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[people/ms/u-boot.git] / drivers / net / sk98lin / skgesirq.c
1 /******************************************************************************
2 *
3 * Name: skgesirq.c
4 * Project: GEnesis, PCI Gigabit Ethernet Adapter
5 * Version: $Revision: 1.83 $
6 * Date: $Date: 2003/02/05 15:10:59 $
7 * Purpose: Special IRQ module
8 *
9 ******************************************************************************/
10
11 /******************************************************************************
12 *
13 * (C)Copyright 1998-2003 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: skgesirq.c,v $
29 * Revision 1.83 2003/02/05 15:10:59 rschmidt
30 * Fixed setting of PLinkSpeedUsed in SkHWLinkUp() when
31 * auto-negotiation is disabled.
32 * Editorial changes.
33 *
34 * Revision 1.82 2003/01/29 13:34:33 rschmidt
35 * Added some typecasts to avoid compiler warnings.
36 *
37 * Revision 1.81 2002/12/05 10:49:51 rschmidt
38 * Fixed missing Link Down Event for fiber (Bug Id #10768)
39 * Added reading of cable length when link is up
40 * Removed testing of unused error bits in PHY ISR
41 * Editorial changes.
42 *
43 * Revision 1.80 2002/11/12 17:15:21 rschmidt
44 * Replaced SkPnmiGetVar() by ...MacStatistic() in SkMacParity().
45 * Editorial changes.
46 *
47 * Revision 1.79 2002/10/14 15:14:51 rschmidt
48 * Changed clearing of IS_M1_PAR_ERR (MAC 1 Parity Error) in
49 * SkMacParity() depending on GIChipRev (HW-Bug #8).
50 * Added error messages for GPHY Auto-Negotiation Error and
51 * FIFO Overflow/Underrun in SkPhyIsrGmac().
52 * Editorial changes.
53 *
54 * Revision 1.78 2002/10/10 15:54:29 mkarl
55 * changes for PLinkSpeedUsed
56 *
57 * Revision 1.77 2002/09/12 08:58:51 rwahl
58 * Retrieve counters needed for XMAC errata workarounds directly because
59 * PNMI returns corrected counter values (e.g. #10620).
60 *
61 * Revision 1.76 2002/08/16 15:21:54 rschmidt
62 * Replaced all if(GIChipId == CHIP_ID_GENESIS) with new entry GIGenesis.
63 * Replaced wrong 1st para pAC with IoC in SK_IN/OUT macros.
64 * Editorial changes.
65 *
66 * Revision 1.75 2002/08/12 13:50:47 rschmidt
67 * Changed clearing of IS_M1_PAR_ERR (MAC 1 Parity Error) in
68 * SkMacParity() by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE (HW-Bug #8).
69 * Added clearing of IS_IRQ_TIST_OV and IS_IRQ_SENSOR in SkGeHwErr().
70 * Corrected handling of Link Up and Auto-Negotiation Over for GPHY.
71 * in SkGePortCheckUpGmac().
72 * Editorial changes.
73 *
74 * Revision 1.74 2002/08/08 16:17:04 rschmidt
75 * Added PhyType check for SK_HWEV_SET_ROLE event (copper only)
76 * Changed Link Up check reading PHY Specific Status (YUKON)
77 * Editorial changes
78 *
79 * Revision 1.73 2002/07/15 18:36:53 rwahl
80 * Editorial changes.
81 *
82 * Revision 1.72 2002/07/15 15:46:26 rschmidt
83 * Added new event: SK_HWEV_SET_SPEED
84 * Editorial changes
85 *
86 * Revision 1.71 2002/06/10 09:34:19 rschmidt
87 * Editorial changes
88 *
89 * Revision 1.70 2002/06/05 08:29:18 rschmidt
90 * SkXmRxTxEnable() replaced by SkMacRxTxEnable().
91 * Editorial changes.
92 *
93 * Revision 1.69 2002/04/25 13:03:49 rschmidt
94 * Changes for handling YUKON.
95 * Use of #ifdef OTHER_PHY to eliminate code for unused Phy types.
96 * Replaced all XMAC-access macros by functions: SkMacRxTxDisable(),
97 * SkMacIrqDisable().
98 * Added handling for GMAC FIFO in SkMacParity().
99 * Replaced all SkXm...() functions with SkMac...() to handle also
100 * YUKON's GMAC.
101 * Macros for XMAC PHY access PHY_READ(), PHY_WRITE() replaced
102 * by functions SkXmPhyRead(), SkXmPhyWrite().
103 * Disabling all PHY interrupts moved to SkMacIrqDisable().
104 * Added handling for GPHY IRQ in SkGeSirqIsr().
105 * Removed status parameter from MAC IRQ handler SkMacIrq().
106 * Added SkGePortCheckUpGmac(), SkPhyIsrGmac() for GMAC.
107 * Editorial changes
108 *
109 * Revision 1.68 2002/02/26 15:24:53 rwahl
110 * Fix: no link with manual configuration (#10673). The previous fix for
111 * #10639 was removed. So for RLMT mode = CLS the RLMT may switch to
112 * misconfigured port. It should not occur for the other RLMT modes.
113 *
114 * Revision 1.67 2001/11/20 09:19:58 rwahl
115 * Reworked bugfix #10639 (no dependency to RLMT mode).
116 *
117 * Revision 1.66 2001/10/26 07:52:53 afischer
118 * Port switching bug in `check local link` mode
119 *
120 * Revision 1.65 2001/02/23 13:41:51 gklug
121 * fix: PHYS2INST should be used correctly for Dual Net operation
122 * chg: do no longer work with older PNMI
123 *
124 * Revision 1.64 2001/02/15 11:27:04 rassmann
125 * Working with RLMT v1 if SK_MAX_NETS undefined.
126 *
127 * Revision 1.63 2001/02/06 10:44:23 mkunz
128 * - NetIndex added to interface functions of pnmi V4 with dual net support
129 *
130 * Revision 1.62 2001/01/31 15:31:41 gklug
131 * fix: problem with autosensing an SR8800 switch
132 *
133 * Revision 1.61 2000/11/09 11:30:09 rassmann
134 * WA: Waiting after releasing reset until BCom chip is accessible.
135 *
136 * Revision 1.60 2000/10/18 12:37:48 cgoos
137 * Reinserted the comment for version 1.56.
138 *
139 * Revision 1.59 2000/10/18 12:22:20 cgoos
140 * Added workaround for half duplex hangup.
141 *
142 * Revision 1.58 2000/09/28 13:06:04 gklug
143 * fix: BCom may NOT be touched if XMAC is in RESET state
144 *
145 * Revision 1.57 2000/09/08 12:38:39 cgoos
146 * Added forgotten variable declaration.
147 *
148 * Revision 1.56 2000/09/08 08:12:13 cgoos
149 * Changed handling of parity errors in SkGeHwErr (correct reset of error).
150 *
151 * Revision 1.55 2000/06/19 08:36:25 cgoos
152 * Changed comment.
153 *
154 * Revision 1.54 2000/05/22 08:45:57 malthoff
155 * Fix: #10523 is valid for all BCom PHYs.
156 *
157 * Revision 1.53 2000/05/19 10:20:30 cgoos
158 * Removed Solaris debug output code.
159 *
160 * Revision 1.52 2000/05/19 10:19:37 cgoos
161 * Added PHY state check in HWLinkDown.
162 * Move PHY interrupt code to IS_EXT_REG case in SkGeSirqIsr.
163 *
164 * Revision 1.51 2000/05/18 05:56:20 cgoos
165 * Fixed typo.
166 *
167 * Revision 1.50 2000/05/17 12:49:49 malthoff
168 * Fixes BCom link bugs (#10523).
169 *
170 * Revision 1.49 1999/12/17 11:02:50 gklug
171 * fix: read PHY_STAT of Broadcom chip more often to assure good status
172 *
173 * Revision 1.48 1999/12/06 10:01:17 cgoos
174 * Added SET function for Role.
175 *
176 * Revision 1.47 1999/11/22 13:34:24 cgoos
177 * Changed license header to GPL.
178 *
179 * Revision 1.46 1999/09/16 10:30:07 cgoos
180 * Removed debugging output statement from Linux.
181 *
182 * Revision 1.45 1999/09/16 07:32:55 cgoos
183 * Fixed dual-port copperfield bug (PHY_READ from resetted port).
184 * Removed some unused variables.
185 *
186 * Revision 1.44 1999/08/03 15:25:04 cgoos
187 * Removed workaround for disabled interrupts in half duplex mode.
188 *
189 * Revision 1.43 1999/08/03 14:27:58 cgoos
190 * Removed SENSE mode code from SkGePortCheckUpBcom.
191 *
192 * Revision 1.42 1999/07/26 09:16:54 cgoos
193 * Added some typecasts to avoid compiler warnings.
194 *
195 * Revision 1.41 1999/05/19 07:28:59 cgoos
196 * Changes for 1000Base-T.
197 *
198 * Revision 1.40 1999/04/08 13:59:39 gklug
199 * fix: problem with 3Com switches endless RESTARTs
200 *
201 * Revision 1.39 1999/03/08 10:10:52 gklug
202 * fix: AutoSensing did switch to next mode even if LiPa indicated offline
203 *
204 * Revision 1.38 1999/03/08 09:49:03 gklug
205 * fix: Bug using pAC instead of IoC, causing AIX problems
206 * fix: change compare for Linux compiler bug workaround
207 *
208 * Revision 1.37 1999/01/28 14:51:33 gklug
209 * fix: monitor for autosensing and extra RESETS the RX on wire counters
210 *
211 * Revision 1.36 1999/01/22 09:19:55 gklug
212 * fix: Init DupMode and InitPauseMd are now called in RxTxEnable
213 *
214 * Revision 1.35 1998/12/11 15:22:59 gklug
215 * chg: autosensing: check for receive if manual mode was guessed
216 * chg: simplified workaround for XMAC errata
217 * chg: wait additional 100 ms before link goes up.
218 * chg: autoneg timeout to 600 ms
219 * chg: restart autoneg even if configured to autonegotiation
220 *
221 * Revision 1.34 1998/12/10 10:33:14 gklug
222 * add: more debug messages
223 * fix: do a new InitPhy if link went down (AutoSensing problem)
224 * chg: Check for zero shorts if link is NOT up
225 * chg: reset Port if link goes down
226 * chg: wait additional 100 ms when link comes up to check shorts
227 * fix: dummy read extended autoneg status to prevent link going down immediately
228 *
229 * Revision 1.33 1998/12/07 12:18:29 gklug
230 * add: refinement of autosense mode: take into account the autoneg cap of LiPa
231 *
232 * Revision 1.32 1998/12/07 07:11:21 gklug
233 * fix: compiler warning
234 *
235 * Revision 1.31 1998/12/02 09:29:05 gklug
236 * fix: WA XMAC Errata: FCSCt check was not correct.
237 * fix: WA XMAC Errata: Prec Counter were NOT updated in case of short checks.
238 * fix: Clear Stat : now clears the Prev counters of all known Ports
239 *
240 * Revision 1.30 1998/12/01 10:54:15 gklug
241 * dd: workaround for XMAC errata changed. Check RX count and CRC err Count, too.
242 *
243 * Revision 1.29 1998/12/01 10:01:53 gklug
244 * fix: if MAC IRQ occurs during port down, this will be handled correctly
245 *
246 * Revision 1.28 1998/11/26 16:22:11 gklug
247 * fix: bug in autosense if manual modes are used
248 *
249 * Revision 1.27 1998/11/26 15:50:06 gklug
250 * fix: PNMI needs to set PLinkModeConf
251 *
252 * Revision 1.26 1998/11/26 14:51:58 gklug
253 * add: AutoSensing functionalty
254 *
255 * Revision 1.25 1998/11/26 07:34:37 gklug
256 * fix: Init PrevShorts when restarting port due to Link connection
257 *
258 * Revision 1.24 1998/11/25 10:57:32 gklug
259 * fix: remove unreferenced local vars
260 *
261 * Revision 1.23 1998/11/25 08:26:40 gklug
262 * fix: don't do a RESET on a starting or stopping port
263 *
264 * Revision 1.22 1998/11/24 13:29:44 gklug
265 * add: Workaround for MAC parity errata
266 *
267 * Revision 1.21 1998/11/18 15:31:06 gklug
268 * fix: lint bugs
269 *
270 * Revision 1.20 1998/11/18 12:58:54 gklug
271 * fix: use PNMI query instead of hardware access
272 *
273 * Revision 1.19 1998/11/18 12:54:55 gklug
274 * chg: add new workaround for XMAC Errata
275 * add: short event counter monitoring on active link too
276 *
277 * Revision 1.18 1998/11/13 14:27:41 malthoff
278 * Bug Fix: Packet Arbiter Timeout was not cleared correctly
279 * for timeout on TX1 and TX2.
