?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Ok. I didn't make 2.4.0 in 2000. Tough. I tried, but we had some
[davej-history.git] / drivers / net / sk98lin / skge.c
blobe88ec69ae96f95de5bbfd17052182ba4250d5317
1 /******************************************************************************
2 *
3 * Name: skge.c
4 * Project: GEnesis, PCI Gigabit Ethernet Adapter
5 * Version: $Revision: 1.29 $
6 * Date: $Date: 2000/02/21 13:31:56 $
7 * Purpose: The main driver source module
8 *
9 ******************************************************************************/
10
11 /******************************************************************************
12 *
13 * (C)Copyright 1998,1999 SysKonnect,
14 * a business unit of Schneider & Koch & Co. Datensysteme GmbH.
15 *
16 * Driver for SysKonnect Gigabit Ethernet Server Adapters:
17 *
18 * SK-9841 (single link 1000Base-LX)
19 * SK-9842 (dual link 1000Base-LX)
20 * SK-9843 (single link 1000Base-SX)
21 * SK-9844 (dual link 1000Base-SX)
22 * SK-9821 (single link 1000Base-T)
23 * SK-9822 (dual link 1000Base-T)
24 *
25 * Created 10-Feb-1999, based on Linux' acenic.c, 3c59x.c and
26 * SysKonnects GEnesis Solaris driver
27 * Author: Christoph Goos (cgoos@syskonnect.de)
28 *
29 * Address all question to: linux@syskonnect.de
30 *
31 * The technical manual for the adapters is available from SysKonnect's
32 * web pages: www.syskonnect.com
33 * Goto "Support" and search Knowledge Base for "manual".
34 *
35 * This program is free software; you can redistribute it and/or modify
36 * it under the terms of the GNU General Public License as published by
37 * the Free Software Foundation; either version 2 of the License, or
38 * (at your option) any later version.
39 *
40 * The information in this file is provided "AS IS" without warranty.
41 *
42 ******************************************************************************/
43
44 /******************************************************************************
45 *
46 * History:
47 *
48 * $Log: skge.c,v $
49 * Kernel 2.4.x specific:
50 * Revision 1.xx 2000/09/12 13:31:56 cgoos
51 * Fixed missign "dev=NULL in skge_probe.
52 * Added counting for jumbo frames (corrects error statistic).
53 * Removed VLAN tag check (enables VLAN support).
54 *
55 * Kernel 2.2.x specific:
56 * Revision 1.29 2000/02/21 13:31:56 cgoos
57 * Fixed "unused" warning for UltraSPARC change.
58 *
59 * Partially kernel 2.2.x specific:
60 * Revision 1.28 2000/02/21 10:32:36 cgoos
61 * Added fixes for UltraSPARC.
62 * Now printing RlmtMode and PrefPort setting at startup.
63 * Changed XmitFrame return value.
64 * Fixed rx checksum calculation for BIG ENDIAN systems.
65 * Fixed rx jumbo frames counted as ierrors.
66 *
67 *
68 * Revision 1.27 1999/11/25 09:06:28 cgoos
69 * Changed base_addr to unsigned long.
70 *
71 * Revision 1.26 1999/11/22 13:29:16 cgoos
72 * Changed license header to GPL.
73 * Changes for inclusion in linux kernel (2.2.13).
74 * Removed 2.0.x defines.
75 * Changed SkGeProbe to skge_probe.
76 * Added checks in SkGeIoctl.
77 *
78 * Revision 1.25 1999/10/07 14:47:52 cgoos
79 * Changed 984x to 98xx.
80 *
81 * Revision 1.24 1999/09/30 07:21:01 cgoos
82 * Removed SK_RLMT_SLOW_LOOKAHEAD option.
83 * Giving spanning tree packets also to OS now.
84 *
85 * Revision 1.23 1999/09/29 07:36:50 cgoos
86 * Changed assignment for IsBc/IsMc.
87 *
88 * Revision 1.22 1999/09/28 12:57:09 cgoos
89 * Added CheckQueue also to Single-Port-ISR.
90 *
91 * Revision 1.21 1999/09/28 12:42:41 cgoos
92 * Changed parameter strings for RlmtMode.
93 *
94 * Revision 1.20 1999/09/28 12:37:57 cgoos
95 * Added CheckQueue for fast delivery of RLMT frames.
96 *
97 * Revision 1.19 1999/09/16 07:57:25 cgoos
98 * Copperfield changes.
99 *
100 * Revision 1.18 1999/09/03 13:06:30 cgoos
101 * Fixed RlmtMode=CheckSeg bug: wrong DEV_KFREE_SKB in RLMT_SEND caused
102 * double allocated skb's.
103 * FrameStat in ReceiveIrq was accessed via wrong Rxd.
104 * Queue size for async. standby Tx queue was zero.
105 * FillRxLimit of 0 could cause problems with ReQueue, changed to 1.
106 * Removed debug output of checksum statistic.
107 *
108 * Revision 1.17 1999/08/11 13:55:27 cgoos
109 * Transmit descriptor polling was not reenabled after SkGePortInit.
110 *
111 * Revision 1.16 1999/07/27 15:17:29 cgoos
112 * Added some "\n" in output strings (removed while debuging...).
113 *
114 * Revision 1.15 1999/07/23 12:09:30 cgoos
115 * Performance optimization, rx checksumming, large frame support.
116 *
117 * Revision 1.14 1999/07/14 11:26:27 cgoos
118 * Removed Link LED settings (now in RLMT).
119 * Added status output at NET UP.
120 * Fixed SMP problems with Tx and SWITCH running in parallel.
121 * Fixed return code problem at RLMT_SEND event.
122 *
123 * Revision 1.13 1999/04/07 10:11:42 cgoos
124 * Fixed Single Port problems.
125 * Fixed Multi-Adapter problems.
126 * Always display startup string.
127 *
128 * Revision 1.12 1999/03/29 12:26:37 cgoos
129 * Reversed locking to fine granularity.
130 * Fixed skb double alloc problem (caused by incorrect xmit return code).
131 * Enhanced function descriptions.
132 *
133 * Revision 1.11 1999/03/15 13:10:51 cgoos
134 * Changed device identifier in output string to ethX.
135 *
136 * Revision 1.10 1999/03/15 12:12:34 cgoos
137 * Changed copyright notice.
138 *
139 * Revision 1.9 1999/03/15 12:10:17 cgoos
140 * Changed locking to one driver lock.
141 * Added check of SK_AC-size (for consistency with library).
142 *
143 * Revision 1.8 1999/03/08 11:44:02 cgoos
144 * Fixed missing dev->tbusy in SkGeXmit.
