIdx].NumPorts; i++) {
1909 if (!pAC->Rlmt.Net[NetIdx].Port[i]->LinkDown) {
1910 if (!pAC->Rlmt.Net[NetIdx].Port[Active]->LinkDown) {
1911 i = Active;
1912 }
1913 if (!pAC->Rlmt.Net[NetIdx].Port[PrefPort]->LinkDown) {
1914 i = PrefPort;
1915 }
1916 PortFound = SK_TRUE;
1917 break;
1918 }
1919 }
1920
1921 if (PortFound) {
1922 Para.Para32[0] = pAC->Rlmt.Net[NetIdx].Port[i]->PortNumber;
1923 Para.Para32[1] = NetIdx;
1924 SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_ACTIVE_UP, Para);
1925
1926 pAC->Rlmt.Net[NetIdx].ActivePort = i;
1927 Para.Para32[0] = pAC->Rlmt.Net[NetIdx].Port[i]->PortNumber;
1928 Para.Para32[1] = NetIdx;
1929 SkEventQueue(pAC, SKGE_DRV, SK_DRV_NET_UP, Para);
1930
1931 if ((pAC->Rlmt.Net[NetIdx].RlmtMode & SK_RLMT_TRANSPARENT) == 0 &&
1932 (Para.pParaPtr = SkRlmtBuildPacket(pAC, IoC,
1933 pAC->Rlmt.Net[NetIdx].Port[i]->PortNumber,
1934 SK_PACKET_ANNOUNCE, &pAC->Addr.Net[NetIdx].
1935 CurrentMacAddress, &SkRlmtMcAddr)) != NULL) {
1936 /*
1937 * Send announce packet to RLMT multicast address to force
1938 * switches to learn the new location of the logical MAC address.
1939 */
1940 SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
1941 }
1942 }
1943 else {
1944 SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_RLMT_E007, SKERR_RLMT_E007_MSG);
1945 }
1946
1947 return;
1948 } /* LinksUp == 1 && RlmtState == SK_RLMT_RS_NET_DOWN */
1949 else { /* Cannot be reached in dual-net mode. */
1950 Para.Para32[0] = Active;
1951
1952 /*
1953 * Preselection:
1954 * If RLMT Mode != CheckLinkState
1955 * select port that received a broadcast frame substantially later
1956 * than all other ports
1957 * else select first port that is not SuspectRx
1958 * else select first port that is PortUp
1959 * else select port that is PortGoingUp for the longest time
1960 * else select first port that is PortDown
1961 * else stop.
1962 *
1963 * For the preselected port:
1964 * If ActivePort is equal in quality, select ActivePort.
1965 *
1966 * If PrefPort is equal in quality, select PrefPort.
1967 *
1968 * If ActivePort != SelectedPort,
1969 * If old ActivePort is LinkDown,
1970 * SwitchHard
1971 * else
1972 * SwitchSoft
1973 */
1974 /* check of ChgBcPrio flag added */
1975 if ((pAC->Rlmt.Net[0].RlmtMode != SK_RLMT_MODE_CLS) &&
1976 (!pAC->Rlmt.Net[0].ChgBcPrio)) {
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]1977
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]1978 if (!PortFound) {
1979 PortFound = SkRlmtSelectBcRx(
1980 pAC, IoC, Active, PrefPort, &Para.Para32[1]);
1981 }
1982
1983 if (!PortFound) {
1984 PortFound = SkRlmtSelectNotSuspect(
1985 pAC, IoC, Active, PrefPort, &Para.Para32[1]);
1986 }
1987 } /* pAC->Rlmt.RlmtMode != SK_RLMT_MODE_CLS */
1988
1989 /* with changed priority for last broadcast received */
1990 if ((pAC->Rlmt.Net[0].RlmtMode != SK_RLMT_MODE_CLS) &&
1991 (pAC->Rlmt.Net[0].ChgBcPrio)) {
1992 if (!PortFound) {
1993 PortFound = SkRlmtSelectNotSuspect(
1994 pAC, IoC, Active, PrefPort, &Para.Para32[1]);
1995 }
1996
1997 if (!PortFound) {
1998 PortFound = SkRlmtSelectBcRx(
1999 pAC, IoC, Active, PrefPort, &Para.Para32[1]);
2000 }
2001 } /* pAC->Rlmt.RlmtMode != SK_RLMT_MODE_CLS */
2002
2003 if (!PortFound) {
2004 PortFound = SkRlmtSelectUp(
2005 pAC, IoC, Active, PrefPort, &Para.Para32[1], AUTONEG_SUCCESS);
2006 }
2007
2008 if (!PortFound) {
2009 PortFound = SkRlmtSelectUp(
2010 pAC, IoC, Active, PrefPort, &Para.Para32[1], AUTONEG_FAILED);
2011 }
2012
2013 if (!PortFound) {
2014 PortFound = SkRlmtSelectGoingUp(
2015 pAC, IoC, Active, PrefPort, &Para.Para32[1], AUTONEG_SUCCESS);
2016 }
2017
2018 if (!PortFound) {
2019 PortFound = SkRlmtSelectGoingUp(
2020 pAC, IoC, Active, PrefPort, &Para.Para32[1], AUTONEG_FAILED);
2021 }
2022
2023 if (pAC->Rlmt.Net[0].RlmtMode != SK_RLMT_MODE_CLS) {
2024 if (!PortFound) {
2025 PortFound = SkRlmtSelectDown(pAC, IoC,
2026 Active, PrefPort, &Para.Para32[1], AUTONEG_SUCCESS);
2027 }
2028
2029 if (!PortFound) {
2030 PortFound = SkRlmtSelectDown(pAC, IoC,
2031 Active, PrefPort, &Para.Para32[1], AUTONEG_FAILED);
2032 }
2033 } /* pAC->Rlmt.RlmtMode != SK_RLMT_MODE_CLS */
2034
2035 if (PortFound) {
2036
2037 if (Para.Para32[1] != Active) {
2038 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2039 ("Active: %d, Para1: %d.\n", Active, Para.Para32[1]))
2040 pAC->Rlmt.Net[NetIdx].ActivePort = Para.Para32[1];
2041 Para.Para32[0] = pAC->Rlmt.Net[NetIdx].
2042 Port[Para.Para32[0]]->PortNumber;
2043 Para.Para32[1] = pAC->Rlmt.Net[NetIdx].
2044 Port[Para.Para32[1]]->PortNumber;
2045 SK_HWAC_LINK_LED(pAC, IoC, Para.Para32[1], SK_LED_ACTIVE);
2046 if (pAC->Rlmt.Port[Active].LinkDown) {
2047 SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_HARD, Para);
2048 }
2049 else {
2050 SK_HWAC_LINK_LED(pAC, IoC, Para.Para32[0], SK_LED_STANDBY);
2051 SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_SOFT, Para);
2052 }
2053 Para.Para32[1] = NetIdx;
2054 Para.Para32[0] =
2055 pAC->Rlmt.Net[NetIdx].Port[Para.Para32[0]]->PortNumber;
2056 SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_ACTIVE_DOWN, Para);
2057 Para.Para32[0] = pAC->Rlmt.Net[NetIdx].
2058 Port[pAC->Rlmt.Net[NetIdx].ActivePort]->PortNumber;
2059 SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_ACTIVE_UP, Para);
2060 if ((pAC->Rlmt.Net[NetIdx].RlmtMode & SK_RLMT_TRANSPARENT) == 0 &&
2061 (Para.pParaPtr = SkRlmtBuildPacket(pAC, IoC, Para.Para32[0],
2062 SK_PACKET_ANNOUNCE, &pAC->Addr.Net[NetIdx].CurrentMacAddress,
2063 &SkRlmtMcAddr)) != NULL) {
2064 /*
2065 * Send announce packet to RLMT multicast address to force
2066 * switches to learn the new location of the logical
2067 * MAC address.
2068 */
2069 SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para);
2070 } /* (Para.pParaPtr = SkRlmtBuildPacket(...)) != NULL */
2071 } /* Para.Para32[1] != Active */
2072 } /* PortFound */
2073 else {
2074 SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_RLMT_E004, SKERR_RLMT_E004_MSG);
2075 }
2076 } /* LinksUp > 1 || LinksUp == 1 && RlmtState != SK_RLMT_RS_NET_DOWN */
2077 return;
2078} /* SkRlmtCheckSwitch */
2079
2080
2081/******************************************************************************
2082 *
2083 * SkRlmtCheckSeg - Report if segmentation is detected
2084 *
2085 * Description:
2086 * This routine checks if the ports see different root bridges and reports
2087 * segmentation in such a case.
2088 *
2089 * Context:
2090 * runtime, pageable?
2091 *
2092 * Returns:
2093 * Nothing.