280 *
281 * Revision 1.17 1998/11/04 07:01:59 cgoos
282 * Moved HW link poll sequence.
283 * Added call to SkXmRxTxEnable.
284 *
285 * Revision 1.16 1998/11/03 13:46:03 gklug
286 * add: functionality of SET_LMODE and SET_FLOW_MODE
287 * fix: send RLMT LinkDown event when Port stop is given with LinkUp
288 *
289 * Revision 1.15 1998/11/03 12:56:47 gklug
290 * fix: Needs more events
291 *
292 * Revision 1.14 1998/10/30 07:36:35 gklug
293 * rmv: unnecessary code
294 *
295 * Revision 1.13 1998/10/29 15:21:57 gklug
296 * add: Poll link feature for activating HW link
297 * fix: Deactivate HWLink when Port STOP is given
298 *
299 * Revision 1.12 1998/10/28 07:38:57 cgoos
300 * Checking link status at begin of SkHWLinkUp.
301 *
302 * Revision 1.11 1998/10/22 09:46:50 gklug
303 * fix SysKonnectFileId typo
304 *
305 * Revision 1.10 1998/10/14 13:57:47 gklug
306 * add: Port start/stop event
307 *
308 * Revision 1.9 1998/10/14 05:48:29 cgoos
309 * Added definition for Para.
310 *
311 * Revision 1.8 1998/10/14 05:40:09 gklug
312 * add: Hardware Linkup signal used
313 *
314 * Revision 1.7 1998/10/09 06:50:20 malthoff
315 * Remove ID_sccs by SysKonnectFileId.
316 *
317 * Revision 1.6 1998/10/08 09:11:49 gklug
318 * add: clear IRQ commands
319 *
320 * Revision 1.5 1998/10/02 14:27:35 cgoos
321 * Fixed some typos and wrong event names.
322 *
323 * Revision 1.4 1998/10/02 06:24:17 gklug
324 * add: HW error function
325 * fix: OUT macros
326 *
327 * Revision 1.3 1998/10/01 07:03:00 gklug
328 * add: ISR for the usual interrupt source register
329 *
330 * Revision 1.2 1998/09/03 13:50:33 gklug
331 * add: function prototypes
332 *
333 * Revision 1.1 1998/08/27 11:50:21 gklug
334 * initial revision
335 *
336 *
337 *
338 ******************************************************************************/
339
340 #include <config.h>
341
342 #ifdef CONFIG_SK98
343
344 /*
345 * Special Interrupt handler
346 *
347 * The following abstract should show how this module is included
348 * in the driver path:
349 *
350 * In the ISR of the driver the bits for frame transmission complete and
351 * for receive complete are checked and handled by the driver itself.
352 * The bits of the slow path mask are checked after that and then the
353 * entry into the so-called "slow path" is prepared. It is an implementors
354 * decision whether this is executed directly or just scheduled by
355 * disabling the mask. In the interrupt service routine some events may be
356 * generated, so it would be a good idea to call the EventDispatcher
357 * right after this ISR.
358 *
359 * The Interrupt source register of the adapter is NOT read by this module.
360 * SO if the drivers implementor needs a while loop around the
361 * slow data paths interrupt bits, he needs to call the SkGeSirqIsr() for
362 * each loop entered.
363 *
364 * However, the MAC Interrupt status registers are read in a while loop.
365 *
366 */
367
368 static const char SysKonnectFileId[] =
369 "$Id: skgesirq.c,v 1.83 2003/02/05 15:10:59 rschmidt Exp $" ;
370
371 #include "h/skdrv1st.h" /* Driver Specific Definitions */
372 #include "h/skgepnmi.h" /* PNMI Definitions */
373 #include "h/skrlmt.h" /* RLMT Definitions */
374 #include "h/skdrv2nd.h" /* Adapter Control and Driver specific Def. */
375
376 /* local function prototypes */
377 static int SkGePortCheckUpXmac(SK_AC*, SK_IOC, int);
378 static int SkGePortCheckUpBcom(SK_AC*, SK_IOC, int);
379 static int SkGePortCheckUpGmac(SK_AC*, SK_IOC, int);
380 static void SkPhyIsrBcom(SK_AC*, SK_IOC, int, SK_U16);
381 static void SkPhyIsrGmac(SK_AC*, SK_IOC, int, SK_U16);
382 #ifdef OTHER_PHY
383 static int SkGePortCheckUpLone(SK_AC*, SK_IOC, int);
384 static int SkGePortCheckUpNat(SK_AC*, SK_IOC, int);
385 static void SkPhyIsrLone(SK_AC*, SK_IOC, int, SK_U16);
386 #endif /* OTHER_PHY */
387
388 /*
389 * array of Rx counter from XMAC which are checked
390 * in AutoSense mode to check whether a link is not able to auto-negotiate.
391 */
392 static const SK_U16 SkGeRxRegs[]= {
393 XM_RXF_64B,
394 XM_RXF_127B,
395 XM_RXF_255B,
396 XM_RXF_511B,
397 XM_RXF_1023B,
398 XM_RXF_MAX_SZ
399 } ;
400
401 #ifdef __C2MAN__
402 /*
403 * Special IRQ function
404 *
405 * General Description:
406 *
407 */
408 intro()
409 {}
410 #endif
411
412 /* Define return codes of SkGePortCheckUp and CheckShort */
413 #define SK_HW_PS_NONE 0 /* No action needed */
414 #define SK_HW_PS_RESTART 1 /* Restart needed */
415 #define SK_HW_PS_LINK 2 /* Link Up actions needed */
416
417 /******************************************************************************
418 *
419 * SkHWInitDefSense() - Default Autosensing mode initialization
420 *
421 * Description: sets the PLinkMode for HWInit
422 *
423 * Returns: N/A
424 */
425 static void SkHWInitDefSense(
426 SK_AC *pAC, /* adapter context */
427 SK_IOC IoC, /* IO context */
428 int Port) /* Port Index (MAC_1 + n) */
429 {
430 SK_GEPORT *pPrt; /* GIni Port struct pointer */
431
432 pPrt = &pAC->GIni.GP[Port];
433
434 pPrt->PAutoNegTimeOut = 0;
435
436 if (pPrt->PLinkModeConf != SK_LMODE_AUTOSENSE) {
437 pPrt->PLinkMode = pPrt->PLinkModeConf;
438 return;
439 }
440
441 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
442 ("AutoSensing: First mode %d on Port %d\n",
443 (int)SK_LMODE_AUTOFULL, Port));
444
445 pPrt->PLinkMode = SK_LMODE_AUTOFULL;
446
447 return;
448 } /* SkHWInitDefSense */
449
450
451 /******************************************************************************
452 *
453 * SkHWSenseGetNext() - Get Next Autosensing Mode
454 *
455 * Description: gets the appropriate next mode
456 *
457 * Note:
458 *
459 */
460 SK_U8 SkHWSenseGetNext(
461 SK_AC *pAC, /* adapter context */
462 SK_IOC IoC, /* IO context */
463 int Port) /* Port Index (MAC_1 + n) */
464 {
465 SK_GEPORT *pPrt; /* GIni Port struct pointer */
466
467 pPrt = &pAC->GIni.GP[Port];
468
469 pPrt->PAutoNegTimeOut = 0;
470
471 if (pPrt->PLinkModeConf != SK_LMODE_AUTOSENSE) {
472 /* Leave all as configured */
473 return(pPrt->PLinkModeConf);
474 }
475
476 if (pPrt->PLinkMode == SK_LMODE_AUTOFULL) {
477 /* Return next mode AUTOBOTH */
478 return(SK_LMODE_AUTOBOTH);
479 }
480
481 /* Return default autofull */
482 return(SK_LMODE_AUTOFULL);
483 } /* SkHWSenseGetNext */
484
485
486 /******************************************************************************
487 *
488 * SkHWSenseSetNext() - Autosensing Set next mode
489 *
490 * Description: sets the appropriate next mode
491 *
492 * Returns: N/A
493 */
494 void SkHWSenseSetNext(
495 SK_AC *pAC, /* adapter context */
496 SK_IOC IoC, /* IO context */
497 int Port, /* Port Index (MAC_1 + n) */
498 SK_U8 NewMode) /* New Mode to be written in sense mode */
499 {
500 SK_GEPORT *pPrt; /* GIni Port struct pointer */
501
502 pPrt = &pAC->GIni.GP[Port];
503
504 pPrt->PAutoNegTimeOut = 0;
505
506 if (pPrt->PLinkModeConf != SK_LMODE_AUTOSENSE) {
507 return;
508 }
509
510 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
511 ("AutoSensing: next mode %d on Port %d\n",
512 (int)NewMode, Port));
513
514 pPrt->PLinkMode = NewMode;
515
516 return;
517 } /* SkHWSenseSetNext */
518
519
520 /******************************************************************************
521 *
522 * SkHWLinkDown() - Link Down handling
523 *
524 * Description: handles the hardware link down signal
525 *
526 * Returns: N/A
527 */
528 void SkHWLinkDown(
529 SK_AC *pAC, /* adapter context */
530 SK_IOC IoC, /* IO context */
531 int Port) /* Port Index (MAC_1 + n) */
532 {
533 SK_GEPORT *pPrt; /* GIni Port struct pointer */
534
535 pPrt = &pAC->GIni.GP[Port];
536
537 /* Disable all MAC interrupts */
538 SkMacIrqDisable(pAC, IoC, Port);
539
540 /* Disable Receiver and Transmitter */
541 SkMacRxTxDisable(pAC, IoC, Port);
542
543 /* Init default sense mode */
544 SkHWInitDefSense(pAC, IoC, Port);
545
546 if (!pPrt->PHWLinkUp) {
547 return;
548 }
549
550 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
551 ("Link down Port %d\n", Port));
552
553 /* Set Link to DOWN */
554 pPrt->PHWLinkUp = SK_FALSE;
555
556 /* Reset Port stati */
557 pPrt->PLinkModeStatus = SK_LMODE_STAT_UNKNOWN;
558 pPrt->PFlowCtrlStatus = SK_FLOW_STAT_NONE;
559 pPrt->PLinkSpeedUsed = SK_LSPEED_STAT_INDETERMINATED;
560
561 /* Re-init Phy especially when the AutoSense default is set now */
562 SkMacInitPhy(pAC, IoC, Port, SK_FALSE);
563
564 /* GP0: used for workaround of Rev. C Errata 2 */
565
566 /* Do NOT signal to RLMT */
567
568 /* Do NOT start the timer here */
569 } /* SkHWLinkDown */
570
571
572 /******************************************************************************
573 *
574 * SkHWLinkUp() - Link Up handling
575 *
576 * Description: handles the hardware link up signal
577 *
578 * Returns: N/A
579 */
580 void SkHWLinkUp(
581 SK_AC *pAC, /* adapter context */
582 SK_IOC IoC, /* IO context */
583 int Port) /* Port Index (MAC_1 + n) */
584 {
585 SK_GEPORT *pPrt; /* GIni Port struct pointer */
586
587 pPrt = &pAC->GIni.GP[Port];
588
589 if (pPrt->PHWLinkUp) {
590 /* We do NOT need to proceed on active link */
591 return;
592 }
593