145 * Changed large frame (jumbo) buffer number.
146 * Added copying of short frames.
147 *
148 * Revision 1.7 1999/03/04 13:26:57 cgoos
149 * Fixed spinlock calls for SMP.
150 *
151 * Revision 1.6 1999/03/02 09:53:51 cgoos
152 * Added descriptor revertion for big endian machines.
153 *
154 * Revision 1.5 1999/03/01 08:50:59 cgoos
155 * Fixed SkGeChangeMtu.
156 * Fixed pci config space accesses.
157 *
158 * Revision 1.4 1999/02/18 15:48:44 cgoos
159 * Corrected some printk's.
160 *
161 * Revision 1.3 1999/02/18 12:45:55 cgoos
162 * Changed SK_MAX_CARD_PARAM to default 16
163 *
164 * Revision 1.2 1999/02/18 10:55:32 cgoos
165 * Removed SkGeDrvTimeStamp function.
166 * Printing "ethX:" before adapter type at adapter init.
167 *
168 *
169 * 10-Feb-1999 cg Created, based on Linux' acenic.c, 3c59x.c and
170 * SysKonnects GEnesis Solaris driver
171 *
172 ******************************************************************************/
173
174 /******************************************************************************
175 *
176 * Possible compiler options (#define xxx / -Dxxx):
177 *
178 * debugging can be enable by changing SK_DEBUG_CHKMOD and
179 * SK_DEBUG_CHKCAT in makefile (described there).
180 *
181 ******************************************************************************/
182
183 /******************************************************************************
184 *
185 * Description:
186 *
187 * This is the main module of the Linux GE driver.
188 *
189 * All source files except skge.c, skdrv1st.h, skdrv2nd.h and sktypes.h
190 * are part of SysKonnect's COMMON MODULES for the SK-98xx adapters.
191 * Those are used for drivers on multiple OS', so some thing may seem
192 * unnecessary complicated on Linux. Please do not try to 'clean up'
193 * them without VERY good reasons, because this will make it more
194 * difficult to keep the Linux driver in synchronisation with the
195 * other versions.
196 *
197 * Include file hierarchy:
198 *
199 * <linux/module.h>
200 *
201 * "h/skdrv1st.h"
202 * <linux/version.h>
203 * <linux/types.h>
204 * <linux/kernel.h>
205 * <linux/string.h>
206 * <linux/errno.h>
207 * <linux/ioport.h>
208 * <linux/malloc.h>
209 * <linux/interrupt.h>
210 * <linux/pci.h>
211 * <asm/byteorder.h>
212 * <asm/bitops.h>
213 * <asm/io.h>
214 * <linux/netdevice.h>
215 * <linux/etherdevice.h>
216 * <linux/skbuff.h>
217 * those three depending on kernel version used:
218 * <linux/bios32.h>
219 * <linux/init.h>
220 * <asm/uaccess.h>
221 * <net/checksum.h>
222 *
223 * "h/skerror.h"
224 * "h/skdebug.h"
225 * "h/sktypes.h"
226 * "h/lm80.h"
227 * "h/xmac_ii.h"
228 *
229 * "h/skdrv2nd.h"
230 * "h/skqueue.h"
231 * "h/skgehwt.h"
232 * "h/sktimer.h"
233 * "h/ski2c.h"
234 * "h/skgepnmi.h"
235 * "h/skvpd.h"
236 * "h/skgehw.h"
237 * "h/skgeinit.h"
238 * "h/skaddr.h"
239 * "h/skgesirq.h"
240 * "h/skcsum.h"
241 * "h/skrlmt.h"
242 *
243 ******************************************************************************/
244
245 static const char SysKonnectFileId[] = "@(#)" __FILE__ " (C) SysKonnect.";
246 static const char SysKonnectBuildNumber[] =
247 "@(#)SK-BUILD: 3.05 (20000907) PL: 01";
248
249 #include <linux/module.h>
250 #include <linux/init.h>
251
252 #include "h/skdrv1st.h"
253 #include "h/skdrv2nd.h"
254
255 /* defines ******************************************************************/
256
257 #define BOOT_STRING "sk98lin: Network Device Driver v3.05\n" \
258 "Copyright (C) 1999-2000 SysKonnect"
259
260 #define VER_STRING "3.05"
261
262
263 /* for debuging on x86 only */
264 /* #define BREAKPOINT() asm(" int $3"); */
265
266 /* use of a transmit complete interrupt */
267 #define USE_TX_COMPLETE
268
269 /* use interrupt moderation (for tx complete only) */
270 // #define USE_INT_MOD
271 #define INTS_PER_SEC 1000
272
273 /*
274 * threshold for copying small receive frames
275 * set to 0 to avoid copying, set to 9001 to copy all frames
276 */
277 #define SK_COPY_THRESHOLD 200
278
279 /* number of adapters that can be configured via command line params */
280 #define SK_MAX_CARD_PARAM 16
281
282 /*
283 * use those defines for a compile-in version of the driver instead
284 * of command line parameters
285 */
286 // #define AUTO_NEG_A {"Sense", }
287 // #define AUTO_NEG_B {"Sense", }
288 // #define DUP_CAP_A {"Both", }
289 // #define DUP_CAP_B {"Both", }
290 // #define FLOW_CTRL_A {"SymOrRem", }
291 // #define FLOW_CTRL_B {"SymOrRem", }
292 // #define ROLE_A {"Auto", }
293 // #define ROLE_B {"Auto", }
294 // #define PREF_PORT {"A", }
295 // #define RLMT_MODE {"CheckLink", }
296
297
298 #define DEV_KFREE_SKB(skb) dev_kfree_skb(skb)
299 #define DEV_KFREE_SKB_IRQ(skb) dev_kfree_skb_irq(skb)
300 #define DEV_KFREE_SKB_ANY(skb) dev_kfree_skb_any(skb)
301
302 /* function prototypes ******************************************************/
303 static void FreeResources(struct net_device *dev);
304 int init_module(void);
305 void cleanup_module(void);
306 static int SkGeBoardInit(struct net_device *dev, SK_AC *pAC);
307 static SK_BOOL BoardAllocMem(SK_AC *pAC);
308 static void BoardFreeMem(SK_AC *pAC);
309 static void BoardInitMem(SK_AC *pAC);
310 static void SetupRing(SK_AC*, void*, uintptr_t, RXD**, RXD**, RXD**,
311 int*, SK_BOOL);
312
313 static void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs);