2094 */
2095RLMT_STATIC void SkRlmtCheckSeg(
2096SK_AC *pAC, /* Adapter Context */
2097SK_IOC IoC, /* I/O Context */
2098SK_U32 NetIdx) /* Net number */
2099{
2100 SK_EVPARA Para;
2101 SK_RLMT_NET *pNet;
2102 SK_U32 i, j;
2103 SK_BOOL Equal;
2104
2105 pNet = &pAC->Rlmt.Net[NetIdx];
2106 pNet->RootIdSet = SK_FALSE;
2107 Equal = SK_TRUE;
2108
2109 for (i = 0; i < pNet->NumPorts; i++) {
2110 if (pNet->Port[i]->LinkDown || !pNet->Port[i]->RootIdSet) {
2111 continue;
2112 }
2113
2114 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_DUMP,
2115 ("Root ID %d: %02x %02x %02x %02x %02x %02x %02x %02x.\n", i,
2116 pNet->Port[i]->Root.Id[0], pNet->Port[i]->Root.Id[1],
2117 pNet->Port[i]->Root.Id[2], pNet->Port[i]->Root.Id[3],
2118 pNet->Port[i]->Root.Id[4], pNet->Port[i]->Root.Id[5],
2119 pNet->Port[i]->Root.Id[6], pNet->Port[i]->Root.Id[7]))
2120
2121 if (!pNet->RootIdSet) {
2122 pNet->Root = pNet->Port[i]->Root;
2123 pNet->RootIdSet = SK_TRUE;
2124 continue;
2125 }
2126
2127 for (j = 0; j < 8; j ++) {
2128 Equal &= pNet->Port[i]->Root.Id[j] == pNet->Root.Id[j];
2129 if (!Equal) {
2130 break;
2131 }
2132 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2133
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2134 if (!Equal) {
2135 SK_ERR_LOG(pAC, SK_ERRCL_COMM, SKERR_RLMT_E005, SKERR_RLMT_E005_MSG);
2136 Para.Para32[0] = NetIdx;
2137 Para.Para32[1] = (SK_U32)-1;
2138 SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_SEGMENTATION, Para);
2139
2140 pNet->CheckingState &= ~SK_RLMT_RCS_REPORT_SEG;
2141
2142 /* 2000-03-06 RA: New. */
2143 Para.Para32[0] = NetIdx;
2144 Para.Para32[1] = (SK_U32)-1;
2145 SkTimerStart(pAC, IoC, &pNet->SegTimer, SK_RLMT_SEG_TO_VAL,
2146 SKGE_RLMT, SK_RLMT_SEG_TIM, Para);
2147 break;
2148 }
2149 } /* for (i = 0; i < pNet->NumPorts; i++) */
2150
2151 /* 2000-03-06 RA: Moved here. */
2152 /* Segmentation check not running anymore. */
2153 pNet->CheckingState &= ~SK_RLMT_RCS_SEG;
2154
2155} /* SkRlmtCheckSeg */
2156
2157
2158/******************************************************************************
2159 *
2160 * SkRlmtPortStart - initialize port variables and start port
2161 *
2162 * Description:
2163 * This routine initializes a port's variables and issues a PORT_START
2164 * to the HWAC module. This handles retries if the start fails or the
2165 * link eventually goes down.
2166 *
2167 * Context:
2168 * runtime, pageable?
2169 *
2170 * Returns:
2171 * Nothing
2172 */
2173RLMT_STATIC void SkRlmtPortStart(
2174SK_AC *pAC, /* Adapter Context */
2175SK_IOC IoC, /* I/O Context */
2176SK_U32 PortNumber) /* Port number */
2177{
2178 SK_EVPARA Para;
2179
2180 pAC->Rlmt.Port[PortNumber].PortState = SK_RLMT_PS_LINK_DOWN;
2181 pAC->Rlmt.Port[PortNumber].PortStarted = SK_TRUE;
2182 pAC->Rlmt.Port[PortNumber].LinkDown = SK_TRUE;
2183 pAC->Rlmt.Port[PortNumber].PortDown = SK_TRUE;
2184 pAC->Rlmt.Port[PortNumber].CheckingState = 0;
2185 pAC->Rlmt.Port[PortNumber].RootIdSet = SK_FALSE;
2186 Para.Para32[0] = PortNumber;
2187 Para.Para32[1] = (SK_U32)-1;
2188 SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_START, Para);
2189} /* SkRlmtPortStart */
2190
2191
2192/******************************************************************************
2193 *
2194 * SkRlmtEvtPortStartTim - PORT_START_TIM
2195 *
2196 * Description:
2197 * This routine handles PORT_START_TIM events.
2198 *
2199 * Context:
2200 * runtime, pageable?
2201 * may be called after SK_INIT_IO
2202 *
2203 * Returns:
2204 * Nothing
2205 */
2206RLMT_STATIC void SkRlmtEvtPortStartTim(
2207SK_AC *pAC, /* Adapter Context */
2208SK_IOC IoC, /* I/O Context */
2209SK_EVPARA Para) /* SK_U32 PortNumber; SK_U32 -1 */
2210{
2211 SK_U32 i;
2212
2213 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2214 ("SK_RLMT_PORTSTART_TIMEOUT Port %d Event BEGIN.\n", Para.Para32[0]))
2215
2216 if (Para.Para32[1] != (SK_U32)-1) {
2217 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2218 ("Bad Parameter.\n"))
2219 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2220 ("SK_RLMT_PORTSTART_TIMEOUT Event EMPTY.\n"))
2221 return;
2222 }
2223
2224 /*
2225 * Used to start non-preferred ports if the preferred one
2226 * does not come up.
2227 * This timeout needs only be set when starting the first
2228 * (preferred) port.
2229 */
2230 if (pAC->Rlmt.Port[Para.Para32[0]].LinkDown) {
2231 /* PORT_START failed. */
2232 for (i = 0; i < pAC->Rlmt.Port[Para.Para32[0]].Net->NumPorts; i++) {
2233 if (!pAC->Rlmt.Port[Para.Para32[0]].Net->Port[i]->PortStarted) {
2234 SkRlmtPortStart(pAC, IoC,
2235 pAC->Rlmt.Port[Para.Para32[0]].Net->Port[i]->PortNumber);
2236 }
2237 }
2238 }
2239
2240 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2241 ("SK_RLMT_PORTSTART_TIMEOUT Event END.\n"))
2242} /* SkRlmtEvtPortStartTim */
2243
2244
2245/******************************************************************************
2246 *
2247 * SkRlmtEvtLinkUp - LINK_UP
2248 *
2249 * Description:
2250 * This routine handles LLINK_UP events.
2251 *
2252 * Context:
2253 * runtime, pageable?