594 pPrt->PHWLinkUp = SK_TRUE;
595 pPrt->PAutoNegFail = SK_FALSE;
596 pPrt->PLinkModeStatus = SK_LMODE_STAT_UNKNOWN;
597
598 if (pPrt->PLinkMode != SK_LMODE_AUTOHALF &&
599 pPrt->PLinkMode != SK_LMODE_AUTOFULL &&
600 pPrt->PLinkMode != SK_LMODE_AUTOBOTH) {
601 /* Link is up and no Auto-negotiation should be done */
602
603 /* Link speed should be the configured one */
604 switch (pPrt->PLinkSpeed) {
605 case SK_LSPEED_AUTO:
606 /* default is 1000 Mbps */
607 case SK_LSPEED_1000MBPS:
608 pPrt->PLinkSpeedUsed = SK_LSPEED_STAT_1000MBPS;
609 break;
610 case SK_LSPEED_100MBPS:
611 pPrt->PLinkSpeedUsed = SK_LSPEED_STAT_100MBPS;
612 break;
613 case SK_LSPEED_10MBPS:
614 pPrt->PLinkSpeedUsed = SK_LSPEED_STAT_10MBPS;
615 break;
616 }
617
618 /* Set Link Mode Status */
619 if (pPrt->PLinkMode == SK_LMODE_FULL) {
620 pPrt->PLinkModeStatus = SK_LMODE_STAT_FULL;
621 }
622 else {
623 pPrt->PLinkModeStatus = SK_LMODE_STAT_HALF;
624 }
625
626 /* No flow control without auto-negotiation */
627 pPrt->PFlowCtrlStatus = SK_FLOW_STAT_NONE;
628
629 /* enable Rx/Tx */
630 SkMacRxTxEnable(pAC, IoC, Port);
631 }
632 } /* SkHWLinkUp */
633
634
635 /******************************************************************************
636 *
637 * SkMacParity() - MAC parity workaround
638 *
639 * Description: handles MAC parity errors correctly
640 *
641 * Returns: N/A
642 */
643 static void SkMacParity(
644 SK_AC *pAC, /* adapter context */
645 SK_IOC IoC, /* IO context */
646 int Port) /* Port Index of the port failed */
647 {
648 SK_EVPARA Para;
649 SK_GEPORT *pPrt; /* GIni Port struct pointer */
650 SK_U32 TxMax; /* TxMax Counter */
651
652 pPrt = &pAC->GIni.GP[Port];
653
654 /* Clear IRQ Tx Parity Error */
655 if (pAC->GIni.GIGenesis) {
656 SK_OUT16(IoC, MR_ADDR(Port, TX_MFF_CTRL1), MFF_CLR_PERR);
657 }
658 else {
659 /* HW-Bug #8: cleared by GMF_CLI_TX_FC instead of GMF_CLI_TX_PE */
660 SK_OUT8(IoC, MR_ADDR(Port, TX_GMF_CTRL_T),
661 (SK_U8)((pAC->GIni.GIChipRev == 0) ? GMF_CLI_TX_FC : GMF_CLI_TX_PE));
662 }
663
664 if (pPrt->PCheckPar) {
665 if (Port == MAC_1) {
666 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E016, SKERR_SIRQ_E016MSG);
667 }
668 else {
669 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E017, SKERR_SIRQ_E017MSG);
670 }
671 Para.Para64 = Port;
672 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
673 Para.Para32[0] = Port;
674 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
675
676 return;
677 }
678
679 /* Check whether frames with a size of 1k were sent */
680 if (pAC->GIni.GIGenesis) {
681 /* Snap statistic counters */
682 (void)SkXmUpdateStats(pAC, IoC, Port);
683
684 (void)SkXmMacStatistic(pAC, IoC, Port, XM_TXF_MAX_SZ, &TxMax);
685 }
686 else {
687 (void)SkGmMacStatistic(pAC, IoC, Port, GM_TXF_1518B, &TxMax);
688 }
689
690 if (TxMax > 0) {
691 /* From now on check the parity */
692 pPrt->PCheckPar = SK_TRUE;
693 }
694 } /* SkMacParity */
695
696
697 /******************************************************************************
698 *
699 * SkGeHwErr() - Hardware Error service routine
700 *
701 * Description: handles all HW Error interrupts
702 *
703 * Returns: N/A
704 */
705 static void SkGeHwErr(
706 SK_AC *pAC, /* adapter context */
707 SK_IOC IoC, /* IO context */
708 SK_U32 HwStatus) /* Interrupt status word */
709 {
710 SK_EVPARA Para;
711 SK_U16 Word;
712
713 if ((HwStatus & (IS_IRQ_MST_ERR | IS_IRQ_STAT)) != 0) {
714 /* PCI Errors occured */
715 if ((HwStatus & IS_IRQ_STAT) != 0) {
716 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E013, SKERR_SIRQ_E013MSG);
717 }
718 else {
719 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E012, SKERR_SIRQ_E012MSG);
720 }
721
722 /* Reset all bits in the PCI STATUS register */
723 SK_IN16(IoC, PCI_C(PCI_STATUS), &Word);
724
725 SK_OUT8(IoC, B2_TST_CTRL1, TST_CFG_WRITE_ON);
726 SK_OUT16(IoC, PCI_C(PCI_STATUS), Word | PCI_ERRBITS);
727 SK_OUT8(IoC, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
728
729 Para.Para64 = 0;
730 SkEventQueue(pAC, SKGE_DRV, SK_DRV_ADAP_FAIL, Para);
731 }
732
733 if (pAC->GIni.GIGenesis) {
734 if ((HwStatus & IS_NO_STAT_M1) != 0) {
735 /* Ignore it */
736 /* This situation is also indicated in the descriptor */
737 SK_OUT16(IoC, MR_ADDR(MAC_1, RX_MFF_CTRL1), MFF_CLR_INSTAT);
738 }
739
740 if ((HwStatus & IS_NO_STAT_M2) != 0) {
741 /* Ignore it */
742 /* This situation is also indicated in the descriptor */
743 SK_OUT16(IoC, MR_ADDR(MAC_2, RX_MFF_CTRL1), MFF_CLR_INSTAT);
744 }
745
746 if ((HwStatus & IS_NO_TIST_M1) != 0) {
747 /* Ignore it */
748 /* This situation is also indicated in the descriptor */
749 SK_OUT16(IoC, MR_ADDR(MAC_1, RX_MFF_CTRL1), MFF_CLR_INTIST);
750 }
751
752 if ((HwStatus & IS_NO_TIST_M2) != 0) {
753 /* Ignore it */
754 /* This situation is also indicated in the descriptor */
755 SK_OUT16(IoC, MR_ADDR(MAC_2, RX_MFF_CTRL1), MFF_CLR_INTIST);
756 }
757 }
758 else { /* YUKON */
759 /* This is necessary only for Rx timing measurements */
760 if ((HwStatus & IS_IRQ_TIST_OV) != 0) {
761 /* Clear Time Stamp Timer IRQ */
762 SK_OUT8(IoC, GMAC_TI_ST_CTRL, (SK_U8)GMT_ST_CLR_IRQ);
763 }
764
765 if ((HwStatus & IS_IRQ_SENSOR) != 0) {
766 /* Clear I2C IRQ */
767 SK_OUT32(IoC, B2_I2C_IRQ, I2C_CLR_IRQ);
768 }
769 }
770
771 if ((HwStatus & IS_RAM_RD_PAR) != 0) {
772 SK_OUT16(IoC, B3_RI_CTRL, RI_CLR_RD_PERR);
773 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E014, SKERR_SIRQ_E014MSG);
774 Para.Para64 = 0;
775 SkEventQueue(pAC, SKGE_DRV, SK_DRV_ADAP_FAIL, Para);
776 }
777
778 if ((HwStatus & IS_RAM_WR_PAR) != 0) {
779 SK_OUT16(IoC, B3_RI_CTRL, RI_CLR_WR_PERR);
780 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E015, SKERR_SIRQ_E015MSG);
781 Para.Para64 = 0;
782 SkEventQueue(pAC, SKGE_DRV, SK_DRV_ADAP_FAIL, Para);
783 }
784
785 if ((HwStatus & IS_M1_PAR_ERR) != 0) {
786 SkMacParity(pAC, IoC, MAC_1);
787 }
788
789 if ((HwStatus & IS_M2_PAR_ERR) != 0) {
790 SkMacParity(pAC, IoC, MAC_2);
791 }
792
793 if ((HwStatus & IS_R1_PAR_ERR) != 0) {
794 /* Clear IRQ */
795 SK_OUT32(IoC, B0_R1_CSR, CSR_IRQ_CL_P);
796
797 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E018, SKERR_SIRQ_E018MSG);
798 Para.Para64 = MAC_1;
799 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
800 Para.Para32[0] = MAC_1;
801 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
802 }
803
804 if ((HwStatus & IS_R2_PAR_ERR) != 0) {
805 /* Clear IRQ */
806 SK_OUT32(IoC, B0_R2_CSR, CSR_IRQ_CL_P);
807
808 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E019, SKERR_SIRQ_E019MSG);
809 Para.Para64 = MAC_2;
810 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
811 Para.Para32[0] = MAC_2;
812 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
813 }
814 } /* SkGeHwErr */
815
816
817 /******************************************************************************
818 *
819 * SkGeSirqIsr() - Special Interrupt Service Routine
820 *
821 * Description: handles all non data transfer specific interrupts (slow path)
822 *
823 * Returns: N/A
824 */
825 void SkGeSirqIsr(
826 SK_AC *pAC, /* adapter context */
827 SK_IOC IoC, /* IO context */
828 SK_U32 Istatus) /* Interrupt status word */
829 {
830 SK_EVPARA Para;
831 SK_U32 RegVal32; /* Read register value */
832 SK_GEPORT *pPrt; /* GIni Port struct pointer */
833 unsigned Len;
834 SK_U64 Octets;
835 SK_U16 PhyInt;
836 SK_U16 PhyIMsk;
837 int i;
838
839 if ((Istatus & IS_HW_ERR) != 0) {
840 /* read the HW Error Interrupt source */
841 SK_IN32(IoC, B0_HWE_ISRC, &RegVal32);
842
843 SkGeHwErr(pAC, IoC, RegVal32);
844 }
845
846 /*
847 * Packet Timeout interrupts
848 */
849 /* Check whether MACs are correctly initialized */
850 if (((Istatus & (IS_PA_TO_RX1 | IS_PA_TO_TX1)) != 0) &&
851 pAC->GIni.GP[MAC_1].PState == SK_PRT_RESET) {
852 /* MAC 1 was not initialized but Packet timeout occured */
853 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E004,
854 SKERR_SIRQ_E004MSG);
855 }
856
857 if (((Istatus & (IS_PA_TO_RX2 | IS_PA_TO_TX2)) != 0) &&
858 pAC->GIni.GP[MAC_2].PState == SK_PRT_RESET) {
859 /* MAC 2 was not initialized but Packet timeout occured */
860 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E005,
861 SKERR_SIRQ_E005MSG);
862 }
863
864 if ((Istatus & IS_PA_TO_RX1) != 0) {
865 /* Means network is filling us up */
866 SK_ERR_LOG(pAC, SK_ERRCL_HW | SK_ERRCL_INIT, SKERR_SIRQ_E002,
867 SKERR_SIRQ_E002MSG);
868 SK_OUT16(IoC, B3_PA_CTRL, PA_CLR_TO_RX1);
869 }
870
871 if ((Istatus & IS_PA_TO_RX2) != 0) {
872 /* Means network is filling us up */
873 SK_ERR_LOG(pAC, SK_ERRCL_HW | SK_ERRCL_INIT, SKERR_SIRQ_E003,
874 SKERR_SIRQ_E003MSG);
875 SK_OUT16(IoC, B3_PA_CTRL, PA_CLR_TO_RX2);
876 }
877
878 if ((Istatus & IS_PA_TO_TX1) != 0) {
879
880 pPrt = &pAC->GIni.GP[0];
881
882 /* May be a normal situation in a server with a slow network */
883 SK_OUT16(IoC, B3_PA_CTRL, PA_CLR_TO_TX1);
884
885 /*
886 * workaround: if in half duplex mode, check for Tx hangup.
887 * Read number of TX'ed bytes, wait for 10 ms, then compare
888 * the number with current value. If nothing changed, we assume
889 * that Tx is hanging and do a FIFO flush (see event routine).