314 static void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs);
315 static int SkGeOpen(struct net_device *dev);
316 static int SkGeClose(struct net_device *dev);
317 static int SkGeXmit(struct sk_buff *skb, struct net_device *dev);
318 static int SkGeSetMacAddr(struct net_device *dev, void *p);
319 static void SkGeSetRxMode(struct net_device *dev);
320 static struct net_device_stats *SkGeStats(struct net_device *dev);
321 static int SkGeIoctl(struct net_device *dev, struct ifreq *rq, int cmd);
322 static void GetConfiguration(SK_AC*);
323 static void ProductStr(SK_AC*);
324 static int XmitFrame(SK_AC*, TX_PORT*, struct sk_buff*);
325 static void FreeTxDescriptors(SK_AC*pAC, TX_PORT*);
326 static void FillRxRing(SK_AC*, RX_PORT*);
327 static SK_BOOL FillRxDescriptor(SK_AC*, RX_PORT*);
328 static void ReceiveIrq(SK_AC*, RX_PORT*);
329 static void ClearAndStartRx(SK_AC*, int);
330 static void ClearTxIrq(SK_AC*, int, int);
331 static void ClearRxRing(SK_AC*, RX_PORT*);
332 static void ClearTxRing(SK_AC*, TX_PORT*);
333 static void SetQueueSizes(SK_AC *pAC);
334 static int SkGeChangeMtu(struct net_device *dev, int new_mtu);
335 static void PortReInitBmu(SK_AC*, int);
336 static int SkGeIocMib(SK_AC*, unsigned int, int);
337 #ifdef DEBUG
338 static void DumpMsg(struct sk_buff*, char*);
339 static void DumpData(char*, int);
340 static void DumpLong(char*, int);
341 #endif
342
343
344 /* global variables *********************************************************/
345 static const char *BootString = BOOT_STRING;
346 static struct net_device *root_dev = NULL;
347 static int probed __initdata = 0;
348
349 /* local variables **********************************************************/
350 static uintptr_t TxQueueAddr[SK_MAX_MACS][2] = {{0x680, 0x600},{0x780, 0x700}};
351 static uintptr_t RxQueueAddr[SK_MAX_MACS] = {0x400, 0x480};
352
353 /*****************************************************************************
354 *
355 * skge_probe - find all SK-98xx adapters
356 *
357 * Description:
358 * This function scans the PCI bus for SK-98xx adapters. Resources for
359 * each adapter are allocated and the adapter is brought into Init 1
360 * state.
361 *
362 * Returns:
363 * 0, if everything is ok
364 * !=0, on error
365 */
366 static int __init skge_probe (void)
367 {
368 int boards_found = 0;
369 int version_disp = 0;
370 SK_AC *pAC;
371 struct pci_dev *pdev = NULL;
372 unsigned long base_address;
373 struct net_device *dev = NULL;
374
375 if (probed)
376 return -ENODEV;
377 probed++;
378
379 /* display driver info */
380 if (!version_disp)
381 {
382 /* set display flag to TRUE so that */
383 /* we only display this string ONCE */
384 version_disp = 1;
385 printk("%s\n", BootString);
386 }
387
388 if (!pci_present()) /* is PCI support present? */
389 return -ENODEV;
390
391 while((pdev = pci_find_device(PCI_VENDOR_ID_SYSKONNECT,
392 PCI_DEVICE_ID_SYSKONNECT_GE, pdev)) != NULL) {
393 if (pci_enable_device(pdev))
394 continue;
395
396 dev = NULL;
397 dev = init_etherdev(dev, sizeof(SK_AC));
398
399 if (dev == NULL) {
400 printk(KERN_ERR "Unable to allocate etherdev "
401 "structure!\n");
402 break;
403 }
404
405 pAC = dev->priv;
406 pAC->PciDev = *pdev;
407 pAC->PciDevId = pdev->device;
408 pAC->dev = dev;
409 sprintf(pAC->Name, "SysKonnect SK-98xx");
410 pAC->CheckQueue = SK_FALSE;
411
412 dev->irq = pdev->irq;
413
414 dev->open = &SkGeOpen;
415 dev->stop = &SkGeClose;
416 dev->hard_start_xmit = &SkGeXmit;
417 dev->get_stats = &SkGeStats;
418 dev->set_multicast_list = &SkGeSetRxMode;
419 dev->set_mac_address = &SkGeSetMacAddr;
420 dev->do_ioctl = &SkGeIoctl;
421 dev->change_mtu = &SkGeChangeMtu;
422
423 /*
424 * Dummy value.
425 */
426 dev->base_addr = 42;
427
428 pci_set_master(pdev);
429
430 base_address = pci_resource_start (pdev, 0);
431
432 #ifdef SK_BIG_ENDIAN
433 /*
434 * On big endian machines, we use the adapter's aibility of
435 * reading the descriptors as big endian.
436 */
437 {
438 SK_U32 our2;
439 SkPciReadCfgDWord(pAC, PCI_OUR_REG_2, &our2);
440 our2 |= PCI_REV_DESC;
441 SkPciWriteCfgDWord(pAC, PCI_OUR_REG_2, our2);
442 }
443 #endif /* BIG ENDIAN */
444
445 /*
446 * Remap the regs into kernel space.
447 */
448
449
450 pAC->IoBase = (char*)ioremap(base_address, 0x4000);
451 if (!pAC->IoBase){
452 printk(KERN_ERR "%s: Unable to map I/O register, "
453 "SK 98xx No. %i will be disabled.\n",
454 dev->name, boards_found);
455 break;
456 }
457 pAC->Index = boards_found;
458
459 if (SkGeBoardInit(dev, pAC)) {
460 FreeResources(dev);
461 continue;
462 }
463
464 memcpy((caddr_t) &dev->dev_addr,
465 (caddr_t) &pAC->Addr.CurrentMacAddress, 6);
466
467 boards_found++;
468
469 /*
470 * This is bollocks, but we need to tell the net-init
471 * code that it shall go for the next device.
472 */
473 #ifndef MODULE
474 dev->base_addr = 0;
475 #endif
476 }
477
478 /*
479 * If we're at this point we're going through skge_probe() for
480 * the first time. Return success (0) if we've initialized 1
481 * or more boards. Otherwise, return failure (-ENODEV).
482 */
483
484 return boards_found;
485 } /* skge_probe */
486
487
488 /*****************************************************************************
489 *
490 * FreeResources - release resources allocated for adapter
491 *
492 * Description:
493 * This function releases the IRQ, unmaps the IO and
494 * frees the desriptor ring.