2254 * may be called after SK_INIT_IO
2255 *
2256 * Returns:
2257 * Nothing
2258 */
2259RLMT_STATIC void SkRlmtEvtLinkUp(
2260SK_AC *pAC, /* Adapter Context */
2261SK_IOC IoC, /* I/O Context */
2262SK_EVPARA Para) /* SK_U32 PortNumber; SK_U32 Undefined */
2263{
2264 SK_U32 i;
2265 SK_RLMT_PORT *pRPort;
2266 SK_EVPARA Para2;
2267
2268 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2269 ("SK_RLMT_LINK_UP Port %d Event BEGIN.\n", Para.Para32[0]))
2270
2271 pRPort = &pAC->Rlmt.Port[Para.Para32[0]];
2272 if (!pRPort->PortStarted) {
2273 SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_RLMT_E008, SKERR_RLMT_E008_MSG);
2274
2275 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2276 ("SK_RLMT_LINK_UP Event EMPTY.\n"))
2277 return;
2278 }
2279
2280 if (!pRPort->LinkDown) {
2281 /* RA;:;: Any better solution? */
2282 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2283 ("SK_RLMT_LINK_UP Event EMPTY.\n"))
2284 return;
2285 }
2286
2287 SkTimerStop(pAC, IoC, &pRPort->UpTimer);
2288 SkTimerStop(pAC, IoC, &pRPort->DownRxTimer);
2289 SkTimerStop(pAC, IoC, &pRPort->DownTxTimer);
2290
2291 /* Do something if timer already fired? */
2292
2293 pRPort->LinkDown = SK_FALSE;
2294 pRPort->PortState = SK_RLMT_PS_GOING_UP;
2295 pRPort->GuTimeStamp = SkOsGetTime(pAC);
2296 pRPort->BcTimeStamp = 0;
2297 pRPort->Net->LinksUp++;
2298 if (pRPort->Net->LinksUp == 1) {
2299 SK_HWAC_LINK_LED(pAC, IoC, Para.Para32[0], SK_LED_ACTIVE);
2300 }
2301 else {
2302 SK_HWAC_LINK_LED(pAC, IoC, Para.Para32[0], SK_LED_STANDBY);
2303 }
2304
2305 for (i = 0; i < pRPort->Net->NumPorts; i++) {
2306 if (!pRPort->Net->Port[i]->PortStarted) {
2307 SkRlmtPortStart(pAC, IoC, pRPort->Net->Port[i]->PortNumber);
2308 }
2309 }
2310
2311 SkRlmtCheckSwitch(pAC, IoC, pRPort->Net->NetNumber);
2312
2313 if (pRPort->Net->LinksUp >= 2) {
2314 if (pRPort->Net->RlmtMode & SK_RLMT_CHECK_LOC_LINK) {
2315 /* Build the check chain. */
2316 SkRlmtBuildCheckChain(pAC, pRPort->Net->NetNumber);
2317 }
2318 }
2319
2320 /* If the first link comes up, start the periodical RLMT timeout. */
2321 if (pRPort->Net->NumPorts > 1 && pRPort->Net->LinksUp == 1 &&
2322 (pRPort->Net->RlmtMode & SK_RLMT_CHECK_OTHERS) != 0) {
2323 Para2.Para32[0] = pRPort->Net->NetNumber;
2324 Para2.Para32[1] = (SK_U32)-1;
2325 SkTimerStart(pAC, IoC, &pRPort->Net->LocTimer,
2326 pRPort->Net->TimeoutValue, SKGE_RLMT, SK_RLMT_TIM, Para2);
2327 }
2328
2329 Para2 = Para;
2330 Para2.Para32[1] = (SK_U32)-1;
2331 SkTimerStart(pAC, IoC, &pRPort->UpTimer, SK_RLMT_PORTUP_TIM_VAL,
2332 SKGE_RLMT, SK_RLMT_PORTUP_TIM, Para2);
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2333
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2334 /* Later: if (pAC->Rlmt.RlmtMode & SK_RLMT_CHECK_LOC_LINK) && */
2335 if ((pRPort->Net->RlmtMode & SK_RLMT_TRANSPARENT) == 0 &&
2336 (pRPort->Net->RlmtMode & SK_RLMT_CHECK_LINK) != 0 &&
2337 (Para2.pParaPtr =
2338 SkRlmtBuildPacket(pAC, IoC, Para.Para32[0], SK_PACKET_ANNOUNCE,
2339 &pAC->Addr.Port[Para.Para32[0]].CurrentMacAddress, &SkRlmtMcAddr)
2340 ) != NULL) {
2341 /* Send "new" packet to RLMT multicast address. */
2342 SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para2);
2343 }
2344
2345 if (pRPort->Net->RlmtMode & SK_RLMT_CHECK_SEG) {
2346 if ((Para2.pParaPtr =
2347 SkRlmtBuildSpanningTreePacket(pAC, IoC, Para.Para32[0])) != NULL) {
2348 pAC->Rlmt.Port[Para.Para32[0]].RootIdSet = SK_FALSE;
2349 pRPort->Net->CheckingState |=
2350 SK_RLMT_RCS_SEG | SK_RLMT_RCS_REPORT_SEG;
2351
2352 SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para2);
2353
2354 Para.Para32[1] = (SK_U32)-1;
2355 SkTimerStart(pAC, IoC, &pRPort->Net->SegTimer,
2356 SK_RLMT_SEG_TO_VAL, SKGE_RLMT, SK_RLMT_SEG_TIM, Para);
2357 }
2358 }
2359
2360 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2361 ("SK_RLMT_LINK_UP Event END.\n"))
2362} /* SkRlmtEvtLinkUp */
2363
2364
2365/******************************************************************************
2366 *
2367 * SkRlmtEvtPortUpTim - PORT_UP_TIM
2368 *
2369 * Description:
2370 * This routine handles PORT_UP_TIM events.
2371 *
2372 * Context:
2373 * runtime, pageable?
2374 * may be called after SK_INIT_IO
2375 *
2376 * Returns:
2377 * Nothing
2378 */
2379RLMT_STATIC void SkRlmtEvtPortUpTim(
2380SK_AC *pAC, /* Adapter Context */
2381SK_IOC IoC, /* I/O Context */
2382SK_EVPARA Para) /* SK_U32 PortNumber; SK_U32 -1 */
2383{
2384 SK_RLMT_PORT *pRPort;
2385
2386 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2387 ("SK_RLMT_PORTUP_TIM Port %d Event BEGIN.\n", Para.Para32[0]))
2388
2389 if (Para.Para32[1] != (SK_U32)-1) {
2390 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2391 ("Bad Parameter.\n"))
2392 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2393 ("SK_RLMT_PORTUP_TIM Event EMPTY.\n"))
2394 return;
2395 }
2396
2397 pRPort = &pAC->Rlmt.Port[Para.Para32[0]];
2398 if (pRPort->LinkDown || (pRPort->PortState == SK_RLMT_PS_UP)) {
2399 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2400 ("SK_RLMT_PORTUP_TIM Port %d Event EMPTY.\n", Para.Para32[0]))
2401 return;
2402 }
2403
2404 pRPort->PortDown = SK_FALSE;
2405 pRPort->PortState = SK_RLMT_PS_UP;
2406 pRPort->Net->PortsUp++;
2407 if (pRPort->Net->RlmtState != SK_RLMT_RS_INIT) {
2408 if (pAC->Rlmt.NumNets <= 1) {
2409 SkRlmtCheckSwitch(pAC, IoC, pRPort->Net->NetNumber);
2410 }
2411 SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_PORT_UP, Para);
2412 }
2413
2414 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2415 ("SK_RLMT_PORTUP_TIM Event END.\n"))
2416} /* SkRlmtEvtPortUpTim */
2417
2418
2419/******************************************************************************
2420 *
2421 * SkRlmtEvtPortDownTim - PORT_DOWN_*
2422 *
2423 * Description:
2424 * This routine handles PORT_DOWN_* events.
2425 *
2426 * Context:
2427 * runtime, pageable?
2428 * may be called after SK_INIT_IO
2429 *
2430 * Returns:
2431 * Nothing
2432 */
2433RLMT_STATIC void SkRlmtEvtPortDownX(
2434SK_AC *pAC, /* Adapter Context */
2435SK_IOC IoC, /* I/O Context */
2436SK_U32 Event, /* Event code */
2437SK_EVPARA Para) /* SK_U32 PortNumber; SK_U32 -1 */
2438{
2439 SK_RLMT_PORT *pRPort;
2440
2441 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2442 ("SK_RLMT_PORTDOWN* Port %d Event (%d) BEGIN.\n",
2443 Para.Para32[0], Event))
2444
2445 if (Para.Para32[1] != (SK_U32)-1) {
2446 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2447 ("Bad Parameter.\n"))
2448 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2449 ("SK_RLMT_PORTDOWN* Event EMPTY.\n"))
2450 return;
2451 }
2452
2453 pRPort = &pAC->Rlmt.Port[Para.Para32[0]];
2454 if (!pRPort->PortStarted || (Event == SK_RLMT_PORTDOWN_TX_TIM &&
2455 !(pRPort->CheckingState & SK_RLMT_PCS_TX))) {
2456 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2457 ("SK_RLMT_PORTDOWN* Event (%d) EMPTY.\n", Event))
2458 return;
2459 }
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2460
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2461 /* Stop port's timers. */
2462 SkTimerStop(pAC, IoC, &pRPort->UpTimer);
2463 SkTimerStop(pAC, IoC, &pRPort->DownRxTimer);
2464 SkTimerStop(pAC, IoC, &pRPort->DownTxTimer);
2465
2466 if (pRPort->PortState != SK_RLMT_PS_LINK_DOWN) {
2467 pRPort->PortState = SK_RLMT_PS_DOWN;
2468 }
2469
2470 if (!pRPort->PortDown) {
2471 pRPort->Net->PortsUp--;
2472 pRPort->PortDown = SK_TRUE;
2473 SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_PORT_DOWN, Para);
2474 }
2475
2476 pRPort->PacketsPerTimeSlot = 0;
2477 /* pRPort->DataPacketsPerTimeSlot = 0; */
2478 pRPort->BpduPacketsPerTimeSlot = 0;
2479 pRPort->BcTimeStamp = 0;
2480
2481 /*
2482 * RA;:;: To be checked:
2483 * - actions at RLMT_STOP: We should not switch anymore.
2484 */
2485 if (pRPort->Net->RlmtState != SK_RLMT_RS_INIT) {
2486 if (Para.Para32[0] ==
2487 pRPort->Net->Port[pRPort->Net->ActivePort]->PortNumber) {
2488 /* Active Port went down. */
2489 SkRlmtCheckSwitch(pAC, IoC, pRPort->Net->NetNumber);
2490 }
2491 }
2492
2493 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2494 ("SK_RLMT_PORTDOWN* Event (%d) END.\n", Event))
2495} /* SkRlmtEvtPortDownX */
2496
2497
2498/******************************************************************************
2499 *
2500 * SkRlmtEvtLinkDown - LINK_DOWN
2501 *
2502 * Description:
2503 * This routine handles LINK_DOWN events.
2504 *
2505 * Context:
2506 * runtime, pageable?