890 */
891 if ((pPrt->PLinkModeStatus == SK_LMODE_STAT_HALF ||
892 pPrt->PLinkModeStatus == SK_LMODE_STAT_AUTOHALF) &&
893 !pPrt->HalfDupTimerActive) {
894 /*
895 * many more pack. arb. timeouts may come in between,
896 * we ignore those
897 */
898 pPrt->HalfDupTimerActive = SK_TRUE;
899
900 Len = sizeof(SK_U64);
901 SkPnmiGetVar(pAC, IoC, OID_SKGE_STAT_TX_OCTETS, (char *)&Octets,
902 &Len, (SK_U32) SK_PNMI_PORT_PHYS2INST(pAC, 0),
903 pAC->Rlmt.Port[0].Net->NetNumber);
904
905 pPrt->LastOctets = Octets;
906
907 Para.Para32[0] = 0;
908 SkTimerStart(pAC, IoC, &pPrt->HalfDupChkTimer, SK_HALFDUP_CHK_TIME,
909 SKGE_HWAC, SK_HWEV_HALFDUP_CHK, Para);
910 }
911 }
912
913 if ((Istatus & IS_PA_TO_TX2) != 0) {
914
915 pPrt = &pAC->GIni.GP[1];
916
917 /* May be a normal situation in a server with a slow network */
918 SK_OUT16(IoC, B3_PA_CTRL, PA_CLR_TO_TX2);
919
920 /* workaround: see above */
921 if ((pPrt->PLinkModeStatus == SK_LMODE_STAT_HALF ||
922 pPrt->PLinkModeStatus == SK_LMODE_STAT_AUTOHALF) &&
923 !pPrt->HalfDupTimerActive) {
924 pPrt->HalfDupTimerActive = SK_TRUE;
925
926 Len = sizeof(SK_U64);
927 SkPnmiGetVar(pAC, IoC, OID_SKGE_STAT_TX_OCTETS, (char *)&Octets,
928 &Len, (SK_U32) SK_PNMI_PORT_PHYS2INST(pAC, 1),
929 pAC->Rlmt.Port[1].Net->NetNumber);
930
931 pPrt->LastOctets = Octets;
932
933 Para.Para32[0] = 1;
934 SkTimerStart(pAC, IoC, &pPrt->HalfDupChkTimer, SK_HALFDUP_CHK_TIME,
935 SKGE_HWAC, SK_HWEV_HALFDUP_CHK, Para);
936 }
937 }
938
939 /* Check interrupts of the particular queues */
940 if ((Istatus & IS_R1_C) != 0) {
941 /* Clear IRQ */
942 SK_OUT32(IoC, B0_R1_CSR, CSR_IRQ_CL_C);
943 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E006,
944 SKERR_SIRQ_E006MSG);
945 Para.Para64 = MAC_1;
946 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
947 Para.Para32[0] = MAC_1;
948 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
949 }
950
951 if ((Istatus & IS_R2_C) != 0) {
952 /* Clear IRQ */
953 SK_OUT32(IoC, B0_R2_CSR, CSR_IRQ_CL_C);
954 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E007,
955 SKERR_SIRQ_E007MSG);
956 Para.Para64 = MAC_2;
957 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
958 Para.Para32[0] = MAC_2;
959 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
960 }
961
962 if ((Istatus & IS_XS1_C) != 0) {
963 /* Clear IRQ */
964 SK_OUT32(IoC, B0_XS1_CSR, CSR_IRQ_CL_C);
965 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E008,
966 SKERR_SIRQ_E008MSG);
967 Para.Para64 = MAC_1;
968 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
969 Para.Para32[0] = MAC_1;
970 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
971 }
972
973 if ((Istatus & IS_XA1_C) != 0) {
974 /* Clear IRQ */
975 SK_OUT32(IoC, B0_XA1_CSR, CSR_IRQ_CL_C);
976 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E009,
977 SKERR_SIRQ_E009MSG);
978 Para.Para64 = MAC_1;
979 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
980 Para.Para32[0] = MAC_1;
981 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
982 }
983
984 if ((Istatus & IS_XS2_C) != 0) {
985 /* Clear IRQ */
986 SK_OUT32(IoC, B0_XS2_CSR, CSR_IRQ_CL_C);
987 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E010,
988 SKERR_SIRQ_E010MSG);
989 Para.Para64 = MAC_2;
990 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
991 Para.Para32[0] = MAC_2;
992 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
993 }
994
995 if ((Istatus & IS_XA2_C) != 0) {
996 /* Clear IRQ */
997 SK_OUT32(IoC, B0_XA2_CSR, CSR_IRQ_CL_C);
998 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E011,
999 SKERR_SIRQ_E011MSG);
1000 Para.Para64 = MAC_2;
1001 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_FAIL, Para);
1002 Para.Para32[0] = MAC_2;
1003 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
1004 }
1005
1006 /* External reg interrupt */
1007 if ((Istatus & IS_EXT_REG) != 0) {
1008 /* Test IRQs from PHY */
1009 for (i = 0; i < pAC->GIni.GIMacsFound; i++) {
1010
1011 pPrt = &pAC->GIni.GP[i];
1012
1013 if (pPrt->PState == SK_PRT_RESET) {
1014 continue;
1015 }
1016
1017 switch (pPrt->PhyType) {
1018
1019 case SK_PHY_XMAC:
1020 break;
1021
1022 case SK_PHY_BCOM:
1023 SkXmPhyRead(pAC, IoC, i, PHY_BCOM_INT_STAT, &PhyInt);
1024 SkXmPhyRead(pAC, IoC, i, PHY_BCOM_INT_MASK, &PhyIMsk);
1025
1026 if ((PhyInt & ~PhyIMsk) != 0) {
1027 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1028 ("Port %d Bcom Int: 0x%04X Mask: 0x%04X\n",
1029 i, PhyInt, PhyIMsk));
1030 SkPhyIsrBcom(pAC, IoC, i, PhyInt);
1031 }
1032 break;
1033
1034 case SK_PHY_MARV_COPPER:
1035 case SK_PHY_MARV_FIBER:
1036 SkGmPhyRead(pAC, IoC, i, PHY_MARV_INT_STAT, &PhyInt);
1037 SkGmPhyRead(pAC, IoC, i, PHY_MARV_INT_MASK, &PhyIMsk);
1038
1039 if ((PhyInt & PhyIMsk) != 0) {
1040 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1041 ("Port %d Marv Int: 0x%04X Mask: 0x%04X\n",
1042 i, PhyInt, PhyIMsk));
1043 SkPhyIsrGmac(pAC, IoC, i, PhyInt);
1044 }
1045 break;
1046
1047 #ifdef OTHER_PHY
1048 case SK_PHY_LONE:
1049 SkXmPhyRead(pAC, IoC, i, PHY_LONE_INT_STAT, &PhyInt);
1050 SkXmPhyRead(pAC, IoC, i, PHY_LONE_INT_ENAB, &PhyIMsk);
1051
1052 if ((PhyInt & PhyIMsk) != 0) {
1053 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1054 ("Port %d Lone Int: %x Mask: %x\n",
1055 i, PhyInt, PhyIMsk));
1056 SkPhyIsrLone(pAC, IoC, i, PhyInt);
1057 }
1058 break;
1059 case SK_PHY_NAT:
1060 /* todo: National */
1061 break;
1062 #endif /* OTHER_PHY */
1063 }
1064 }
1065 }
1066
1067 /* I2C Ready interrupt */
1068 if ((Istatus & IS_I2C_READY) != 0) {
1069 SkI2cIsr(pAC, IoC);
1070 }
1071
1072 if ((Istatus & IS_LNK_SYNC_M1) != 0) {
1073 /*
1074 * We do NOT need the Link Sync interrupt, because it shows
1075 * us only a link going down.
1076 */
1077 /* clear interrupt */
1078 SK_OUT8(IoC, MR_ADDR(MAC_1, LNK_SYNC_CTRL), LED_CLR_IRQ);
1079 }
1080
1081 /* Check MAC after link sync counter */
1082 if ((Istatus & IS_MAC1) != 0) {
1083 /* IRQ from MAC 1 */
1084 SkMacIrq(pAC, IoC, MAC_1);
1085 }
1086
1087 if ((Istatus & IS_LNK_SYNC_M2) != 0) {
1088 /*
1089 * We do NOT need the Link Sync interrupt, because it shows
1090 * us only a link going down.
1091 */
1092 /* clear interrupt */
1093 SK_OUT8(IoC, MR_ADDR(MAC_2, LNK_SYNC_CTRL), LED_CLR_IRQ);
1094 }
1095
1096 /* Check MAC after link sync counter */
1097 if ((Istatus & IS_MAC2) != 0) {
1098 /* IRQ from MAC 2 */
1099 SkMacIrq(pAC, IoC, MAC_2);
1100 }
1101
1102 /* Timer interrupt (served last) */
1103 if ((Istatus & IS_TIMINT) != 0) {
1104 SkHwtIsr(pAC, IoC);
1105 }
1106 } /* SkGeSirqIsr */
1107
1108
1109 /******************************************************************************
1110 *
1111 * SkGePortCheckShorts() - Implementing XMAC Workaround Errata # 2
1112 *
1113 * return:
1114 * 0 o.k. nothing needed
1115 * 1 Restart needed on this port
1116 */
1117 static int SkGePortCheckShorts(
1118 SK_AC *pAC, /* Adapter Context */
1119 SK_IOC IoC, /* IO Context */
1120 int Port) /* Which port should be checked */
1121 {
1122 SK_U32 Shorts; /* Short Event Counter */
1123 SK_U32 CheckShorts; /* Check value for Short Event Counter */
1124 SK_U64 RxCts; /* Rx Counter (packets on network) */
1125 SK_U32 RxTmp; /* Rx temp. Counter */
1126 SK_U32 FcsErrCts; /* FCS Error Counter */
1127 SK_GEPORT *pPrt; /* GIni Port struct pointer */
1128 int Rtv; /* Return value */
1129 int i;
1130
1131 pPrt = &pAC->GIni.GP[Port];
1132
1133 /* Default: no action */
1134 Rtv = SK_HW_PS_NONE;
1135
1136 (void)SkXmUpdateStats(pAC, IoC, Port);
1137
1138 /* Extra precaution: check for short Event counter */
1139 (void)SkXmMacStatistic(pAC, IoC, Port, XM_RXE_SHT_ERR, &Shorts);
1140
1141 /*
1142 * Read Rx counter (packets seen on the network and not necessarily
1143 * really received.
1144 */
1145 RxCts = 0;
1146
1147 for (i = 0; i < sizeof(SkGeRxRegs)/sizeof(SkGeRxRegs[0]); i++) {
1148 (void)SkXmMacStatistic(pAC, IoC, Port, SkGeRxRegs[i], &RxTmp);
1149 RxCts += (SK_U64)RxTmp;
1150 }
1151
1152 /* On default: check shorts against zero */
1153 CheckShorts = 0;
1154
1155 /* Extra precaution on active links */
1156 if (pPrt->PHWLinkUp) {
1157 /* Reset Link Restart counter */
1158 pPrt->PLinkResCt = 0;
1159 pPrt->PAutoNegTOCt = 0;
1160
1161 /* If link is up check for 2 */
1162 CheckShorts = 2;
1163
1164 (void)SkXmMacStatistic(pAC, IoC, Port, XM_RXF_FCS_ERR, &FcsErrCts);
1165
1166 if (pPrt->PLinkModeConf == SK_LMODE_AUTOSENSE &&
1167 pPrt->PLipaAutoNeg == SK_LIPA_UNKNOWN &&
1168 (pPrt->PLinkMode == SK_LMODE_HALF ||
1169 pPrt->PLinkMode == SK_LMODE_FULL)) {
1170 /*
1171 * This is autosensing and we are in the fallback
1172 * manual full/half duplex mode.
1173 */
1174 if (RxCts == pPrt->PPrevRx) {
1175 /* Nothing received, restart link */
1176 pPrt->PPrevFcs = FcsErrCts;
1177 pPrt->PPrevShorts = Shorts;
1178
1179 return(SK_HW_PS_RESTART);
1180 }
1181 else {
1182 pPrt->PLipaAutoNeg = SK_LIPA_MANUAL;
1183 }
1184 }
1185
1186 if (((RxCts - pPrt->PPrevRx) > pPrt->PRxLim) ||
1187 (!(FcsErrCts - pPrt->PPrevFcs))) {
1188 /*
1189 * Note: The compare with zero above has to be done the way shown,
1190 * otherwise the Linux driver will have a problem.
1191 */
1192 /*
1193 * We received a bunch of frames or no CRC error occured on the
1194 * network -> ok.