495 *
496 * Returns: N/A
497 *
498 */
499 static void FreeResources(struct net_device *dev)
500 {
501 SK_U32 AllocFlag;
502 SK_AC *pAC;
503
504 if (dev->priv) {
505 pAC = (SK_AC*) dev->priv;
506 AllocFlag = pAC->AllocFlag;
507 if (AllocFlag & SK_ALLOC_IRQ) {
508 free_irq(dev->irq, dev);
509 }
510 if (pAC->IoBase) {
511 iounmap(pAC->IoBase);
512 }
513 if (pAC->pDescrMem) {
514 BoardFreeMem(pAC);
515 }
516 }
517
518 } /* FreeResources */
519
520
521 MODULE_AUTHOR("Christoph Goos <cgoos@syskonnect.de>");
522 MODULE_DESCRIPTION("SysKonnect SK-NET Gigabit Ethernet SK-98xx driver");
523 MODULE_PARM(AutoNeg_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
524 MODULE_PARM(AutoNeg_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
525 MODULE_PARM(DupCap_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
526 MODULE_PARM(DupCap_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
527 MODULE_PARM(FlowCtrl_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
528 MODULE_PARM(FlowCtrl_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
529 MODULE_PARM(Role_A, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
530 MODULE_PARM(Role_B, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
531 MODULE_PARM(PrefPort, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
532 MODULE_PARM(RlmtMode, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "s");
533 /* not used, just there because every driver should have them: */
534 MODULE_PARM(options, "1-" __MODULE_STRING(SK_MAX_CARD_PARAM) "i");
535 MODULE_PARM(debug, "i");
536
537
538 #ifdef AUTO_NEG_A
539 static char *AutoNeg_A[SK_MAX_CARD_PARAM] = AUTO_NEG_A;
540 #else
541 static char *AutoNeg_A[SK_MAX_CARD_PARAM] = {"", };
542 #endif
543
544 #ifdef DUP_CAP_A
545 static char *DupCap_A[SK_MAX_CARD_PARAM] = DUP_CAP_A;
546 #else
547 static char *DupCap_A[SK_MAX_CARD_PARAM] = {"", };
548 #endif
549
550 #ifdef FLOW_CTRL_A
551 static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = FLOW_CTRL_A;
552 #else
553 static char *FlowCtrl_A[SK_MAX_CARD_PARAM] = {"", };
554 #endif
555
556 #ifdef ROLE_A
557 static char *Role_A[SK_MAX_CARD_PARAM] = ROLE_A;
558 #else
559 static char *Role_A[SK_MAX_CARD_PARAM] = {"", };
560 #endif
561
562 #ifdef AUTO_NEG_B
563 static char *AutoNeg_B[SK_MAX_CARD_PARAM] = AUTO_NEG_B;
564 #else
565 static char *AutoNeg_B[SK_MAX_CARD_PARAM] = {"", };
566 #endif
567
568 #ifdef DUP_CAP_B
569 static char *DupCap_B[SK_MAX_CARD_PARAM] = DUP_CAP_B;
570 #else
571 static char *DupCap_B[SK_MAX_CARD_PARAM] = {"", };
572 #endif
573
574 #ifdef FLOW_CTRL_B
575 static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = FLOW_CTRL_B;
576 #else
577 static char *FlowCtrl_B[SK_MAX_CARD_PARAM] = {"", };
578 #endif
579
580 #ifdef ROLE_B
581 static char *Role_B[SK_MAX_CARD_PARAM] = ROLE_B;
582 #else
583 static char *Role_B[SK_MAX_CARD_PARAM] = {"", };
584 #endif
585
586 #ifdef PREF_PORT
587 static char *PrefPort[SK_MAX_CARD_PARAM] = PREF_PORT;
588 #else
589 static char *PrefPort[SK_MAX_CARD_PARAM] = {"", };
590 #endif
591
592 #ifdef RLMT_MODE
593 static char *RlmtMode[SK_MAX_CARD_PARAM] = RLMT_MODE;
594 #else
595 static char *RlmtMode[SK_MAX_CARD_PARAM] = {"", };
596 #endif
597
598
599 static int debug = 0; /* not used */
600 static int options[SK_MAX_CARD_PARAM] = {0, }; /* not used */
601
602
603 /*****************************************************************************
604 *
605 * skge_init_module - module initialization function
606 *
607 * Description:
608 * Very simple, only call skge_probe and return approriate result.
609 *
610 * Returns:
611 * 0, if everything is ok
612 * !=0, on error
613 */
614 static int __init skge_init_module(void)
615 {
616 int cards;
617
618 root_dev = NULL;
619
620 /* just to avoid warnings ... */
621 debug = 0;
622 options[0] = 0;
623
624 cards = skge_probe();
625 if (cards == 0) {
626 printk("No adapter found\n");
627 }
628 return cards ? 0 : -ENODEV;
629 } /* skge_init_module */
630
631
632 /*****************************************************************************
633 *
634 * skge_cleanup_module - module unload function
635 *
636 * Description:
637 * Disable adapter if it is still running, free resources,
638 * free device struct.
639 *
640 * Returns: N/A
641 */
642 static void __exit skge_cleanup_module(void)
643 {
644 SK_AC *pAC;
645 struct net_device *next;
646 unsigned long Flags;
647 SK_EVPARA EvPara;
648
649 while (root_dev) {
650 pAC = (SK_AC*)root_dev->priv;
651 next = pAC->Next;
652
653 netif_stop_queue(root_dev);
654 SkGeYellowLED(pAC, pAC->IoBase, 0);
655
656 if(pAC->BoardLevel == 2) {
657 /* board is still alive */
658 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
659 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
660 SkEventDispatcher(pAC, pAC->IoBase);
661 /* disable interrupts */
662 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
663 SkGeDeInit(pAC, pAC->IoBase);
664 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
665 pAC->BoardLevel = 0;
666 /* We do NOT check here, if IRQ was pending, of course*/
667 }
668
669 if(pAC->BoardLevel == 1) {
670 /* board is still alive */
671 SkGeDeInit(pAC, pAC->IoBase);
672 pAC->BoardLevel = 0;
673 }
674
675 FreeResources(root_dev);
676
677 root_dev->get_stats = NULL;
678 /*
679 * otherwise unregister_netdev calls get_stats with
680 * invalid IO ... :-(
681 */
682 unregister_netdev(root_dev);
683 kfree(root_dev);
684
685 root_dev = next;
686 }
687 } /* skge_cleanup_module */
688
689 module_init(skge_init_module);
690 module_exit(skge_cleanup_module);
691
692 /*****************************************************************************
693 *
694 * SkGeBoardInit - do level 0 and 1 initialization
695 *
696 * Description:
697 * This function prepares the board hardware for running. The desriptor
698 * ring is set up, the IRQ is allocated and the configuration settings
699 * are examined.