2507 * may be called after SK_INIT_IO
2508 *
2509 * Returns:
2510 * Nothing
2511 */
2512RLMT_STATIC void SkRlmtEvtLinkDown(
2513SK_AC *pAC, /* Adapter Context */
2514SK_IOC IoC, /* I/O Context */
2515SK_EVPARA Para) /* SK_U32 PortNumber; SK_U32 Undefined */
2516{
2517 SK_RLMT_PORT *pRPort;
2518
2519 pRPort = &pAC->Rlmt.Port[Para.Para32[0]];
2520 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2521 ("SK_RLMT_LINK_DOWN Port %d Event BEGIN.\n", Para.Para32[0]))
2522
2523 if (!pAC->Rlmt.Port[Para.Para32[0]].LinkDown) {
2524 pRPort->Net->LinksUp--;
2525 pRPort->LinkDown = SK_TRUE;
2526 pRPort->PortState = SK_RLMT_PS_LINK_DOWN;
2527 SK_HWAC_LINK_LED(pAC, IoC, Para.Para32[0], SK_LED_OFF);
2528
2529 if ((pRPort->Net->RlmtMode & SK_RLMT_CHECK_LOC_LINK) != 0) {
2530 /* Build the check chain. */
2531 SkRlmtBuildCheckChain(pAC, pRPort->Net->NetNumber);
2532 }
2533
2534 /* Ensure that port is marked down. */
2535 Para.Para32[1] = -1;
2536 (void)SkRlmtEvent(pAC, IoC, SK_RLMT_PORTDOWN, Para);
2537 }
2538
2539 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2540 ("SK_RLMT_LINK_DOWN Event END.\n"))
2541} /* SkRlmtEvtLinkDown */
2542
2543
2544/******************************************************************************
2545 *
2546 * SkRlmtEvtPortAddr - PORT_ADDR
2547 *
2548 * Description:
2549 * This routine handles PORT_ADDR events.
2550 *
2551 * Context:
2552 * runtime, pageable?
2553 * may be called after SK_INIT_IO
2554 *
2555 * Returns:
2556 * Nothing
2557 */
2558RLMT_STATIC void SkRlmtEvtPortAddr(
2559SK_AC *pAC, /* Adapter Context */
2560SK_IOC IoC, /* I/O Context */
2561SK_EVPARA Para) /* SK_U32 PortNumber; SK_U32 -1 */
2562{
2563 SK_U32 i, j;
2564 SK_RLMT_PORT *pRPort;
2565 SK_MAC_ADDR *pOldMacAddr;
2566 SK_MAC_ADDR *pNewMacAddr;
2567
2568 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2569 ("SK_RLMT_PORT_ADDR Port %d Event BEGIN.\n", Para.Para32[0]))
2570
2571 if (Para.Para32[1] != (SK_U32)-1) {
2572 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2573 ("Bad Parameter.\n"))
2574 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2575 ("SK_RLMT_PORT_ADDR Event EMPTY.\n"))
2576 return;
2577 }
2578
2579 /* Port's physical MAC address changed. */
2580 pOldMacAddr = &pAC->Addr.Port[Para.Para32[0]].PreviousMacAddress;
2581 pNewMacAddr = &pAC->Addr.Port[Para.Para32[0]].CurrentMacAddress;
2582
2583 /*
2584 * NOTE: This is not scalable for solutions where ports are
2585 * checked remotely. There, we need to send an RLMT
2586 * address change packet - and how do we ensure delivery?
2587 */
2588 for (i = 0; i < (SK_U32)pAC->GIni.GIMacsFound; i++) {
2589 pRPort = &pAC->Rlmt.Port[i];
2590 for (j = 0; j < pRPort->PortsChecked; j++) {
2591 if (SK_ADDR_EQUAL(
2592 pRPort->PortCheck[j].CheckAddr.a, pOldMacAddr->a)) {
2593 pRPort->PortCheck[j].CheckAddr = *pNewMacAddr;
2594 }
2595 }
2596 }
2597
2598 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2599 ("SK_RLMT_PORT_ADDR Event END.\n"))
2600} /* SkRlmtEvtPortAddr */
2601
2602
2603/******************************************************************************
2604 *
2605 * SkRlmtEvtStart - START
2606 *
2607 * Description:
2608 * This routine handles START events.
2609 *
2610 * Context:
2611 * runtime, pageable?
2612 * may be called after SK_INIT_IO
2613 *
2614 * Returns:
2615 * Nothing
2616 */
2617RLMT_STATIC void SkRlmtEvtStart(
2618SK_AC *pAC, /* Adapter Context */
2619SK_IOC IoC, /* I/O Context */
2620SK_EVPARA Para) /* SK_U32 NetNumber; SK_U32 -1 */
2621{
2622 SK_EVPARA Para2;
2623 SK_U32 PortIdx;
2624 SK_U32 PortNumber;
2625
2626 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2627 ("SK_RLMT_START Net %d Event BEGIN.\n", Para.Para32[0]))
2628
2629 if (Para.Para32[1] != (SK_U32)-1) {
2630 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2631 ("Bad Parameter.\n"))
2632 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2633 ("SK_RLMT_START Event EMPTY.\n"))
2634 return;
2635 }
2636
2637 if (Para.Para32[0] >= pAC->Rlmt.NumNets) {
2638 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2639 ("Bad NetNumber %d.\n", Para.Para32[0]))
2640 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2641 ("SK_RLMT_START Event EMPTY.\n"))
2642 return;
2643 }
2644
2645 if (pAC->Rlmt.Net[Para.Para32[0]].RlmtState != SK_RLMT_RS_INIT) {
2646 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2647 ("SK_RLMT_START Event EMPTY.\n"))
2648 return;
2649 }
2650
2651 if (pAC->Rlmt.NetsStarted >= pAC->Rlmt.NumNets) {
2652 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2653 ("All nets should have been started.\n"))
2654 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2655 ("SK_RLMT_START Event EMPTY.\n"))
2656 return;
2657 }
2658
2659 if (pAC->Rlmt.Net[Para.Para32[0]].PrefPort >=
2660 pAC->Rlmt.Net[Para.Para32[0]].NumPorts) {
2661 SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_RLMT_E009, SKERR_RLMT_E009_MSG);
2662
2663 /* Change PrefPort to internal default. */
2664 Para2.Para32[0] = 0xFFFFFFFF;
2665 Para2.Para32[1] = Para.Para32[0];
2666 (void)SkRlmtEvent(pAC, IoC, SK_RLMT_PREFPORT_CHANGE, Para2);
2667 }
2668
2669 PortIdx = pAC->Rlmt.Net[Para.Para32[0]].PrefPort;
2670 PortNumber = pAC->Rlmt.Net[Para.Para32[0]].Port[PortIdx]->PortNumber;
2671
2672 pAC->Rlmt.Net[Para.Para32[0]].LinksUp = 0;
2673 pAC->Rlmt.Net[Para.Para32[0]].PortsUp = 0;
2674 pAC->Rlmt.Net[Para.Para32[0]].CheckingState = 0;
2675 pAC->Rlmt.Net[Para.Para32[0]].RlmtState = SK_RLMT_RS_NET_DOWN;
2676
2677 /* Start preferred port. */
2678 SkRlmtPortStart(pAC, IoC, PortNumber);
2679
2680 /* Start Timer (for first port only). */
2681 Para2.Para32[0] = PortNumber;
2682 Para2.Para32[1] = (SK_U32)-1;
2683 SkTimerStart(pAC, IoC, &pAC->Rlmt.Port[PortNumber].UpTimer,
2684 SK_RLMT_PORTSTART_TIM_VAL, SKGE_RLMT, SK_RLMT_PORTSTART_TIM, Para2);
2685
2686 pAC->Rlmt.NetsStarted++;
2687
2688 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2689 ("SK_RLMT_START Event END.\n"))
2690} /* SkRlmtEvtStart */
2691
2692
2693/******************************************************************************
2694 *
2695 * SkRlmtEvtStop - STOP
2696 *
2697 * Description:
2698 * This routine handles STOP events.
2699 *
2700 * Context:
2701 * runtime, pageable?