1195 */
1196 pPrt->PPrevRx = RxCts;
1197 pPrt->PPrevFcs = FcsErrCts;
1198 pPrt->PPrevShorts = Shorts;
1199
1200 return(SK_HW_PS_NONE);
1201 }
1202
1203 pPrt->PPrevFcs = FcsErrCts;
1204 }
1205
1206
1207 if ((Shorts - pPrt->PPrevShorts) > CheckShorts) {
1208 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1209 ("Short Event Count Restart Port %d \n", Port));
1210 Rtv = SK_HW_PS_RESTART;
1211 }
1212
1213 pPrt->PPrevShorts = Shorts;
1214 pPrt->PPrevRx = RxCts;
1215
1216 return(Rtv);
1217 } /* SkGePortCheckShorts */
1218
1219
1220 /******************************************************************************
1221 *
1222 * SkGePortCheckUp() - Check if the link is up
1223 *
1224 * return:
1225 * 0 o.k. nothing needed
1226 * 1 Restart needed on this port
1227 * 2 Link came up
1228 */
1229 static int SkGePortCheckUp(
1230 SK_AC *pAC, /* Adapter Context */
1231 SK_IOC IoC, /* IO Context */
1232 int Port) /* Which port should be checked */
1233 {
1234 switch (pAC->GIni.GP[Port].PhyType) {
1235 case SK_PHY_XMAC:
1236 return(SkGePortCheckUpXmac(pAC, IoC, Port));
1237 case SK_PHY_BCOM:
1238 return(SkGePortCheckUpBcom(pAC, IoC, Port));
1239 case SK_PHY_MARV_COPPER:
1240 case SK_PHY_MARV_FIBER:
1241 return(SkGePortCheckUpGmac(pAC, IoC, Port));
1242 #ifdef OTHER_PHY
1243 case SK_PHY_LONE:
1244 return(SkGePortCheckUpLone(pAC, IoC, Port));
1245 case SK_PHY_NAT:
1246 return(SkGePortCheckUpNat(pAC, IoC, Port));
1247 #endif /* OTHER_PHY */
1248 }
1249 return(SK_HW_PS_NONE);
1250 } /* SkGePortCheckUp */
1251
1252
1253 /******************************************************************************
1254 *
1255 * SkGePortCheckUpXmac() - Implementing of the Workaround Errata # 2
1256 *
1257 * return:
1258 * 0 o.k. nothing needed
1259 * 1 Restart needed on this port
1260 * 2 Link came up
1261 */
1262 static int SkGePortCheckUpXmac(
1263 SK_AC *pAC, /* Adapter Context */
1264 SK_IOC IoC, /* IO Context */
1265 int Port) /* Which port should be checked */
1266 {
1267 SK_U32 Shorts; /* Short Event Counter */
1268 SK_GEPORT *pPrt; /* GIni Port struct pointer */
1269 int Done;
1270 SK_U32 GpReg; /* General Purpose register value */
1271 SK_U16 Isrc; /* Interrupt source register */
1272 SK_U16 IsrcSum; /* Interrupt source register sum */
1273 SK_U16 LpAb; /* Link Partner Ability */
1274 SK_U16 ResAb; /* Resolved Ability */
1275 SK_U16 ExtStat; /* Extended Status Register */
1276 SK_BOOL AutoNeg; /* Is Auto-negotiation used ? */
1277 SK_U8 NextMode; /* Next AutoSensing Mode */
1278
1279 pPrt = &pAC->GIni.GP[Port];
1280
1281 if (pPrt->PHWLinkUp) {
1282 if (pPrt->PhyType != SK_PHY_XMAC) {
1283 return(SK_HW_PS_NONE);
1284 }
1285 else {
1286 return(SkGePortCheckShorts(pAC, IoC, Port));
1287 }
1288 }
1289
1290 IsrcSum = pPrt->PIsave;
1291 pPrt->PIsave = 0;
1292
1293 /* Now wait for each port's link */
1294 if (pPrt->PLinkMode == SK_LMODE_HALF || pPrt->PLinkMode == SK_LMODE_FULL) {
1295 AutoNeg = SK_FALSE;
1296 }
1297 else {
1298 AutoNeg = SK_TRUE;
1299 }
1300
1301 if (pPrt->PLinkBroken) {
1302 /* Link was broken */
1303 XM_IN32(IoC, Port, XM_GP_PORT, &GpReg);
1304
1305 if ((GpReg & XM_GP_INP_ASS) == 0) {
1306 /* The Link is in sync */
1307 XM_IN16(IoC, Port, XM_ISRC, &Isrc);
1308 IsrcSum |= Isrc;
1309 SkXmAutoNegLipaXmac(pAC, IoC, Port, IsrcSum);
1310
1311 if ((Isrc & XM_IS_INP_ASS) == 0) {
1312 /* It has been in sync since last time */
1313 /* Restart the PORT */
1314 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1315 ("Link in sync Restart Port %d\n", Port));
1316
1317 (void)SkXmUpdateStats(pAC, IoC, Port);
1318
1319 /* We now need to reinitialize the PrevShorts counter */
1320 (void)SkXmMacStatistic(pAC, IoC, Port, XM_RXE_SHT_ERR, &Shorts);
1321 pPrt->PPrevShorts = Shorts;
1322
1323 pPrt->PLinkBroken = SK_FALSE;
1324
1325 /*
1326 * Link Restart Workaround:
1327 * it may be possible that the other Link side
1328 * restarts its link as well an we detect
1329 * another LinkBroken. To prevent this
1330 * happening we check for a maximum number
1331 * of consecutive restart. If those happens,
1332 * we do NOT restart the active link and
1333 * check whether the link is now o.k.
1334 */
1335 pPrt->PLinkResCt++;
1336
1337 pPrt->PAutoNegTimeOut = 0;
1338
1339 if (pPrt->PLinkResCt < SK_MAX_LRESTART) {
1340 return(SK_HW_PS_RESTART);
1341 }
1342
1343 pPrt->PLinkResCt = 0;
1344
1345 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1346 ("Do NOT restart on Port %d %x %x\n", Port, Isrc, IsrcSum));
1347 }
1348 else {
1349 pPrt->PIsave = (SK_U16)(IsrcSum & XM_IS_AND);
1350
1351 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1352 ("Save Sync/nosync Port %d %x %x\n", Port, Isrc, IsrcSum));
1353
1354 /* Do nothing more if link is broken */
1355 return(SK_HW_PS_NONE);
1356 }
1357 }
1358 else {
1359 /* Do nothing more if link is broken */
1360 return(SK_HW_PS_NONE);
1361 }
1362
1363 }
1364 else {
1365 /* Link was not broken, check if it is */
1366 XM_IN16(IoC, Port, XM_ISRC, &Isrc);
1367 IsrcSum |= Isrc;
1368 if ((Isrc & XM_IS_INP_ASS) != 0) {
1369 XM_IN16(IoC, Port, XM_ISRC, &Isrc);
1370 IsrcSum |= Isrc;
1371 if ((Isrc & XM_IS_INP_ASS) != 0) {
1372 XM_IN16(IoC, Port, XM_ISRC, &Isrc);
1373 IsrcSum |= Isrc;
1374 if ((Isrc & XM_IS_INP_ASS) != 0) {
1375 pPrt->PLinkBroken = SK_TRUE;
1376 /* Re-Init Link partner Autoneg flag */
1377 pPrt->PLipaAutoNeg = SK_LIPA_UNKNOWN;
1378 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1379 ("Link broken Port %d\n", Port));
1380
1381 /* Cable removed-> reinit sense mode */
1382 SkHWInitDefSense(pAC, IoC, Port);
1383
1384 return(SK_HW_PS_RESTART);
1385 }
1386 }
1387 }
1388 else {
1389 SkXmAutoNegLipaXmac(pAC, IoC, Port, Isrc);
1390 if (SkGePortCheckShorts(pAC, IoC, Port) == SK_HW_PS_RESTART) {
1391 return(SK_HW_PS_RESTART);
1392 }
1393 }
1394 }
1395
1396 /*
1397 * here we usually can check whether the link is in sync and
1398 * auto-negotiation is done.
1399 */
1400 XM_IN32(IoC, Port, XM_GP_PORT, &GpReg);
1401 XM_IN16(IoC, Port, XM_ISRC, &Isrc);
1402 IsrcSum |= Isrc;
1403
1404 SkXmAutoNegLipaXmac(pAC, IoC, Port, IsrcSum);
1405
1406 if ((GpReg & XM_GP_INP_ASS) != 0 || (IsrcSum & XM_IS_INP_ASS) != 0) {
1407 if ((GpReg & XM_GP_INP_ASS) == 0) {
1408 /* Save Auto-negotiation Done interrupt only if link is in sync */
1409 pPrt->PIsave = (SK_U16)(IsrcSum & XM_IS_AND);
1410 }
1411 #ifdef DEBUG
1412 if ((pPrt->PIsave & XM_IS_AND) != 0) {
1413 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1414 ("AutoNeg done rescheduled Port %d\n", Port));
1415 }
1416 #endif /* DEBUG */
1417 return(SK_HW_PS_NONE);
1418 }
1419
1420 if (AutoNeg) {
1421 if ((IsrcSum & XM_IS_AND) != 0) {
1422 SkHWLinkUp(pAC, IoC, Port);
1423 Done = SkMacAutoNegDone(pAC, IoC, Port);
1424 if (Done != SK_AND_OK) {
1425 /* Get PHY parameters, for debugging only */
1426 SkXmPhyRead(pAC, IoC, Port, PHY_XMAC_AUNE_LP, &LpAb);
1427 SkXmPhyRead(pAC, IoC, Port, PHY_XMAC_RES_ABI, &ResAb);
1428 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1429 ("AutoNeg FAIL Port %d (LpAb %x, ResAb %x)\n",
1430 Port, LpAb, ResAb));
1431
1432 /* Try next possible mode */
1433 NextMode = SkHWSenseGetNext(pAC, IoC, Port);
1434 SkHWLinkDown(pAC, IoC, Port);
1435 if (Done == SK_AND_DUP_CAP) {
1436 /* GoTo next mode */
1437 SkHWSenseSetNext(pAC, IoC, Port, NextMode);
1438 }
1439
1440 return(SK_HW_PS_RESTART);
1441 }
1442 /*
1443 * Dummy Read extended status to prevent extra link down/ups
1444 * (clear Page Received bit if set)
1445 */
1446 SkXmPhyRead(pAC, IoC, Port, PHY_XMAC_AUNE_EXP, &ExtStat);
1447 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1448 ("AutoNeg done Port %d\n", Port));
1449 return(SK_HW_PS_LINK);
1450 }
1451
1452 /* AutoNeg not done, but HW link is up. Check for timeouts */
1453 pPrt->PAutoNegTimeOut++;
1454 if (pPrt->PAutoNegTimeOut >= SK_AND_MAX_TO) {
1455 /* Increase the Timeout counter */
1456 pPrt->PAutoNegTOCt++;
1457
1458 /* Timeout occured */
1459 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1460 ("AutoNeg timeout Port %d\n", Port));
1461 if (pPrt->PLinkModeConf == SK_LMODE_AUTOSENSE &&
1462 pPrt->PLipaAutoNeg != SK_LIPA_AUTO) {
1463 /* Set Link manually up */
1464 SkHWSenseSetNext(pAC, IoC, Port, SK_LMODE_FULL);
1465 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1466 ("Set manual full duplex Port %d\n", Port));
1467 }
1468
1469 if (pPrt->PLinkModeConf == SK_LMODE_AUTOSENSE &&
1470 pPrt->PLipaAutoNeg == SK_LIPA_AUTO &&
1471 pPrt->PAutoNegTOCt >= SK_MAX_ANEG_TO) {
1472 /*
1473 * This is rather complicated.
1474 * we need to check here whether the LIPA_AUTO
1475 * we saw before is false alert. We saw at one
1476 * switch ( SR8800) that on boot time it sends
1477 * just one auto-neg packet and does no further
1478 * auto-negotiation.
1479 * Solution: we restart the autosensing after
1480 * a few timeouts.