700 *
701 * Returns:
702 * 0, if everything is ok
703 * !=0, on error
704 */
705 static int __init SkGeBoardInit(struct net_device *dev, SK_AC *pAC)
706 {
707 short i;
708 unsigned long Flags;
709 char *DescrString = "sk98lin: Driver for Linux"; /* this is given to PNMI */
710 char *VerStr = VER_STRING;
711 int Ret; /* return code of request_irq */
712
713 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
714 ("IoBase: %08lX\n", (unsigned long)pAC->IoBase));
715 for (i=0; i<SK_MAX_MACS; i++) {
716 pAC->TxPort[i][0].HwAddr = pAC->IoBase + TxQueueAddr[i][0];
717 pAC->TxPort[i][0].PortIndex = i;
718 pAC->RxPort[i].HwAddr = pAC->IoBase + RxQueueAddr[i];
719 pAC->RxPort[i].PortIndex = i;
720 }
721
722 /* Initialize the mutexes */
723
724 for (i=0; i<SK_MAX_MACS; i++) {
725 spin_lock_init(&pAC->TxPort[i][0].TxDesRingLock);
726 spin_lock_init(&pAC->RxPort[i].RxDesRingLock);
727 }
728 spin_lock_init(&pAC->SlowPathLock);
729
730 /* level 0 init common modules here */
731
732 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
733 /* Does a RESET on board ...*/
734 if (SkGeInit(pAC, pAC->IoBase, 0) != 0) {
735 printk("HWInit (0) failed.\n");
736 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
737 return(-EAGAIN);
738 }
739 SkI2cInit( pAC, pAC->IoBase, 0);
740 SkEventInit(pAC, pAC->IoBase, 0);
741 SkPnmiInit( pAC, pAC->IoBase, 0);
742 SkAddrInit( pAC, pAC->IoBase, 0);
743 SkRlmtInit( pAC, pAC->IoBase, 0);
744 SkTimerInit(pAC, pAC->IoBase, 0);
745
746 pAC->BoardLevel = 0;
747 pAC->RxBufSize = ETH_BUF_SIZE;
748
749 SK_PNMI_SET_DRIVER_DESCR(pAC, DescrString);
750 SK_PNMI_SET_DRIVER_VER(pAC, VerStr);
751
752 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
753
754 GetConfiguration(pAC);
755
756 /* level 1 init common modules here (HW init) */
757 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
758 if (SkGeInit(pAC, pAC->IoBase, 1) != 0) {
759 printk("HWInit (1) failed.\n");
760 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
761 return(-EAGAIN);
762 }
763 SkI2cInit( pAC, pAC->IoBase, 1);
764 SkEventInit(pAC, pAC->IoBase, 1);
765 SkPnmiInit( pAC, pAC->IoBase, 1);
766 SkAddrInit( pAC, pAC->IoBase, 1);
767 SkRlmtInit( pAC, pAC->IoBase, 1);
768 SkTimerInit(pAC, pAC->IoBase, 1);
769
770 pAC->BoardLevel = 1;
771 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
772
773 if (pAC->GIni.GIMacsFound == 2) {
774 Ret = request_irq(dev->irq, SkGeIsr, SA_SHIRQ, pAC->Name, dev);
775 } else if (pAC->GIni.GIMacsFound == 1) {
776 Ret = request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ,
777 pAC->Name, dev);
778 } else {
779 printk(KERN_WARNING "%s: illegal number of ports: %d\n",
780 dev->name, pAC->GIni.GIMacsFound);
781 return -EAGAIN;
782 }
783 if (Ret) {
784 printk(KERN_WARNING "%s: Requested IRQ %d is busy\n",
785 dev->name, dev->irq);
786 return -EAGAIN;
787 }
788 pAC->AllocFlag |= SK_ALLOC_IRQ;
789
790 /* Alloc memory for this board (Mem for RxD/TxD) : */
791 if(!BoardAllocMem(pAC)) {
792 printk("No memory for descriptor rings\n");
793 return(-EAGAIN);
794 }
795
796 SkCsSetReceiveFlags(pAC,
797 SKCS_PROTO_IP | SKCS_PROTO_TCP | SKCS_PROTO_UDP,
798 &pAC->CsOfs1, &pAC->CsOfs2);
799 pAC->CsOfs = (pAC->CsOfs2 << 16) | pAC->CsOfs1;
800
801 BoardInitMem(pAC);
802
803 SetQueueSizes(pAC);
804
805 /* Print adapter specific string from vpd */
806 ProductStr(pAC);
807 printk("%s: %s\n", dev->name, pAC->DeviceStr);
808
809 /* Print configuration settings */
810 printk(" PrefPort:%c RlmtMode:%s\n",
811 'A' + pAC->Rlmt.PrefPort,
812 (pAC->RlmtMode==0) ? "ChkLink" :
813 ((pAC->RlmtMode==1) ? "ChkLink" :
814 ((pAC->RlmtMode==3) ? "ChkOth" :
815 ((pAC->RlmtMode==7) ? "ChkSeg" : "Error"))));
816
817 SkGeYellowLED(pAC, pAC->IoBase, 1);
818
819 /*
820 * Register the device here
821 */
822 pAC->Next = root_dev;
823 root_dev = dev;
824
825 return (0);
826 } /* SkGeBoardInit */
827
828
829 /*****************************************************************************
830 *
831 * BoardAllocMem - allocate the memory for the descriptor rings
832 *
833 * Description:
834 * This function allocates the memory for all descriptor rings.
835 * Each ring is aligned for the desriptor alignment and no ring
836 * has a 4 GByte boundary in it (because the upper 32 bit must
837 * be constant for all descriptiors in one rings).
838 *
839 * Returns:
840 * SK_TRUE, if all memory could be allocated
841 * SK_FALSE, if not
842 */
843 static SK_BOOL BoardAllocMem(
844 SK_AC *pAC)
845 {
846 caddr_t pDescrMem; /* pointer to descriptor memory area */
847 size_t AllocLength; /* length of complete descriptor area */
848 int i; /* loop counter */
849 unsigned long BusAddr;
850
851
852 /* rings plus one for alignment (do not cross 4 GB boundary) */
853 /* RX_RING_SIZE is assumed bigger than TX_RING_SIZE */
854 #if (BITS_PER_LONG == 32)
855 AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
856 #else
857 AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
858 + RX_RING_SIZE + 8;
859 #endif
860 pDescrMem = pci_alloc_consistent(&pAC->PciDev, AllocLength,
861 &pAC->pDescrMemDMA);
862 if (pDescrMem == NULL) {
863 return (SK_FALSE);
864 }
865 pAC->pDescrMem = pDescrMem;
866
867 /* Descriptors need 8 byte alignment, and this is ensured
868 * by pci_alloc_consistent.