2702 * may be called after SK_INIT_IO
2703 *
2704 * Returns:
2705 * Nothing
2706 */
2707RLMT_STATIC void SkRlmtEvtStop(
2708SK_AC *pAC, /* Adapter Context */
2709SK_IOC IoC, /* I/O Context */
2710SK_EVPARA Para) /* SK_U32 NetNumber; SK_U32 -1 */
2711{
2712 SK_EVPARA Para2;
2713 SK_U32 PortNumber;
2714 SK_U32 i;
2715
2716 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2717 ("SK_RLMT_STOP Net %d Event BEGIN.\n", Para.Para32[0]))
2718
2719 if (Para.Para32[1] != (SK_U32)-1) {
2720 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2721 ("Bad Parameter.\n"))
2722 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2723 ("SK_RLMT_STOP Event EMPTY.\n"))
2724 return;
2725 }
2726
2727 if (Para.Para32[0] >= pAC->Rlmt.NumNets) {
2728 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2729 ("Bad NetNumber %d.\n", Para.Para32[0]))
2730 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2731 ("SK_RLMT_STOP Event EMPTY.\n"))
2732 return;
2733 }
2734
2735 if (pAC->Rlmt.Net[Para.Para32[0]].RlmtState == SK_RLMT_RS_INIT) {
2736 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2737 ("SK_RLMT_STOP Event EMPTY.\n"))
2738 return;
2739 }
2740
2741 if (pAC->Rlmt.NetsStarted == 0) {
2742 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2743 ("All nets are stopped.\n"))
2744 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2745 ("SK_RLMT_STOP Event EMPTY.\n"))
2746 return;
2747 }
2748
2749 /* Stop RLMT timers. */
2750 SkTimerStop(pAC, IoC, &pAC->Rlmt.Net[Para.Para32[0]].LocTimer);
2751 SkTimerStop(pAC, IoC, &pAC->Rlmt.Net[Para.Para32[0]].SegTimer);
2752
2753 /* Stop net. */
2754 pAC->Rlmt.Net[Para.Para32[0]].RlmtState = SK_RLMT_RS_INIT;
2755 pAC->Rlmt.Net[Para.Para32[0]].RootIdSet = SK_FALSE;
2756 Para2.Para32[0] = SK_RLMT_NET_DOWN_FINAL;
2757 Para2.Para32[1] = Para.Para32[0]; /* Net# */
2758 SkEventQueue(pAC, SKGE_DRV, SK_DRV_NET_DOWN, Para2);
2759
2760 /* Stop ports. */
2761 for (i = 0; i < pAC->Rlmt.Net[Para.Para32[0]].NumPorts; i++) {
2762 PortNumber = pAC->Rlmt.Net[Para.Para32[0]].Port[i]->PortNumber;
2763 if (pAC->Rlmt.Port[PortNumber].PortState != SK_RLMT_PS_INIT) {
2764 SkTimerStop(pAC, IoC, &pAC->Rlmt.Port[PortNumber].UpTimer);
2765 SkTimerStop(pAC, IoC, &pAC->Rlmt.Port[PortNumber].DownRxTimer);
2766 SkTimerStop(pAC, IoC, &pAC->Rlmt.Port[PortNumber].DownTxTimer);
2767
2768 pAC->Rlmt.Port[PortNumber].PortState = SK_RLMT_PS_INIT;
2769 pAC->Rlmt.Port[PortNumber].RootIdSet = SK_FALSE;
2770 pAC->Rlmt.Port[PortNumber].PortStarted = SK_FALSE;
2771 Para2.Para32[0] = PortNumber;
2772 Para2.Para32[1] = (SK_U32)-1;
2773 SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_STOP, Para2);
2774 }
2775 }
2776
2777 pAC->Rlmt.NetsStarted--;
2778
2779 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2780 ("SK_RLMT_STOP Event END.\n"))
2781} /* SkRlmtEvtStop */
2782
2783
2784/******************************************************************************
2785 *
2786 * SkRlmtEvtTim - TIM
2787 *
2788 * Description:
2789 * This routine handles TIM events.
2790 *
2791 * Context:
2792 * runtime, pageable?
2793 * may be called after SK_INIT_IO
2794 *
2795 * Returns:
2796 * Nothing
2797 */
2798RLMT_STATIC void SkRlmtEvtTim(
2799SK_AC *pAC, /* Adapter Context */
2800SK_IOC IoC, /* I/O Context */
2801SK_EVPARA Para) /* SK_U32 NetNumber; SK_U32 -1 */
2802{
2803 SK_RLMT_PORT *pRPort;
2804 SK_U32 Timeout;
2805 SK_U32 NewTimeout;
2806 SK_U32 PortNumber;
2807 SK_U32 i;
2808
2809 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2810 ("SK_RLMT_TIM Event BEGIN.\n"))
2811
2812 if (Para.Para32[1] != (SK_U32)-1) {
2813 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2814 ("Bad Parameter.\n"))
2815 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2816 ("SK_RLMT_TIM Event EMPTY.\n"))
2817 return;
2818 }
2819
2820 if ((pAC->Rlmt.Net[Para.Para32[0]].RlmtMode & SK_RLMT_CHECK_OTHERS) == 0 ||
2821 pAC->Rlmt.Net[Para.Para32[0]].LinksUp == 0) {
2822 /* Mode changed or all links down: No more link checking. */
2823 return;
2824 }
2825
2826#if 0
2827 pAC->Rlmt.SwitchCheckCounter--;
2828 if (pAC->Rlmt.SwitchCheckCounter == 0) {
2829 pAC->Rlmt.SwitchCheckCounter;
2830 }
2831#endif /* 0 */
2832
2833 NewTimeout = SK_RLMT_DEF_TO_VAL;
2834 for (i = 0; i < pAC->Rlmt.Net[Para.Para32[0]].NumPorts; i++) {
2835 PortNumber = pAC->Rlmt.Net[Para.Para32[0]].Port[i]->PortNumber;
2836 pRPort = &pAC->Rlmt.Port[PortNumber];
2837 if (!pRPort->LinkDown) {
2838 Timeout = SkRlmtCheckPort(pAC, IoC, PortNumber);
2839 if (Timeout < NewTimeout) {
2840 NewTimeout = Timeout;
2841 }
2842
2843 /*
2844 * These counters should be set to 0 for all ports before the
2845 * first frame is sent in the next loop.
2846 */
2847 pRPort->PacketsPerTimeSlot = 0;
2848 /* pRPort->DataPacketsPerTimeSlot = 0; */
2849 pRPort->BpduPacketsPerTimeSlot = 0;
2850 }
2851 }
2852 pAC->Rlmt.Net[Para.Para32[0]].TimeoutValue = NewTimeout;
2853
2854 if (pAC->Rlmt.Net[Para.Para32[0]].LinksUp > 1) {
2855 /*
2856 * If checking remote ports, also send packets if
2857 * (LinksUp == 1) &&
2858 * this port checks at least one (remote) port.
2859 */
2860
2861 /*
2862 * Must be new loop, as SkRlmtCheckPort can request to
2863 * check segmentation when e.g. checking the last port.
2864 */
2865 for (i = 0; i < pAC->Rlmt.Net[Para.Para32[0]].NumPorts; i++) {
2866 if (!pAC->Rlmt.Net[Para.Para32[0]].Port[i]->LinkDown) {
2867 SkRlmtSend(pAC, IoC,
2868 pAC->Rlmt.Net[Para.Para32[0]].Port[i]->PortNumber);
2869 }
2870 }
2871 }
2872
2873 SkTimerStart(pAC, IoC, &pAC->Rlmt.Net[Para.Para32[0]].LocTimer,
2874 pAC->Rlmt.Net[Para.Para32[0]].TimeoutValue, SKGE_RLMT, SK_RLMT_TIM,
2875 Para);
2876
2877 if (pAC->Rlmt.Net[Para.Para32[0]].LinksUp > 1 &&
2878 (pAC->Rlmt.Net[Para.Para32[0]].RlmtMode & SK_RLMT_CHECK_SEG) &&
2879 (pAC->Rlmt.Net[Para.Para32[0]].CheckingState & SK_RLMT_RCS_START_SEG)) {
2880 SkTimerStart(pAC, IoC, &pAC->Rlmt.Net[Para.Para32[0]].SegTimer,
2881 SK_RLMT_SEG_TO_VAL, SKGE_RLMT, SK_RLMT_SEG_TIM, Para);
2882 pAC->Rlmt.Net[Para.Para32[0]].CheckingState &= ~SK_RLMT_RCS_START_SEG;
2883 pAC->Rlmt.Net[Para.Para32[0]].CheckingState |=
2884 SK_RLMT_RCS_SEG | SK_RLMT_RCS_REPORT_SEG;
2885 }
2886
2887 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2888 ("SK_RLMT_TIM Event END.\n"))
2889} /* SkRlmtEvtTim */
2890
2891
2892/******************************************************************************
2893 *
2894 * SkRlmtEvtSegTim - SEG_TIM
2895 *
2896 * Description:
2897 * This routine handles SEG_TIM events.
2898 *
2899 * Context:
2900 * runtime, pageable?