1481 */
1482 pPrt->PAutoNegTOCt = 0;
1483 pPrt->PLipaAutoNeg = SK_LIPA_UNKNOWN;
1484 SkHWInitDefSense(pAC, IoC, Port);
1485 }
1486
1487 /* Do the restart */
1488 return(SK_HW_PS_RESTART);
1489 }
1490 }
1491 else {
1492 /* Link is up and we don't need more */
1493 #ifdef DEBUG
1494 if (pPrt->PLipaAutoNeg == SK_LIPA_AUTO) {
1495 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1496 ("ERROR: Lipa auto detected on port %d\n", Port));
1497 }
1498 #endif /* DEBUG */
1499 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1500 ("Link sync(GP), Port %d\n", Port));
1501 SkHWLinkUp(pAC, IoC, Port);
1502
1503 /*
1504 * Link sync (GP) and so assume a good connection. But if not received
1505 * a bunch of frames received in a time slot (maybe broken tx cable)
1506 * the port is restart.
1507 */
1508 return(SK_HW_PS_LINK);
1509 }
1510
1511 return(SK_HW_PS_NONE);
1512 } /* SkGePortCheckUpXmac */
1513
1514
1515 /******************************************************************************
1516 *
1517 * SkGePortCheckUpBcom() - Check if the link is up on Bcom PHY
1518 *
1519 * return:
1520 * 0 o.k. nothing needed
1521 * 1 Restart needed on this port
1522 * 2 Link came up
1523 */
1524 static int SkGePortCheckUpBcom(
1525 SK_AC *pAC, /* Adapter Context */
1526 SK_IOC IoC, /* IO Context */
1527 int Port) /* Which port should be checked */
1528 {
1529 SK_GEPORT *pPrt; /* GIni Port struct pointer */
1530 int Done;
1531 SK_U16 Isrc; /* Interrupt source register */
1532 SK_U16 PhyStat; /* Phy Status Register */
1533 SK_U16 ResAb; /* Master/Slave resolution */
1534 SK_U16 Ctrl; /* Broadcom control flags */
1535 #ifdef DEBUG
1536 SK_U16 LpAb;
1537 SK_U16 ExtStat;
1538 #endif /* DEBUG */
1539 SK_BOOL AutoNeg; /* Is Auto-negotiation used ? */
1540
1541 pPrt = &pAC->GIni.GP[Port];
1542
1543 /* Check for No HCD Link events (#10523) */
1544 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_STAT, &Isrc);
1545
1546 #ifdef xDEBUG
1547 if ((Isrc & ~(PHY_B_IS_HCT | PHY_B_IS_LCT) ==
1548 (PHY_B_IS_SCR_S_ER | PHY_B_IS_RRS_CHANGE | PHY_B_IS_LRS_CHANGE)) {
1549
1550 SK_U32 Stat1, Stat2, Stat3;
1551
1552 Stat1 = 0;
1553 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_MASK, &Stat1);
1554 CMSMPrintString(
1555 pAC->pConfigTable,
1556 MSG_TYPE_RUNTIME_INFO,
1557 "CheckUp1 - Stat: %x, Mask: %x",
1558 (void *)Isrc,
1559 (void *)Stat1);
1560
1561 Stat1 = 0;
1562 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_CTRL, &Stat1);
1563 Stat2 = 0;
1564 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_STAT, &Stat2);
1565 Stat1 = Stat1 << 16 | Stat2;
1566 Stat2 = 0;
1567 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_ADV, &Stat2);
1568 Stat3 = 0;
1569 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_LP, &Stat3);
1570 Stat2 = Stat2 << 16 | Stat3;
1571 CMSMPrintString(
1572 pAC->pConfigTable,
1573 MSG_TYPE_RUNTIME_INFO,
1574 "Ctrl/Stat: %x, AN Adv/LP: %x",
1575 (void *)Stat1,
1576 (void *)Stat2);
1577
1578 Stat1 = 0;
1579 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_EXP, &Stat1);
1580 Stat2 = 0;
1581 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_EXT_STAT, &Stat2);
1582 Stat1 = Stat1 << 16 | Stat2;
1583 Stat2 = 0;
1584 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_CTRL, &Stat2);
1585 Stat3 = 0;
1586 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_STAT, &Stat3);
1587 Stat2 = Stat2 << 16 | Stat3;
1588 CMSMPrintString(
1589 pAC->pConfigTable,
1590 MSG_TYPE_RUNTIME_INFO,
1591 "AN Exp/IEEE Ext: %x, 1000T Ctrl/Stat: %x",
1592 (void *)Stat1,
1593 (void *)Stat2);
1594
1595 Stat1 = 0;
1596 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_P_EXT_CTRL, &Stat1);
1597 Stat2 = 0;
1598 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_P_EXT_STAT, &Stat2);
1599 Stat1 = Stat1 << 16 | Stat2;
1600 Stat2 = 0;
1601 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUX_CTRL, &Stat2);
1602 Stat3 = 0;
1603 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUX_STAT, &Stat3);
1604 Stat2 = Stat2 << 16 | Stat3;
1605 CMSMPrintString(
1606 pAC->pConfigTable,
1607 MSG_TYPE_RUNTIME_INFO,
1608 "PHY Ext Ctrl/Stat: %x, Aux Ctrl/Stat: %x",
1609 (void *)Stat1,
1610 (void *)Stat2);
1611 }
1612 #endif /* DEBUG */
1613
1614 if ((Isrc & (PHY_B_IS_NO_HDCL /* | PHY_B_IS_NO_HDC */)) != 0) {
1615 /*
1616 * Workaround BCom Errata:
1617 * enable and disable loopback mode if "NO HCD" occurs.
1618 */
1619 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_CTRL, &Ctrl);
1620 SkXmPhyWrite(pAC, IoC, Port, PHY_BCOM_CTRL,
1621 (SK_U16)(Ctrl | PHY_CT_LOOP));
1622 SkXmPhyWrite(pAC, IoC, Port, PHY_BCOM_CTRL,
1623 (SK_U16)(Ctrl & ~PHY_CT_LOOP));
1624 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1625 ("No HCD Link event, Port %d\n", Port));
1626 #ifdef xDEBUG
1627 CMSMPrintString(
1628 pAC->pConfigTable,
1629 MSG_TYPE_RUNTIME_INFO,
1630 "No HCD link event, port %d.",
1631 (void *)Port,
1632 (void *)NULL);
1633 #endif /* DEBUG */
1634 }
1635
1636 /* Not obsolete: link status bit is latched to 0 and autoclearing! */
1637 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_STAT, &PhyStat);
1638
1639 if (pPrt->PHWLinkUp) {
1640 return(SK_HW_PS_NONE);
1641 }
1642
1643 #ifdef xDEBUG
1644 {
1645 SK_U32 Stat1, Stat2, Stat3;
1646
1647 Stat1 = 0;
1648 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_MASK, &Stat1);
1649 CMSMPrintString(
1650 pAC->pConfigTable,
1651 MSG_TYPE_RUNTIME_INFO,
1652 "CheckUp1a - Stat: %x, Mask: %x",
1653 (void *)Isrc,
1654 (void *)Stat1);
1655
1656 Stat1 = 0;
1657 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_CTRL, &Stat1);
1658 Stat2 = 0;
1659 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_STAT, &PhyStat);
1660 Stat1 = Stat1 << 16 | PhyStat;
1661 Stat2 = 0;
1662 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_ADV, &Stat2);
1663 Stat3 = 0;
1664 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_LP, &Stat3);
1665 Stat2 = Stat2 << 16 | Stat3;
1666 CMSMPrintString(
1667 pAC->pConfigTable,
1668 MSG_TYPE_RUNTIME_INFO,
1669 "Ctrl/Stat: %x, AN Adv/LP: %x",
1670 (void *)Stat1,
1671 (void *)Stat2);
1672
1673 Stat1 = 0;
1674 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_EXP, &Stat1);
1675 Stat2 = 0;
1676 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_EXT_STAT, &Stat2);
1677 Stat1 = Stat1 << 16 | Stat2;
1678 Stat2 = 0;
1679 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_CTRL, &Stat2);
1680 Stat3 = 0;
1681 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_STAT, &ResAb);
1682 Stat2 = Stat2 << 16 | ResAb;
1683 CMSMPrintString(
1684 pAC->pConfigTable,
1685 MSG_TYPE_RUNTIME_INFO,
1686 "AN Exp/IEEE Ext: %x, 1000T Ctrl/Stat: %x",
1687 (void *)Stat1,
1688 (void *)Stat2);
1689
1690 Stat1 = 0;
1691 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_P_EXT_CTRL, &Stat1);
1692 Stat2 = 0;
1693 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_P_EXT_STAT, &Stat2);
1694 Stat1 = Stat1 << 16 | Stat2;
1695 Stat2 = 0;
1696 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUX_CTRL, &Stat2);
1697 Stat3 = 0;
1698 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUX_STAT, &Stat3);
1699 Stat2 = Stat2 << 16 | Stat3;
1700 CMSMPrintString(
1701 pAC->pConfigTable,
1702 MSG_TYPE_RUNTIME_INFO,
1703 "PHY Ext Ctrl/Stat: %x, Aux Ctrl/Stat: %x",
1704 (void *)Stat1,
1705 (void *)Stat2);
1706 }
1707 #endif /* DEBUG */
1708
1709 /* Now wait for each port's link */
1710 if (pPrt->PLinkMode == SK_LMODE_HALF || pPrt->PLinkMode == SK_LMODE_FULL) {
1711 AutoNeg = SK_FALSE;
1712 }
1713 else {
1714 AutoNeg = SK_TRUE;
1715 }
1716
1717 /*
1718 * Here we usually can check whether the link is in sync and
1719 * auto-negotiation is done.
1720 */
1721
1722 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_STAT, &PhyStat);
1723
1724 SkMacAutoNegLipaPhy(pAC, IoC, Port, PhyStat);
1725
1726 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1727 ("AutoNeg: %d, PhyStat: 0x%04x\n", AutoNeg, PhyStat));
1728
1729 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_STAT, &ResAb);
1730
1731 if ((ResAb & PHY_B_1000S_MSF) != 0) {
1732 /* Error */
1733 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1734 ("Master/Slave Fault port %d\n", Port));
1735 pPrt->PAutoNegFail = SK_TRUE;
1736 pPrt->PMSStatus = SK_MS_STAT_FAULT;
1737
1738 return(SK_HW_PS_RESTART);
1739 }
1740
1741 if ((PhyStat & PHY_ST_LSYNC) == 0) {
1742 return(SK_HW_PS_NONE);
1743 }
1744
1745 pPrt->PMSStatus = ((ResAb & PHY_B_1000S_MSR) != 0) ?