869 */
870 BusAddr = (unsigned long) pAC->pDescrMemDMA;
871 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
872 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
873 ("TX%d/A: pDescrMem: %lX, PhysDescrMem: %lX\n",
874 i, (unsigned long) pDescrMem,
875 BusAddr));
876 pAC->TxPort[i][0].pTxDescrRing = pDescrMem;
877 pAC->TxPort[i][0].VTxDescrRing = BusAddr;
878 pDescrMem += TX_RING_SIZE;
879 BusAddr += TX_RING_SIZE;
880
881 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
882 ("RX%d: pDescrMem: %lX, PhysDescrMem: %lX\n",
883 i, (unsigned long) pDescrMem,
884 (unsigned long)BusAddr));
885 pAC->RxPort[i].pRxDescrRing = pDescrMem;
886 pAC->RxPort[i].VRxDescrRing = BusAddr;
887 pDescrMem += RX_RING_SIZE;
888 BusAddr += RX_RING_SIZE;
889 } /* for */
890
891 return (SK_TRUE);
892 } /* BoardAllocMem */
893
894
895 /****************************************************************************
896 *
897 * BoardFreeMem - reverse of BoardAllocMem
898 *
899 * Description:
900 * Free all memory allocated in BoardAllocMem: adapter context,
901 * descriptor rings, locks.
902 *
903 * Returns: N/A
904 */
905 static void BoardFreeMem(
906 SK_AC *pAC)
907 {
908 size_t AllocLength; /* length of complete descriptor area */
909
910 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
911 ("BoardFreeMem\n"));
912 #if (BITS_PER_LONG == 32)
913 AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound + 8;
914 #else
915 AllocLength = (RX_RING_SIZE + TX_RING_SIZE) * pAC->GIni.GIMacsFound
916 + RX_RING_SIZE + 8;
917 #endif
918 pci_free_consistent(&pAC->PciDev, AllocLength,
919 pAC->pDescrMem, pAC->pDescrMemDMA);
920 pAC->pDescrMem = NULL;
921 } /* BoardFreeMem */
922
923
924 /*****************************************************************************
925 *
926 * BoardInitMem - initiate the descriptor rings
927 *
928 * Description:
929 * This function sets the descriptor rings up in memory.
930 * The adapter is initialized with the descriptor start addresses.
931 *
932 * Returns: N/A
933 */
934 static void BoardInitMem(
935 SK_AC *pAC) /* pointer to adapter context */
936 {
937 int i; /* loop counter */
938 int RxDescrSize; /* the size of a rx descriptor rounded up to alignment*/
939 int TxDescrSize; /* the size of a tx descriptor rounded up to alignment*/
940
941 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
942 ("BoardInitMem\n"));
943
944 RxDescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
945 pAC->RxDescrPerRing = RX_RING_SIZE / RxDescrSize;
946 TxDescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) * DESCR_ALIGN;
947 pAC->TxDescrPerRing = TX_RING_SIZE / RxDescrSize;
948
949 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
950 SetupRing(
951 pAC,
952 pAC->TxPort[i][0].pTxDescrRing,
953 pAC->TxPort[i][0].VTxDescrRing,
954 (RXD**)&pAC->TxPort[i][0].pTxdRingHead,
955 (RXD**)&pAC->TxPort[i][0].pTxdRingTail,
956 (RXD**)&pAC->TxPort[i][0].pTxdRingPrev,
957 &pAC->TxPort[i][0].TxdRingFree,
958 SK_TRUE);
959 SetupRing(
960 pAC,
961 pAC->RxPort[i].pRxDescrRing,
962 pAC->RxPort[i].VRxDescrRing,
963 &pAC->RxPort[i].pRxdRingHead,
964 &pAC->RxPort[i].pRxdRingTail,
965 &pAC->RxPort[i].pRxdRingPrev,
966 &pAC->RxPort[i].RxdRingFree,
967 SK_FALSE);
968 }
969 } /* BoardInitMem */
970
971
972 /*****************************************************************************
973 *
974 * SetupRing - create one descriptor ring
975 *
976 * Description:
977 * This function creates one descriptor ring in the given memory area.
978 * The head, tail and number of free descriptors in the ring are set.
979 *
980 * Returns:
981 * none
982 */
983 static void SetupRing(
984 SK_AC *pAC,
985 void *pMemArea, /* a pointer to the memory area for the ring */
986 uintptr_t VMemArea, /* the virtual bus address of the memory area */
987 RXD **ppRingHead, /* address where the head should be written */
988 RXD **ppRingTail, /* address where the tail should be written */
989 RXD **ppRingPrev, /* address where the tail should be written */
990 int *pRingFree, /* address where the # of free descr. goes */
991 SK_BOOL IsTx) /* flag: is this a tx ring */
992 {
993 int i; /* loop counter */
994 int DescrSize; /* the size of a descriptor rounded up to alignment*/
995 int DescrNum; /* number of descriptors per ring */
996 RXD *pDescr; /* pointer to a descriptor (receive or transmit) */
997 RXD *pNextDescr; /* pointer to the next descriptor */
998 RXD *pPrevDescr; /* pointer to the previous descriptor */
999 uintptr_t VNextDescr; /* the virtual bus address of the next descriptor */
1000
1001 if (IsTx == SK_TRUE) {
1002 DescrSize = (((sizeof(TXD) - 1) / DESCR_ALIGN) + 1) *
1003 DESCR_ALIGN;
1004 DescrNum = TX_RING_SIZE / DescrSize;
1005 }
1006 else {
1007 DescrSize = (((sizeof(RXD) - 1) / DESCR_ALIGN) + 1) *
1008 DESCR_ALIGN;
1009 DescrNum = RX_RING_SIZE / DescrSize;
1010 }
1011
1012 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
1013 ("Descriptor size: %d Descriptor Number: %d\n",
1014 DescrSize,DescrNum));
1015
1016 pDescr = (RXD*) pMemArea;
1017 pPrevDescr = NULL;
1018 pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
1019 VNextDescr = VMemArea + DescrSize;
1020 for(i=0; i<DescrNum; i++) {
1021 /* set the pointers right */
1022 pDescr->VNextRxd = VNextDescr & 0xffffffffULL;
1023 pDescr->pNextRxd = pNextDescr;
1024 pDescr->TcpSumStarts = pAC->CsOfs;
1025 /* advance on step */
1026 pPrevDescr = pDescr;
1027 pDescr = pNextDescr;
1028 pNextDescr = (RXD*) (((char*)pDescr) + DescrSize);
1029 VNextDescr += DescrSize;
1030 }
1031 pPrevDescr->pNextRxd = (RXD*) pMemArea;
1032 pPrevDescr->VNextRxd = VMemArea;
1033 pDescr = (RXD*) pMemArea;
1034 *ppRingHead = (RXD*) pMemArea;
1035 *ppRingTail = *ppRingHead;
1036 *ppRingPrev = pPrevDescr;
1037 *pRingFree = DescrNum;
1038 } /* SetupRing */
1039
1040
1041 /*****************************************************************************
1042 *
1043 * PortReInitBmu - re-initiate the descriptor rings for one port
1044 *
1045 * Description:
1046 * This function reinitializes the descriptor rings of one port
1047 * in memory. The port must be stopped before.