2901 * may be called after SK_INIT_IO
2902 *
2903 * Returns:
2904 * Nothing
2905 */
2906RLMT_STATIC void SkRlmtEvtSegTim(
2907SK_AC *pAC, /* Adapter Context */
2908SK_IOC IoC, /* I/O Context */
2909SK_EVPARA Para) /* SK_U32 NetNumber; SK_U32 -1 */
2910{
2911#ifdef xDEBUG
2912 int j;
2913#endif /* DEBUG */
2914
2915 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2916 ("SK_RLMT_SEG_TIM Event BEGIN.\n"))
2917
2918 if (Para.Para32[1] != (SK_U32)-1) {
2919 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2920 ("Bad Parameter.\n"))
2921 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2922 ("SK_RLMT_SEG_TIM Event EMPTY.\n"))
2923 return;
2924 }
2925
2926#ifdef xDEBUG
2927 for (j = 0; j < pAC->Rlmt.Net[Para.Para32[0]].NumPorts; j++) {
2928 SK_ADDR_PORT *pAPort;
2929 SK_U32 k;
2930 SK_U16 *InAddr;
2931 SK_U8 InAddr8[6];
2932
2933 InAddr = (SK_U16 *)&InAddr8[0];
2934 pAPort = pAC->Rlmt.Net[Para.Para32[0]].Port[j]->AddrPort;
2935 for (k = 0; k < pAPort->NextExactMatchRlmt; k++) {
2936 /* Get exact match address k from port j. */
2937 XM_INADDR(IoC, pAC->Rlmt.Net[Para.Para32[0]].Port[j]->PortNumber,
2938 XM_EXM(k), InAddr);
2939 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2940 ("MC address %d on Port %u: %02x %02x %02x %02x %02x %02x -- %02x %02x %02x %02x %02x %02x.\n",
2941 k, pAC->Rlmt.Net[Para.Para32[0]].Port[j]->PortNumber,
2942 InAddr8[0], InAddr8[1], InAddr8[2],
2943 InAddr8[3], InAddr8[4], InAddr8[5],
2944 pAPort->Exact[k].a[0], pAPort->Exact[k].a[1],
2945 pAPort->Exact[k].a[2], pAPort->Exact[k].a[3],
2946 pAPort->Exact[k].a[4], pAPort->Exact[k].a[5]))
2947 }
2948 }
2949#endif /* xDEBUG */
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2950
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2951 SkRlmtCheckSeg(pAC, IoC, Para.Para32[0]);
2952
2953 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2954 ("SK_RLMT_SEG_TIM Event END.\n"))
2955} /* SkRlmtEvtSegTim */
2956
2957
2958/******************************************************************************
2959 *
2960 * SkRlmtEvtPacketRx - PACKET_RECEIVED
2961 *
2962 * Description:
2963 * This routine handles PACKET_RECEIVED events.
2964 *
2965 * Context:
2966 * runtime, pageable?
2967 * may be called after SK_INIT_IO
2968 *
2969 * Returns:
2970 * Nothing
2971 */
2972RLMT_STATIC void SkRlmtEvtPacketRx(
2973SK_AC *pAC, /* Adapter Context */
2974SK_IOC IoC, /* I/O Context */
2975SK_EVPARA Para) /* SK_MBUF *pMb */
2976{
2977 SK_MBUF *pMb;
2978 SK_MBUF *pNextMb;
2979 SK_U32 NetNumber;
2980
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]2981
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]2982 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2983 ("SK_RLMT_PACKET_RECEIVED Event BEGIN.\n"))
2984
2985 /* Should we ignore frames during port switching? */
2986
2987#ifdef DEBUG
2988 pMb = Para.pParaPtr;
2989 if (pMb == NULL) {
2990 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL, ("No mbuf.\n"))
2991 }
2992 else if (pMb->pNext != NULL) {
2993 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
2994 ("More than one mbuf or pMb->pNext not set.\n"))
2995 }
2996#endif /* DEBUG */
2997
2998 for (pMb = Para.pParaPtr; pMb != NULL; pMb = pNextMb) {
2999 pNextMb = pMb->pNext;
3000 pMb->pNext = NULL;
3001
3002 NetNumber = pAC->Rlmt.Port[pMb->PortIdx].Net->NetNumber;
3003 if (pAC->Rlmt.Net[NetNumber].RlmtState == SK_RLMT_RS_INIT) {
3004 SkDrvFreeRlmtMbuf(pAC, IoC, pMb);
3005 }
3006 else {
3007 SkRlmtPacketReceive(pAC, IoC, pMb);
3008 }
3009 }
3010
3011 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3012 ("SK_RLMT_PACKET_RECEIVED Event END.\n"))
3013} /* SkRlmtEvtPacketRx */
3014
3015
3016/******************************************************************************
3017 *
3018 * SkRlmtEvtStatsClear - STATS_CLEAR
3019 *
3020 * Description:
3021 * This routine handles STATS_CLEAR events.
3022 *
3023 * Context:
3024 * runtime, pageable?
3025 * may be called after SK_INIT_IO
3026 *
3027 * Returns:
3028 * Nothing
3029 */
3030RLMT_STATIC void SkRlmtEvtStatsClear(
3031SK_AC *pAC, /* Adapter Context */
3032SK_IOC IoC, /* I/O Context */
3033SK_EVPARA Para) /* SK_U32 NetNumber; SK_U32 -1 */
3034{
3035 SK_U32 i;
3036 SK_RLMT_PORT *pRPort;
3037
3038 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3039 ("SK_RLMT_STATS_CLEAR Event BEGIN.\n"))
3040
3041 if (Para.Para32[1] != (SK_U32)-1) {
3042 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3043 ("Bad Parameter.\n"))
3044 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3045 ("SK_RLMT_STATS_CLEAR Event EMPTY.\n"))
3046 return;
3047 }
3048
3049 if (Para.Para32[0] >= pAC->Rlmt.NumNets) {
3050 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3051 ("Bad NetNumber %d.\n", Para.Para32[0]))
3052 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3053 ("SK_RLMT_STATS_CLEAR Event EMPTY.\n"))
3054 return;
3055 }
3056
3057 /* Clear statistics for logical and physical ports. */
3058 for (i = 0; i < pAC->Rlmt.Net[Para.Para32[0]].NumPorts; i++) {
3059 pRPort =
3060 &pAC->Rlmt.Port[pAC->Rlmt.Net[Para.Para32[0]].Port[i]->PortNumber];
3061 pRPort->TxHelloCts = 0;
3062 pRPort->RxHelloCts = 0;
3063 pRPort->TxSpHelloReqCts = 0;
3064 pRPort->RxSpHelloCts = 0;
3065 }
3066
3067 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3068 ("SK_RLMT_STATS_CLEAR Event END.\n"))
3069} /* SkRlmtEvtStatsClear */
3070
3071
3072/******************************************************************************
3073 *
3074 * SkRlmtEvtStatsUpdate - STATS_UPDATE
3075 *
3076 * Description:
3077 * This routine handles STATS_UPDATE events.
3078 *
3079 * Context:
3080 * runtime, pageable?
3081 * may be called after SK_INIT_IO
3082 *
3083 * Returns:
3084 * Nothing
3085 */
3086RLMT_STATIC void SkRlmtEvtStatsUpdate(
3087SK_AC *pAC, /* Adapter Context */
3088SK_IOC IoC, /* I/O Context */
3089SK_EVPARA Para) /* SK_U32 NetNumber; SK_U32 -1 */
3090{
3091 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3092 ("SK_RLMT_STATS_UPDATE Event BEGIN.\n"))
3093
3094 if (Para.Para32[1] != (SK_U32)-1) {
3095 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3096 ("Bad Parameter.\n"))
3097 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3098 ("SK_RLMT_STATS_UPDATE Event EMPTY.\n"))
3099 return;
3100 }
3101
3102 if (Para.Para32[0] >= pAC->Rlmt.NumNets) {
3103 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3104 ("Bad NetNumber %d.\n", Para.Para32[0]))
3105 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3106 ("SK_RLMT_STATS_UPDATE Event EMPTY.\n"))
3107 return;
3108 }
3109
3110 /* Update statistics - currently always up-to-date. */
3111
3112 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3113 ("SK_RLMT_STATS_UPDATE Event END.\n"))
3114} /* SkRlmtEvtStatsUpdate */
3115
3116
3117/******************************************************************************
3118 *
3119 * SkRlmtEvtPrefportChange - PREFPORT_CHANGE
3120 *
3121 * Description:
3122 * This routine handles PREFPORT_CHANGE events.
3123 *
3124 * Context:
3125 * runtime, pageable?