1746 SK_MS_STAT_MASTER : SK_MS_STAT_SLAVE;
1747
1748 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1749 ("AutoNeg: %d, PhyStat: 0x%04x\n", AutoNeg, PhyStat));
1750
1751 if (AutoNeg) {
1752 if ((PhyStat & PHY_ST_AN_OVER) != 0) {
1753 SkHWLinkUp(pAC, IoC, Port);
1754 Done = SkMacAutoNegDone(pAC, IoC, Port);
1755 if (Done != SK_AND_OK) {
1756 #ifdef DEBUG
1757 /* Get PHY parameters, for debugging only */
1758 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_AUNE_LP, &LpAb);
1759 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_1000T_STAT, &ExtStat);
1760 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1761 ("AutoNeg FAIL Port %d (LpAb %x, 1000TStat %x)\n",
1762 Port, LpAb, ExtStat));
1763 #endif /* DEBUG */
1764 return(SK_HW_PS_RESTART);
1765 }
1766 else {
1767 #ifdef xDEBUG
1768 /* Dummy read ISR to prevent extra link downs/ups */
1769 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_STAT, &ExtStat);
1770
1771 if ((ExtStat & ~(PHY_B_IS_HCT | PHY_B_IS_LCT)) != 0) {
1772 CMSMPrintString(
1773 pAC->pConfigTable,
1774 MSG_TYPE_RUNTIME_INFO,
1775 "CheckUp2 - Stat: %x",
1776 (void *)ExtStat,
1777 (void *)NULL);
1778 }
1779 #endif /* DEBUG */
1780
1781 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1782 ("AutoNeg done Port %d\n", Port));
1783 return(SK_HW_PS_LINK);
1784 }
1785 }
1786 }
1787 else { /* !AutoNeg */
1788 /* Link is up and we don't need more. */
1789 #ifdef DEBUG
1790 if (pPrt->PLipaAutoNeg == SK_LIPA_AUTO) {
1791 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1792 ("ERROR: Lipa auto detected on port %d\n", Port));
1793 }
1794 #endif /* DEBUG */
1795
1796 #ifdef xDEBUG
1797 /* Dummy read ISR to prevent extra link downs/ups */
1798 SkXmPhyRead(pAC, IoC, Port, PHY_BCOM_INT_STAT, &ExtStat);
1799
1800 if ((ExtStat & ~(PHY_B_IS_HCT | PHY_B_IS_LCT)) != 0) {
1801 CMSMPrintString(
1802 pAC->pConfigTable,
1803 MSG_TYPE_RUNTIME_INFO,
1804 "CheckUp3 - Stat: %x",
1805 (void *)ExtStat,
1806 (void *)NULL);
1807 }
1808 #endif /* DEBUG */
1809
1810 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1811 ("Link sync(GP), Port %d\n", Port));
1812 SkHWLinkUp(pAC, IoC, Port);
1813 return(SK_HW_PS_LINK);
1814 }
1815
1816 return(SK_HW_PS_NONE);
1817 } /* SkGePortCheckUpBcom */
1818
1819
1820 /******************************************************************************
1821 *
1822 * SkGePortCheckUpGmac() - Check if the link is up on Marvell PHY
1823 *
1824 * return:
1825 * 0 o.k. nothing needed
1826 * 1 Restart needed on this port
1827 * 2 Link came up
1828 */
1829 static int SkGePortCheckUpGmac(
1830 SK_AC *pAC, /* Adapter Context */
1831 SK_IOC IoC, /* IO Context */
1832 int Port) /* Which port should be checked */
1833 {
1834 SK_GEPORT *pPrt; /* GIni Port struct pointer */
1835 int Done;
1836 SK_U16 Isrc; /* Interrupt source */
1837 SK_U16 PhyStat; /* Phy Status */
1838 SK_U16 PhySpecStat;/* Phy Specific Status */
1839 SK_U16 ResAb; /* Master/Slave resolution */
1840 SK_BOOL AutoNeg; /* Is Auto-negotiation used ? */
1841
1842 pPrt = &pAC->GIni.GP[Port];
1843
1844 /* Read PHY Interrupt Status */
1845 SkGmPhyRead(pAC, IoC, Port, PHY_MARV_INT_STAT, &Isrc);
1846
1847 if ((Isrc & PHY_M_IS_AN_COMPL) != 0) {
1848 /* TBD */
1849 }
1850
1851 if ((Isrc & PHY_M_IS_DOWNSH_DET) != 0) {
1852 /* TBD */
1853 }
1854
1855 if (pPrt->PHWLinkUp) {
1856 return(SK_HW_PS_NONE);
1857 }
1858
1859 /* Now wait for each port's link */
1860 if (pPrt->PLinkMode == SK_LMODE_HALF || pPrt->PLinkMode == SK_LMODE_FULL) {
1861 AutoNeg = SK_FALSE;
1862 }
1863 else {
1864 AutoNeg = SK_TRUE;
1865 }
1866
1867 /* Read PHY Status */
1868 SkGmPhyRead(pAC, IoC, Port, PHY_MARV_STAT, &PhyStat);
1869
1870 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1871 ("AutoNeg: %d, PhyStat: 0x%04x\n", AutoNeg, PhyStat));
1872
1873 SkMacAutoNegLipaPhy(pAC, IoC, Port, PhyStat);
1874
1875 SkGmPhyRead(pAC, IoC, Port, PHY_MARV_1000T_STAT, &ResAb);
1876
1877 if ((ResAb & PHY_B_1000S_MSF) != 0) {
1878 /* Error */
1879 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1880 ("Master/Slave Fault port %d\n", Port));
1881 pPrt->PAutoNegFail = SK_TRUE;
1882 pPrt->PMSStatus = SK_MS_STAT_FAULT;
1883
1884 return(SK_HW_PS_RESTART);
1885 }
1886
1887 /* Read PHY Specific Status */
1888 SkGmPhyRead(pAC, IoC, Port, PHY_MARV_PHY_STAT, &PhySpecStat);
1889
1890 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1891 ("AutoNeg: %d, PhySpecStat: 0x%04x\n", AutoNeg, PhySpecStat));
1892
1893 if ((PhySpecStat & PHY_M_PS_LINK_UP) == 0) {
1894 return(SK_HW_PS_NONE);
1895 }
1896
1897 pPrt->PMSStatus = ((ResAb & PHY_B_1000S_MSR) != 0) ?
1898 SK_MS_STAT_MASTER : SK_MS_STAT_SLAVE;
1899
1900 pPrt->PCableLen = (SK_U8)((PhySpecStat & PHY_M_PS_CABLE_MSK) >> 7);
1901
1902 if (AutoNeg) {
1903 /* Auto-Negotiation Over ? */
1904 if ((PhyStat & PHY_ST_AN_OVER) != 0) {
1905
1906 SkHWLinkUp(pAC, IoC, Port);
1907
1908 Done = SkMacAutoNegDone(pAC, IoC, Port);
1909
1910 if (Done != SK_AND_OK) {
1911 return(SK_HW_PS_RESTART);
1912 }
1913
1914 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1915 ("AutoNeg done Port %d\n", Port));
1916 return(SK_HW_PS_LINK);
1917 }
1918 }
1919 else { /* !AutoNeg */
1920 /* Link is up and we don't need more */
1921 #ifdef DEBUG
1922 if (pPrt->PLipaAutoNeg == SK_LIPA_AUTO) {
1923 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1924 ("ERROR: Lipa auto detected on port %d\n", Port));
1925 }
1926 #endif /* DEBUG */
1927
1928 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
1929 ("Link sync, Port %d\n", Port));
1930 SkHWLinkUp(pAC, IoC, Port);
1931
1932 return(SK_HW_PS_LINK);
1933 }
1934
1935 return(SK_HW_PS_NONE);
1936 } /* SkGePortCheckUpGmac */
1937
1938
1939 #ifdef OTHER_PHY
1940 /******************************************************************************
1941 *
1942 * SkGePortCheckUpLone() - Check if the link is up on Level One PHY
1943 *
1944 * return:
1945 * 0 o.k. nothing needed
1946 * 1 Restart needed on this port
1947 * 2 Link came up
1948 */
1949 static int SkGePortCheckUpLone(
1950 SK_AC *pAC, /* Adapter Context */
1951 SK_IOC IoC, /* IO Context */
1952 int Port) /* Which port should be checked */
1953 {
1954 SK_GEPORT *pPrt; /* GIni Port struct pointer */
1955 int Done;
1956 SK_U16 Isrc; /* Interrupt source register */
1957 SK_U16 LpAb; /* Link Partner Ability */
1958 SK_U16 ExtStat; /* Extended Status Register */
1959 SK_U16 PhyStat; /* Phy Status Register */
1960 SK_U16 StatSum;
1961 SK_BOOL AutoNeg; /* Is Auto-negotiation used ? */
1962 SK_U8 NextMode; /* Next AutoSensing Mode */
1963
1964 pPrt = &pAC->GIni.GP[Port];
1965
1966 if (pPrt->PHWLinkUp) {
1967 return(SK_HW_PS_NONE);
1968 }
1969
1970 StatSum = pPrt->PIsave;
1971 pPrt->PIsave = 0;
1972
1973 /* Now wait for each ports link */
1974 if (pPrt->PLinkMode == SK_LMODE_HALF || pPrt->PLinkMode == SK_LMODE_FULL) {
1975 AutoNeg = SK_FALSE;
1976 }
1977 else {
1978 AutoNeg = SK_TRUE;
1979 }
1980
1981 /*
1982 * here we usually can check whether the link is in sync and
1983 * auto-negotiation is done.
1984 */
1985 SkXmPhyRead(pAC, IoC, Port, PHY_LONE_STAT, &PhyStat);
1986 StatSum |= PhyStat;
1987
1988 SkMacAutoNegLipaPhy(pAC, IoC, Port, PhyStat);
1989
1990 if ((PhyStat & PHY_ST_LSYNC) == 0) {
1991 /* Save Auto-negotiation Done bit */
1992 pPrt->PIsave = (SK_U16)(StatSum & PHY_ST_AN_OVER);
1993 #ifdef DEBUG
1994 if ((pPrt->PIsave & PHY_ST_AN_OVER) != 0) {
1995 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
1996 ("AutoNeg done rescheduled Port %d\n", Port));
1997 }
1998 #endif /* DEBUG */
1999 return(SK_HW_PS_NONE);
2000 }
2001
2002 if (AutoNeg) {
2003 if ((StatSum & PHY_ST_AN_OVER) != 0) {
2004 SkHWLinkUp(pAC, IoC, Port);
2005 Done = SkMacAutoNegDone(pAC, IoC, Port);
2006 if (Done != SK_AND_OK) {
2007 /* Get PHY parameters, for debugging only */
2008 SkXmPhyRead(pAC, IoC, Port, PHY_LONE_AUNE_LP, &LpAb);
2009 SkXmPhyRead(pAC, IoC, Port, PHY_LONE_1000T_STAT, &ExtStat);
2010 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
2011 ("AutoNeg FAIL Port %d (LpAb %x, 1000TStat %x)\n",
2012 Port, LpAb, ExtStat));
2013
2014 /* Try next possible mode */
2015 NextMode = SkHWSenseGetNext(pAC, IoC, Port);
2016 SkHWLinkDown(pAC, IoC, Port);
2017 if (Done == SK_AND_DUP_CAP) {
2018 /* GoTo next mode */
2019 SkHWSenseSetNext(pAC, IoC, Port, NextMode);
2020 }
2021
2022 return(SK_HW_PS_RESTART);
2023
2024 }
2025 else {
2026 /*
2027 * Dummy Read interrupt status to prevent
2028 * extra link down/ups
2029 */
2030 SkXmPhyRead(pAC, IoC, Port, PHY_LONE_INT_STAT, &ExtStat);
2031 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
2032 ("AutoNeg done Port %d\n", Port));
2033 return(SK_HW_PS_LINK);
2034 }
2035 }
2036
2037 /* AutoNeg not done, but HW link is up. Check for timeouts */
2038 pPrt->PAutoNegTimeOut++;
2039 if (pPrt->PAutoNegTimeOut >= SK_AND_MAX_TO) {
2040 /* Timeout occured */
2041 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
2042 ("AutoNeg timeout Port %d\n", Port));
2043 if (pPrt->PLinkModeConf == SK_LMODE_AUTOSENSE &&
2044 pPrt->PLipaAutoNeg != SK_LIPA_AUTO) {
2045 /* Set Link manually up */
2046 SkHWSenseSetNext(pAC, IoC, Port, SK_LMODE_FULL);
2047 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
2048 ("Set manual full duplex Port %d\n", Port));
2049 }
2050
2051 /* Do the restart */
2052 return(SK_HW_PS_RESTART);
2053 }
2054 }
2055 else {
2056 /* Link is up and we don't need more */
2057 #ifdef DEBUG
2058 if (pPrt->PLipaAutoNeg == SK_LIPA_AUTO) {
2059 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_CTRL,
2060 ("ERROR: Lipa auto detected on port %d\n", Port));
2061 }
2062 #endif /* DEBUG */
2063
2064 /*
2065 * Dummy Read interrupt status to prevent
2066 * extra link down/ups
2067 */
2068 SkXmPhyRead(pAC, IoC, Port, PHY_LONE_INT_STAT, &ExtStat);
2069
2070 SK_DBG_MSG(pAC, SK_DBGMOD_HWM, SK_DBGCAT_IRQ,
2071 ("Link sync(GP), Port %d\n", Port));
2072 SkHWLinkUp(pAC, IoC, Port);
2073 return(SK_HW_PS_LINK);
2074 }
2075
2076 return(SK_HW_PS_NONE);
2077 } /* SkGePortCheckUpLone */
2078
2079
2080 /******************************************************************************
2081 *
2082 * SkGePortCheckUpNat() - Check if the link is up on National PHY
2083 *
2084 * return:
2085 * 0 o.k. nothing needed
2086 * 1 Restart needed on this port
2087 * 2 Link came up
2088 */
2089 static int SkGePortCheckUpNat(
2090 SK_AC *pAC, /* Adapter Context */
2091 SK_IOC IoC, /* IO Context */
2092 int Port) /* Which port should be checked */
2093 {
2094 /* todo: National */
2095 return(SK_HW_PS_NONE);
2096 } /* SkGePortCheckUpNat */
2097 #endif /* OTHER_PHY */
2098
2099
2100 /******************************************************************************
2101 *
2102 * SkGeSirqEvent() - Event Service Routine
2103 *
2104 * Description:
2105 *
2106 * Notes:
2107 */
2108 int SkGeSirqEvent(
2109 SK_AC *pAC, /* Adapter Context */
2110 SK_IOC IoC, /* Io Context */
2111 SK_U32 Event, /* Module specific Event */
2112 SK_EVPARA Para) /* Event specific Parameter */
2113 {
2114 SK_U64 Octets;
2115 SK_GEPORT *pPrt; /* GIni Port struct pointer */
2116 SK_U32 Port;
2117 SK_U32 Time;
2118 unsigned Len;
2119 int PortStat;
2120 SK_U8 Val8;
2121
2122 Port = Para.Para32[0];
2123 pPrt = &pAC->GIni.GP[Port];
2124
2125 switch (Event) {
2126 case SK_HWEV_WATIM:
2127 /* Check whether port came up */
2128 PortStat = SkGePortCheckUp(pAC, IoC, Port);
2129
2130 switch (PortStat) {
2131 case SK_HW_PS_RESTART:
2132 if (pPrt->PHWLinkUp) {
2133 /*
2134 * Set Link to down.