1048 * The HW is initialized with the descriptor start addresses.
1049 *
1050 * Returns:
1051 * none
1052 */
1053 static void PortReInitBmu(
1054 SK_AC *pAC, /* pointer to adapter context */
1055 int PortIndex) /* index of the port for which to re-init */
1056 {
1057 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1058 ("PortReInitBmu "));
1059
1060 /* set address of first descriptor of ring in BMU */
1061 SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+
1062 TX_Q_CUR_DESCR_LOW,
1063 (uint32_t)(((caddr_t)
1064 (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
1065 pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
1066 pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) &
1067 0xFFFFFFFF));
1068 SK_OUT32(pAC->IoBase, TxQueueAddr[PortIndex][TX_PRIO_LOW]+
1069 TX_Q_DESCR_HIGH,
1070 (uint32_t)(((caddr_t)
1071 (pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxdRingHead) -
1072 pAC->TxPort[PortIndex][TX_PRIO_LOW].pTxDescrRing +
1073 pAC->TxPort[PortIndex][TX_PRIO_LOW].VTxDescrRing) >> 32));
1074 SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_CUR_DESCR_LOW,
1075 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
1076 pAC->RxPort[PortIndex].pRxDescrRing +
1077 pAC->RxPort[PortIndex].VRxDescrRing) & 0xFFFFFFFF));
1078 SK_OUT32(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_DESCR_HIGH,
1079 (uint32_t)(((caddr_t)(pAC->RxPort[PortIndex].pRxdRingHead) -
1080 pAC->RxPort[PortIndex].pRxDescrRing +
1081 pAC->RxPort[PortIndex].VRxDescrRing) >> 32));
1082 } /* PortReInitBmu */
1083
1084
1085 /****************************************************************************
1086 *
1087 * SkGeIsr - handle adapter interrupts
1088 *
1089 * Description:
1090 * The interrupt routine is called when the network adapter
1091 * generates an interrupt. It may also be called if another device
1092 * shares this interrupt vector with the driver.
1093 *
1094 * Returns: N/A
1095 *
1096 */
1097 static void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs)
1098 {
1099 struct net_device *dev = (struct net_device *)dev_id;
1100 SK_AC *pAC;
1101 SK_U32 IntSrc; /* interrupts source register contents */
1102
1103 pAC = (SK_AC*) dev->priv;
1104
1105 /*
1106 * Check and process if its our interrupt
1107 */
1108 SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
1109 if (IntSrc == 0) {
1110 return;
1111 }
1112
1113 while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
1114 #if 0 /* software irq currently not used */
1115 if (IntSrc & IRQ_SW) {
1116 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1117 SK_DBGCAT_DRV_INT_SRC,
1118 ("Software IRQ\n"));
1119 }
1120 #endif
1121 if (IntSrc & IRQ_EOF_RX1) {
1122 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1123 SK_DBGCAT_DRV_INT_SRC,
1124 ("EOF RX1 IRQ\n"));
1125 ReceiveIrq(pAC, &pAC->RxPort[0]);
1126 SK_PNMI_CNT_RX_INTR(pAC);
1127 }
1128 if (IntSrc & IRQ_EOF_RX2) {
1129 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1130 SK_DBGCAT_DRV_INT_SRC,
1131 ("EOF RX2 IRQ\n"));
1132 ReceiveIrq(pAC, &pAC->RxPort[1]);
1133 SK_PNMI_CNT_RX_INTR(pAC);
1134 }
1135 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1136 if (IntSrc & IRQ_EOF_AS_TX1) {
1137 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1138 SK_DBGCAT_DRV_INT_SRC,
1139 ("EOF AS TX1 IRQ\n"));
1140 SK_PNMI_CNT_TX_INTR(pAC);
1141 spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1142 FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
1143 spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1144 }
1145 if (IntSrc & IRQ_EOF_AS_TX2) {
1146 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1147 SK_DBGCAT_DRV_INT_SRC,
1148 ("EOF AS TX2 IRQ\n"));
1149 SK_PNMI_CNT_TX_INTR(pAC);
1150 spin_lock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
1151 FreeTxDescriptors(pAC, &pAC->TxPort[1][TX_PRIO_LOW]);
1152 spin_unlock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
1153 }
1154 #if 0 /* only if sync. queues used */
1155 if (IntSrc & IRQ_EOF_SY_TX1) {
1156 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1157 SK_DBGCAT_DRV_INT_SRC,
1158 ("EOF SY TX1 IRQ\n"));
1159 SK_PNMI_CNT_TX_INTR(pAC);
1160 spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1161 FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
1162 spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1163 ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
1164 }
1165 if (IntSrc & IRQ_EOF_SY_TX2) {
1166 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1167 SK_DBGCAT_DRV_INT_SRC,
1168 ("EOF SY TX2 IRQ\n"));
1169 SK_PNMI_CNT_TX_INTR(pAC);
1170 spin_lock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
1171 FreeTxDescriptors(pAC, 1, TX_PRIO_HIGH);
1172 spin_unlock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
1173 ClearTxIrq(pAC, 1, TX_PRIO_HIGH);
1174 }
1175 #endif /* 0 */
1176 #endif /* USE_TX_COMPLETE */
1177
1178 /* do all IO at once */
1179 if (IntSrc & IRQ_EOF_RX1)
1180 ClearAndStartRx(pAC, 0);
1181 if (IntSrc & IRQ_EOF_RX2)
1182 ClearAndStartRx(pAC, 1);
1183 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1184 if (IntSrc & IRQ_EOF_AS_TX1)
1185 ClearTxIrq(pAC, 0, TX_PRIO_LOW);
1186 if (IntSrc & IRQ_EOF_AS_TX2)
1187 ClearTxIrq(pAC, 1, TX_PRIO_LOW);
1188 #endif
1189 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
1190 } /* while (IntSrc & IRQ_MASK != 0) */
1191
1192 if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
1193 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
1194 ("SPECIAL IRQ\n"));
1195 pAC->CheckQueue = SK_FALSE;
1196 spin_lock(&pAC->SlowPathLock);