3126 * may be called after SK_INIT_IO
3127 *
3128 * Returns:
3129 * Nothing
3130 */
3131RLMT_STATIC void SkRlmtEvtPrefportChange(
3132SK_AC *pAC, /* Adapter Context */
3133SK_IOC IoC, /* I/O Context */
3134SK_EVPARA Para) /* SK_U32 PortIndex; SK_U32 NetNumber */
3135{
3136 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3137 ("SK_RLMT_PREFPORT_CHANGE to Port %d Event BEGIN.\n", Para.Para32[0]))
3138
3139 if (Para.Para32[1] >= pAC->Rlmt.NumNets) {
3140 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3141 ("Bad NetNumber %d.\n", Para.Para32[1]))
3142 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3143 ("SK_RLMT_PREFPORT_CHANGE Event EMPTY.\n"))
3144 return;
3145 }
3146
3147 /* 0xFFFFFFFF == auto-mode. */
3148 if (Para.Para32[0] == 0xFFFFFFFF) {
3149 pAC->Rlmt.Net[Para.Para32[1]].PrefPort = SK_RLMT_DEF_PREF_PORT;
3150 }
3151 else {
3152 if (Para.Para32[0] >= pAC->Rlmt.Net[Para.Para32[1]].NumPorts) {
3153 SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_RLMT_E010, SKERR_RLMT_E010_MSG);
3154
3155 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3156 ("SK_RLMT_PREFPORT_CHANGE Event EMPTY.\n"))
3157 return;
3158 }
3159
3160 pAC->Rlmt.Net[Para.Para32[1]].PrefPort = Para.Para32[0];
3161 }
3162
3163 pAC->Rlmt.Net[Para.Para32[1]].Preference = Para.Para32[0];
3164
3165 if (pAC->Rlmt.Net[Para.Para32[1]].RlmtState != SK_RLMT_RS_INIT) {
3166 SkRlmtCheckSwitch(pAC, IoC, Para.Para32[1]);
3167 }
3168
3169 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3170 ("SK_RLMT_PREFPORT_CHANGE Event END.\n"))
3171} /* SkRlmtEvtPrefportChange */
3172
3173
3174/******************************************************************************
3175 *
3176 * SkRlmtEvtSetNets - SET_NETS
3177 *
3178 * Description:
3179 * This routine handles SET_NETS events.
3180 *
3181 * Context:
3182 * runtime, pageable?
3183 * may be called after SK_INIT_IO
3184 *
3185 * Returns:
3186 * Nothing
3187 */
3188RLMT_STATIC void SkRlmtEvtSetNets(
3189SK_AC *pAC, /* Adapter Context */
3190SK_IOC IoC, /* I/O Context */
3191SK_EVPARA Para) /* SK_U32 NumNets; SK_U32 -1 */
3192{
3193 int i;
3194
3195 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3196 ("SK_RLMT_SET_NETS Event BEGIN.\n"))
3197
3198 if (Para.Para32[1] != (SK_U32)-1) {
3199 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3200 ("Bad Parameter.\n"))
3201 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3202 ("SK_RLMT_SET_NETS Event EMPTY.\n"))
3203 return;
3204 }
3205
3206 if (Para.Para32[0] == 0 || Para.Para32[0] > SK_MAX_NETS ||
3207 Para.Para32[0] > (SK_U32)pAC->GIni.GIMacsFound) {
3208 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3209 ("Bad number of nets: %d.\n", Para.Para32[0]))
3210 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3211 ("SK_RLMT_SET_NETS Event EMPTY.\n"))
3212 return;
3213 }
3214
3215 if (Para.Para32[0] == pAC->Rlmt.NumNets) { /* No change. */
3216 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3217 ("SK_RLMT_SET_NETS Event EMPTY.\n"))
3218 return;
3219 }
3220
3221 /* Entering and leaving dual mode only allowed while nets are stopped. */
3222 if (pAC->Rlmt.NetsStarted > 0) {
3223 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3224 ("Changing dual mode only allowed while all nets are stopped.\n"))
3225 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3226 ("SK_RLMT_SET_NETS Event EMPTY.\n"))
3227 return;
3228 }
3229
3230 if (Para.Para32[0] == 1) {
3231 if (pAC->Rlmt.NumNets > 1) {
3232 /* Clear logical MAC addr from second net's active port. */
3233 (void)SkAddrOverride(pAC, IoC, pAC->Rlmt.Net[1].Port[pAC->Addr.
3234 Net[1].ActivePort]->PortNumber, NULL, SK_ADDR_CLEAR_LOGICAL);
3235 pAC->Rlmt.Net[1].NumPorts = 0;
3236 }
3237
3238 pAC->Rlmt.NumNets = Para.Para32[0];
3239 for (i = 0; (SK_U32)i < pAC->Rlmt.NumNets; i++) {
3240 pAC->Rlmt.Net[i].RlmtState = SK_RLMT_RS_INIT;
3241 pAC->Rlmt.Net[i].RootIdSet = SK_FALSE;
3242 pAC->Rlmt.Net[i].Preference = 0xFFFFFFFF; /* "Automatic" */
3243 pAC->Rlmt.Net[i].PrefPort = SK_RLMT_DEF_PREF_PORT;
3244 /* Just assuming. */
3245 pAC->Rlmt.Net[i].ActivePort = pAC->Rlmt.Net[i].PrefPort;
3246 pAC->Rlmt.Net[i].RlmtMode = SK_RLMT_DEF_MODE;
3247 pAC->Rlmt.Net[i].TimeoutValue = SK_RLMT_DEF_TO_VAL;
3248 pAC->Rlmt.Net[i].NetNumber = i;
3249 }
3250
3251 pAC->Rlmt.Port[1].Net= &pAC->Rlmt.Net[0];
3252 pAC->Rlmt.Net[0].NumPorts = pAC->GIni.GIMacsFound;
3253
3254 SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_SET_NETS, Para);
3255
3256 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3257 ("RLMT: Changed to one net with two ports.\n"))
3258 }
3259 else if (Para.Para32[0] == 2) {
3260 pAC->Rlmt.Port[1].Net= &pAC->Rlmt.Net[1];
3261 pAC->Rlmt.Net[1].NumPorts = pAC->GIni.GIMacsFound - 1;
3262 pAC->Rlmt.Net[0].NumPorts =
3263 pAC->GIni.GIMacsFound - pAC->Rlmt.Net[1].NumPorts;
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3264
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3265 pAC->Rlmt.NumNets = Para.Para32[0];
3266 for (i = 0; (SK_U32)i < pAC->Rlmt.NumNets; i++) {
3267 pAC->Rlmt.Net[i].RlmtState = SK_RLMT_RS_INIT;
3268 pAC->Rlmt.Net[i].RootIdSet = SK_FALSE;
3269 pAC->Rlmt.Net[i].Preference = 0xFFFFFFFF; /* "Automatic" */
3270 pAC->Rlmt.Net[i].PrefPort = SK_RLMT_DEF_PREF_PORT;
3271 /* Just assuming. */
3272 pAC->Rlmt.Net[i].ActivePort = pAC->Rlmt.Net[i].PrefPort;
3273 pAC->Rlmt.Net[i].RlmtMode = SK_RLMT_DEF_MODE;
3274 pAC->Rlmt.Net[i].TimeoutValue = SK_RLMT_DEF_TO_VAL;
3275
3276 pAC->Rlmt.Net[i].NetNumber = i;
3277 }
3278
3279 /* Set logical MAC addr on second net's active port. */
3280 (void)SkAddrOverride(pAC, IoC, pAC->Rlmt.Net[1].Port[pAC->Addr.
3281 Net[1].ActivePort]->PortNumber, NULL, SK_ADDR_SET_LOGICAL);
3282
3283 SkEventQueue(pAC, SKGE_PNMI, SK_PNMI_EVT_RLMT_SET_NETS, Para);
3284
3285 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3286 ("RLMT: Changed to two nets with one port each.\n"))
3287 }
3288 else {
3289 /* Not implemented for more than two nets. */
3290 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3291 ("SetNets not implemented for more than two nets.\n"))
3292 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3293 ("SK_RLMT_SET_NETS Event EMPTY.\n"))
3294 return;
3295 }
3296
3297 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3298 ("SK_RLMT_SET_NETS Event END.\n"))
3299} /* SkRlmtSetNets */
3300
3301
3302/******************************************************************************
3303 *
3304 * SkRlmtEvtModeChange - MODE_CHANGE
3305 *
3306 * Description:
3307 * This routine handles MODE_CHANGE events.
3308 *
3309 * Context:
3310 * runtime, pageable?