2135 */
2136 SkHWLinkDown(pAC, IoC, Port);
2137
2138 /*
2139 * Signal directly to RLMT to ensure correct
2140 * sequence of SWITCH and RESET event.
2141 */
2142 SkRlmtEvent(pAC, IoC, SK_RLMT_LINK_DOWN, Para);
2143 }
2144
2145 /* Restart needed */
2146 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_RESET, Para);
2147 break;
2148
2149 case SK_HW_PS_LINK:
2150 /* Signal to RLMT */
2151 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_UP, Para);
2152 break;
2153
2154 }
2155
2156 /* Start again the check Timer */
2157 if (pPrt->PHWLinkUp) {
2158 Time = SK_WA_ACT_TIME;
2159 }
2160 else {
2161 Time = SK_WA_INA_TIME;
2162 }
2163
2164 /* Todo: still needed for non-XMAC PHYs??? */
2165 /* Start workaround Errata #2 timer */
2166 SkTimerStart(pAC, IoC, &pPrt->PWaTimer, Time,
2167 SKGE_HWAC, SK_HWEV_WATIM, Para);
2168 break;
2169
2170 case SK_HWEV_PORT_START:
2171 if (pPrt->PHWLinkUp) {
2172 /*
2173 * Signal directly to RLMT to ensure correct
2174 * sequence of SWITCH and RESET event.
2175 */
2176 SkRlmtEvent(pAC, IoC, SK_RLMT_LINK_DOWN, Para);
2177 }
2178
2179 SkHWLinkDown(pAC, IoC, Port);
2180
2181 /* Schedule Port RESET */
2182 SkEventQueue(pAC, SKGE_DRV, SK_DRV_PORT_RESET, Para);
2183
2184 /* Start workaround Errata #2 timer */
2185 SkTimerStart(pAC, IoC, &pPrt->PWaTimer, SK_WA_INA_TIME,
2186 SKGE_HWAC, SK_HWEV_WATIM, Para);
2187 break;
2188
2189 case SK_HWEV_PORT_STOP:
2190 if (pPrt->PHWLinkUp) {
2191 /*
2192 * Signal directly to RLMT to ensure correct
2193 * sequence of SWITCH and RESET event.
2194 */
2195 SkRlmtEvent(pAC, IoC, SK_RLMT_LINK_DOWN, Para);
2196 }
2197
2198 /* Stop Workaround Timer */
2199 SkTimerStop(pAC, IoC, &pPrt->PWaTimer);
2200
2201 SkHWLinkDown(pAC, IoC, Port);
2202 break;
2203
2204 case SK_HWEV_UPDATE_STAT:
2205 /* We do NOT need to update any statistics */
2206 break;
2207
2208 case SK_HWEV_CLEAR_STAT:
2209 /* We do NOT need to clear any statistics */
2210 for (Port = 0; Port < (SK_U32)pAC->GIni.GIMacsFound; Port++) {
2211 pPrt->PPrevRx = 0;
2212 pPrt->PPrevFcs = 0;
2213 pPrt->PPrevShorts = 0;
2214 }
2215 break;
2216
2217 case SK_HWEV_SET_LMODE:
2218 Val8 = (SK_U8)Para.Para32[1];
2219 if (pPrt->PLinkModeConf != Val8) {
2220 /* Set New link mode */
2221 pPrt->PLinkModeConf = Val8;
2222
2223 /* Restart Port */
2224 SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_STOP, Para);
2225 SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_START, Para);
2226 }
2227 break;
2228
2229 case SK_HWEV_SET_FLOWMODE:
2230 Val8 = (SK_U8)Para.Para32[1];
2231 if (pPrt->PFlowCtrlMode != Val8) {
2232 /* Set New Flow Control mode */
2233 pPrt->PFlowCtrlMode = Val8;
2234
2235 /* Restart Port */
2236 SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_STOP, Para);
2237 SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_START, Para);
2238 }
2239 break;
2240
2241 case SK_HWEV_SET_ROLE:
2242 /* not possible for fiber */
2243 if (!pAC->GIni.GICopperType) {
2244 break;
2245 }
2246 Val8 = (SK_U8)Para.Para32[1];
2247 if (pPrt->PMSMode != Val8) {
2248 /* Set New link mode */
2249 pPrt->PMSMode = Val8;
2250
2251 /* Restart Port */
2252 SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_STOP, Para);
2253 SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_START, Para);
2254 }
2255 break;
2256
2257 case SK_HWEV_SET_SPEED:
2258 if (pPrt->PhyType != SK_PHY_MARV_COPPER) {
2259 break;
2260 }
2261 Val8 = (SK_U8)Para.Para32[1];
2262 if (pPrt->PLinkSpeed != Val8) {
2263 /* Set New Speed parameter */
2264 pPrt->PLinkSpeed = Val8;
2265
2266 /* Restart Port */
2267 SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_STOP, Para);
2268 SkEventQueue(pAC, SKGE_HWAC, SK_HWEV_PORT_START, Para);
2269 }
2270 break;
2271
2272 case SK_HWEV_HALFDUP_CHK:
2273 /*
2274 * half duplex hangup workaround.
2275 * See packet arbiter timeout interrupt for description
2276 */
2277 pPrt->HalfDupTimerActive = SK_FALSE;
2278 if (pPrt->PLinkModeStatus == SK_LMODE_STAT_HALF ||
2279 pPrt->PLinkModeStatus == SK_LMODE_STAT_AUTOHALF) {
2280
2281 Len = sizeof(SK_U64);
2282 SkPnmiGetVar(pAC, IoC, OID_SKGE_STAT_TX_OCTETS, (char *)&Octets,
2283 &Len, (SK_U32)SK_PNMI_PORT_PHYS2INST(pAC, Port),
2284 pAC->Rlmt.Port[Port].Net->NetNumber);
2285
2286 if (pPrt->LastOctets == Octets) {
2287 /* Tx hanging, a FIFO flush restarts it */
2288 SkMacFlushTxFifo(pAC, IoC, Port);
2289 }
2290 }
2291 break;
2292
2293 default:
2294 SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_SIRQ_E001, SKERR_SIRQ_E001MSG);
2295 break;
2296 }
2297
2298 return(0);
2299 } /* SkGeSirqEvent */
2300
2301
2302 /******************************************************************************
2303 *
2304 * SkPhyIsrBcom() - PHY interrupt service routine
2305 *
2306 * Description: handles all interrupts from BCom PHY
2307 *
2308 * Returns: N/A
2309 */
2310 static void SkPhyIsrBcom(
2311 SK_AC *pAC, /* Adapter Context */
2312 SK_IOC IoC, /* Io Context */
2313 int Port, /* Port Num = PHY Num */
2314 SK_U16 IStatus) /* Interrupt Status */
2315 {
2316 SK_GEPORT *pPrt; /* GIni Port struct pointer */
2317 SK_EVPARA Para;
2318
2319 pPrt = &pAC->GIni.GP[Port];
2320
2321 if ((IStatus & PHY_B_IS_PSE) != 0) {
2322 /* Incorrectable pair swap error */
2323 SK_ERR_LOG(pAC, SK_ERRCL_SW | SK_ERRCL_INIT, SKERR_SIRQ_E022,
2324 SKERR_SIRQ_E022MSG);
2325 }
2326
2327 if ((IStatus & (PHY_B_IS_AN_PR | PHY_B_IS_LST_CHANGE)) != 0) {
2328 Para.Para32[0] = (SK_U32)Port;
2329
2330 SkHWLinkDown(pAC, IoC, Port);
2331
2332 /* Signal to RLMT */
2333 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
2334
2335 /* Start workaround Errata #2 timer */
2336 SkTimerStart(pAC, IoC, &pPrt->PWaTimer, SK_WA_INA_TIME,
2337 SKGE_HWAC, SK_HWEV_WATIM, Para);
2338 }
2339
2340 } /* SkPhyIsrBcom */
2341
2342
2343 /******************************************************************************
2344 *
2345 * SkPhyIsrGmac() - PHY interrupt service routine
2346 *
2347 * Description: handles all interrupts from Marvell PHY
2348 *
2349 * Returns: N/A
2350 */
2351 static void SkPhyIsrGmac(
2352 SK_AC *pAC, /* Adapter Context */
2353 SK_IOC IoC, /* Io Context */
2354 int Port, /* Port Num = PHY Num */
2355 SK_U16 IStatus) /* Interrupt Status */
2356 {
2357 SK_GEPORT *pPrt; /* GIni Port struct pointer */
2358 SK_EVPARA Para;
2359
2360 pPrt = &pAC->GIni.GP[Port];
2361
2362 if ((IStatus & (PHY_M_IS_AN_PR | PHY_M_IS_LST_CHANGE)) != 0) {
2363 Para.Para32[0] = (SK_U32)Port;
2364
2365 SkHWLinkDown(pAC, IoC, Port);
2366
2367 /* Signal to RLMT */
2368 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
2369 }
2370
2371 if ((IStatus & PHY_M_IS_AN_ERROR) != 0) {
2372 /* Auto-Negotiation Error */
2373 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E023, SKERR_SIRQ_E023MSG);
2374 }
2375
2376 if ((IStatus & PHY_M_IS_LSP_CHANGE) != 0) {
2377 /* TBD */
2378 }
2379
2380 if ((IStatus & PHY_M_IS_FIFO_ERROR) != 0) {
2381 /* FIFO Overflow/Underrun Error */
2382 SK_ERR_LOG(pAC, SK_ERRCL_HW, SKERR_SIRQ_E024, SKERR_SIRQ_E024MSG);
2383 }
2384 } /* SkPhyIsrGmac */
2385
2386
2387 #ifdef OTHER_PHY
2388 /******************************************************************************
2389 *
2390 * SkPhyIsrLone() - PHY interrupt service routine
2391 *
2392 * Description: handles all interrupts from LONE PHY
2393 *
2394 * Returns: N/A
2395 */
2396 static void SkPhyIsrLone(
2397 SK_AC *pAC, /* Adapter Context */
2398 SK_IOC IoC, /* Io Context */
2399 int Port, /* Port Num = PHY Num */
2400 SK_U16 IStatus) /* Interrupt Status */
2401 {
2402 SK_EVPARA Para;
2403
2404 if (IStatus & (PHY_L_IS_DUP | PHY_L_IS_ISOL)) {
2405 SkHWLinkDown(pAC, IoC, Port);
2406
2407 /* Signal to RLMT */
2408 Para.Para32[0] = (SK_U32)Port;
2409 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_LINK_DOWN, Para);
2410 }
2411
2412 } /* SkPhyIsrLone */
2413 #endif /* OTHER_PHY */
2414
2415 #endif /* CONFIG_SK98 */
2416
2417 /* End of File */
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