3311 * may be called after SK_INIT_IO
3312 *
3313 * Returns:
3314 * Nothing
3315 */
3316RLMT_STATIC void SkRlmtEvtModeChange(
3317SK_AC *pAC, /* Adapter Context */
3318SK_IOC IoC, /* I/O Context */
3319SK_EVPARA Para) /* SK_U32 NewMode; SK_U32 NetNumber */
3320{
3321 SK_EVPARA Para2;
3322 SK_U32 i;
3323 SK_U32 PrevRlmtMode;
3324
3325 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3326 ("SK_RLMT_MODE_CHANGE Event BEGIN.\n"))
3327
3328 if (Para.Para32[1] >= pAC->Rlmt.NumNets) {
3329 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3330 ("Bad NetNumber %d.\n", Para.Para32[1]))
3331 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3332 ("SK_RLMT_MODE_CHANGE Event EMPTY.\n"))
3333 return;
3334 }
3335
3336 Para.Para32[0] |= SK_RLMT_CHECK_LINK;
3337
3338 if ((pAC->Rlmt.Net[Para.Para32[1]].NumPorts == 1) &&
3339 Para.Para32[0] != SK_RLMT_MODE_CLS) {
3340 pAC->Rlmt.Net[Para.Para32[1]].RlmtMode = SK_RLMT_MODE_CLS;
3341 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3342 ("Forced RLMT mode to CLS on single port net.\n"))
3343 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3344 ("SK_RLMT_MODE_CHANGE Event EMPTY.\n"))
3345 return;
3346 }
3347
3348 /* Update RLMT mode. */
3349 PrevRlmtMode = pAC->Rlmt.Net[Para.Para32[1]].RlmtMode;
3350 pAC->Rlmt.Net[Para.Para32[1]].RlmtMode = Para.Para32[0];
3351
3352 if ((PrevRlmtMode & SK_RLMT_CHECK_LOC_LINK) !=
3353 (pAC->Rlmt.Net[Para.Para32[1]].RlmtMode & SK_RLMT_CHECK_LOC_LINK)) {
3354 /* SK_RLMT_CHECK_LOC_LINK bit changed. */
3355 if ((PrevRlmtMode & SK_RLMT_CHECK_OTHERS) == 0 &&
3356 pAC->Rlmt.Net[Para.Para32[1]].NumPorts > 1 &&
3357 pAC->Rlmt.Net[Para.Para32[1]].PortsUp >= 1) {
3358 /* 20001207 RA: Was "PortsUp == 1". */
3359 Para2.Para32[0] = Para.Para32[1];
3360 Para2.Para32[1] = (SK_U32)-1;
3361 SkTimerStart(pAC, IoC, &pAC->Rlmt.Net[Para.Para32[1]].LocTimer,
3362 pAC->Rlmt.Net[Para.Para32[1]].TimeoutValue,
3363 SKGE_RLMT, SK_RLMT_TIM, Para2);
3364 }
3365 }
3366
3367 if ((PrevRlmtMode & SK_RLMT_CHECK_SEG) !=
3368 (pAC->Rlmt.Net[Para.Para32[1]].RlmtMode & SK_RLMT_CHECK_SEG)) {
3369 /* SK_RLMT_CHECK_SEG bit changed. */
3370 for (i = 0; i < pAC->Rlmt.Net[Para.Para32[1]].NumPorts; i++) {
3371 (void)SkAddrMcClear(pAC, IoC,
3372 pAC->Rlmt.Net[Para.Para32[1]].Port[i]->PortNumber,
3373 SK_ADDR_PERMANENT | SK_MC_SW_ONLY);
3374
3375 /* Add RLMT MC address. */
3376 (void)SkAddrMcAdd(pAC, IoC,
3377 pAC->Rlmt.Net[Para.Para32[1]].Port[i]->PortNumber,
3378 &SkRlmtMcAddr, SK_ADDR_PERMANENT);
3379
3380 if ((pAC->Rlmt.Net[Para.Para32[1]].RlmtMode &
3381 SK_RLMT_CHECK_SEG) != 0) {
3382 /* Add BPDU MC address. */
3383 (void)SkAddrMcAdd(pAC, IoC,
3384 pAC->Rlmt.Net[Para.Para32[1]].Port[i]->PortNumber,
3385 &BridgeMcAddr, SK_ADDR_PERMANENT);
3386
3387 if (pAC->Rlmt.Net[Para.Para32[1]].RlmtState != SK_RLMT_RS_INIT) {
3388 if (!pAC->Rlmt.Net[Para.Para32[1]].Port[i]->LinkDown &&
3389 (Para2.pParaPtr = SkRlmtBuildSpanningTreePacket(
3390 pAC, IoC, i)) != NULL) {
3391 pAC->Rlmt.Net[Para.Para32[1]].Port[i]->RootIdSet =
3392 SK_FALSE;
3393 SkEventQueue(pAC, SKGE_DRV, SK_DRV_RLMT_SEND, Para2);
3394 }
3395 }
3396 }
3397 (void)SkAddrMcUpdate(pAC, IoC,
3398 pAC->Rlmt.Net[Para.Para32[1]].Port[i]->PortNumber);
3399 } /* for ... */
3400
3401 if ((pAC->Rlmt.Net[Para.Para32[1]].RlmtMode & SK_RLMT_CHECK_SEG) != 0) {
3402 Para2.Para32[0] = Para.Para32[1];
3403 Para2.Para32[1] = (SK_U32)-1;
3404 SkTimerStart(pAC, IoC, &pAC->Rlmt.Net[Para.Para32[1]].SegTimer,
3405 SK_RLMT_SEG_TO_VAL, SKGE_RLMT, SK_RLMT_SEG_TIM, Para2);
3406 }
3407 } /* SK_RLMT_CHECK_SEG bit changed. */
3408
3409 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3410 ("SK_RLMT_MODE_CHANGE Event END.\n"))
3411} /* SkRlmtEvtModeChange */
3412
3413
3414/******************************************************************************
3415 *
3416 * SkRlmtEvent - a PORT- or an RLMT-specific event happened
3417 *
3418 * Description:
3419 * This routine calls subroutines to handle PORT- and RLMT-specific events.
3420 *
3421 * Context:
3422 * runtime, pageable?
3423 * may be called after SK_INIT_IO
3424 *
3425 * Returns:
3426 * 0
3427 */
3428int SkRlmtEvent(
3429SK_AC *pAC, /* Adapter Context */
3430SK_IOC IoC, /* I/O Context */
3431SK_U32 Event, /* Event code */
3432SK_EVPARA Para) /* Event-specific parameter */
3433{
3434 switch (Event) {
wdenk42d1f032003-10-15 23:53:47 +0000[diff] [blame]3435
wdenk7152b1d2003-09-05 23:19:14 +0000[diff] [blame]3436 /* ----- PORT events ----- */
3437
3438 case SK_RLMT_PORTSTART_TIM: /* From RLMT via TIME. */
3439 SkRlmtEvtPortStartTim(pAC, IoC, Para);
3440 break;
3441 case SK_RLMT_LINK_UP: /* From SIRQ. */
3442 SkRlmtEvtLinkUp(pAC, IoC, Para);
3443 break;
3444 case SK_RLMT_PORTUP_TIM: /* From RLMT via TIME. */
3445 SkRlmtEvtPortUpTim(pAC, IoC, Para);
3446 break;
3447 case SK_RLMT_PORTDOWN: /* From RLMT. */
3448 case SK_RLMT_PORTDOWN_RX_TIM: /* From RLMT via TIME. */
3449 case SK_RLMT_PORTDOWN_TX_TIM: /* From RLMT via TIME. */
3450 SkRlmtEvtPortDownX(pAC, IoC, Event, Para);
3451 break;
3452 case SK_RLMT_LINK_DOWN: /* From SIRQ. */
3453 SkRlmtEvtLinkDown(pAC, IoC, Para);
3454 break;
3455 case SK_RLMT_PORT_ADDR: /* From ADDR. */
3456 SkRlmtEvtPortAddr(pAC, IoC, Para);
3457 break;
3458
3459 /* ----- RLMT events ----- */
3460
3461 case SK_RLMT_START: /* From DRV. */
3462 SkRlmtEvtStart(pAC, IoC, Para);
3463 break;
3464 case SK_RLMT_STOP: /* From DRV. */
3465 SkRlmtEvtStop(pAC, IoC, Para);
3466 break;
3467 case SK_RLMT_TIM: /* From RLMT via TIME. */
3468 SkRlmtEvtTim(pAC, IoC, Para);
3469 break;
3470 case SK_RLMT_SEG_TIM:
3471 SkRlmtEvtSegTim(pAC, IoC, Para);
3472 break;
3473 case SK_RLMT_PACKET_RECEIVED: /* From DRV. */
3474 SkRlmtEvtPacketRx(pAC, IoC, Para);
3475 break;
3476 case SK_RLMT_STATS_CLEAR: /* From PNMI. */
3477 SkRlmtEvtStatsClear(pAC, IoC, Para);
3478 break;
3479 case SK_RLMT_STATS_UPDATE: /* From PNMI. */
3480 SkRlmtEvtStatsUpdate(pAC, IoC, Para);
3481 break;
3482 case SK_RLMT_PREFPORT_CHANGE: /* From PNMI. */
3483 SkRlmtEvtPrefportChange(pAC, IoC, Para);
3484 break;
3485 case SK_RLMT_MODE_CHANGE: /* From PNMI. */
3486 SkRlmtEvtModeChange(pAC, IoC, Para);
3487 break;
3488 case SK_RLMT_SET_NETS: /* From DRV. */
3489 SkRlmtEvtSetNets(pAC, IoC, Para);
3490 break;
3491
3492 /* ----- Unknown events ----- */
3493
3494 default: /* Create error log entry. */
3495 SK_DBG_MSG(pAC, SK_DBGMOD_RLMT, SK_DBGCAT_CTRL,
3496 ("Unknown RLMT Event %d.\n", Event))
3497 SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_RLMT_E003, SKERR_RLMT_E003_MSG);
3498 break;
3499 } /* switch() */
3500
3501 return (0);
3502} /* SkRlmtEvent */
3503
3504#ifdef __cplusplus
3505}
3506#endif /* __cplusplus */
wdenk149dded2003-09-10 18:20:28 +0000[diff] [blame]3507
3508#endif /* CONFIG_SK98 */