1197 if (IntSrc & SPECIAL_IRQS)
1198 SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
1199 SkEventDispatcher(pAC, pAC->IoBase);
1200 spin_unlock(&pAC->SlowPathLock);
1201 }
1202 /*
1203 * do it all again is case we cleared an interrupt that
1204 * came in after handling the ring (OUTs may be delayed
1205 * in hardware buffers, but are through after IN)
1206 */
1207 ReceiveIrq(pAC, &pAC->RxPort[pAC->ActivePort]);
1208 // ReceiveIrq(pAC, &pAC->RxPort[1]);
1209
1210 #if 0
1211 // #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1212 spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1213 FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
1214 spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1215
1216 spin_lock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
1217 FreeTxDescriptors(pAC, &pAC->TxPort[1][TX_PRIO_LOW]);
1218 spin_unlock(&pAC->TxPort[1][TX_PRIO_LOW].TxDesRingLock);
1219
1220 #if 0 /* only if sync. queues used */
1221 spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1222 FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
1223 spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1224
1225 spin_lock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
1226 FreeTxDescriptors(pAC, 1, TX_PRIO_HIGH);
1227 spin_unlock(&pAC->TxPort[1][TX_PRIO_HIGH].TxDesRingLock);
1228 #endif /* 0 */
1229 #endif /* USE_TX_COMPLETE */
1230
1231 /* IRQ is processed - Enable IRQs again*/
1232 SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
1233
1234 return;
1235 } /* SkGeIsr */
1236
1237
1238 /****************************************************************************
1239 *
1240 * SkGeIsrOnePort - handle adapter interrupts for single port adapter
1241 *
1242 * Description:
1243 * The interrupt routine is called when the network adapter
1244 * generates an interrupt. It may also be called if another device
1245 * shares this interrupt vector with the driver.
1246 * This is the same as above, but handles only one port.
1247 *
1248 * Returns: N/A
1249 *
1250 */
1251 static void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs)
1252 {
1253 struct net_device *dev = (struct net_device *)dev_id;
1254 SK_AC *pAC;
1255 SK_U32 IntSrc; /* interrupts source register contents */
1256
1257 pAC = (SK_AC*) dev->priv;
1258
1259 /*
1260 * Check and process if its our interrupt
1261 */
1262 SK_IN32(pAC->IoBase, B0_SP_ISRC, &IntSrc);
1263 if (IntSrc == 0) {
1264 return;
1265 }
1266
1267 while (((IntSrc & IRQ_MASK) & ~SPECIAL_IRQS) != 0) {
1268 #if 0 /* software irq currently not used */
1269 if (IntSrc & IRQ_SW) {
1270 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1271 SK_DBGCAT_DRV_INT_SRC,
1272 ("Software IRQ\n"));
1273 }
1274 #endif
1275 if (IntSrc & IRQ_EOF_RX1) {
1276 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1277 SK_DBGCAT_DRV_INT_SRC,
1278 ("EOF RX1 IRQ\n"));
1279 ReceiveIrq(pAC, &pAC->RxPort[0]);
1280 SK_PNMI_CNT_RX_INTR(pAC);
1281 }
1282 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1283 if (IntSrc & IRQ_EOF_AS_TX1) {
1284 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1285 SK_DBGCAT_DRV_INT_SRC,
1286 ("EOF AS TX1 IRQ\n"));
1287 SK_PNMI_CNT_TX_INTR(pAC);
1288 spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1289 FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
1290 spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1291 }
1292 #if 0 /* only if sync. queues used */
1293 if (IntSrc & IRQ_EOF_SY_TX1) {
1294 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1295 SK_DBGCAT_DRV_INT_SRC,
1296 ("EOF SY TX1 IRQ\n"));
1297 SK_PNMI_CNT_TX_INTR(pAC);
1298 spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1299 FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
1300 spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1301 ClearTxIrq(pAC, 0, TX_PRIO_HIGH);
1302 }
1303 #endif /* 0 */
1304 #endif /* USE_TX_COMPLETE */
1305
1306 /* do all IO at once */
1307 if (IntSrc & IRQ_EOF_RX1)
1308 ClearAndStartRx(pAC, 0);
1309 #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1310 if (IntSrc & IRQ_EOF_AS_TX1)
1311 ClearTxIrq(pAC, 0, TX_PRIO_LOW);
1312 #endif
1313 SK_IN32(pAC->IoBase, B0_ISRC, &IntSrc);
1314 } /* while (IntSrc & IRQ_MASK != 0) */
1315
1316 if ((IntSrc & SPECIAL_IRQS) || pAC->CheckQueue) {
1317 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_INT_SRC,
1318 ("SPECIAL IRQ\n"));
1319 pAC->CheckQueue = SK_FALSE;
1320 spin_lock(&pAC->SlowPathLock);
1321 if (IntSrc & SPECIAL_IRQS)
1322 SkGeSirqIsr(pAC, pAC->IoBase, IntSrc);
1323 SkEventDispatcher(pAC, pAC->IoBase);
1324 spin_unlock(&pAC->SlowPathLock);
1325 }
1326 /*
1327 * do it all again is case we cleared an interrupt that
1328 * came in after handling the ring (OUTs may be delayed
1329 * in hardware buffers, but are through after IN)
1330 */
1331 ReceiveIrq(pAC, &pAC->RxPort[0]);
1332
1333 #if 0
1334 // #ifdef USE_TX_COMPLETE /* only if tx complete interrupt used */
1335 spin_lock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1336 FreeTxDescriptors(pAC, &pAC->TxPort[0][TX_PRIO_LOW]);
1337 spin_unlock(&pAC->TxPort[0][TX_PRIO_LOW].TxDesRingLock);
1338
1339 #if 0 /* only if sync. queues used */
1340 spin_lock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1341 FreeTxDescriptors(pAC, 0, TX_PRIO_HIGH);
1342 spin_unlock(&pAC->TxPort[0][TX_PRIO_HIGH].TxDesRingLock);
1343
1344 #endif /* 0 */
1345 #endif /* USE_TX_COMPLETE */
1346
1347 /* IRQ is processed - Enable IRQs again*/
1348 SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
1349
1350 return;
1351 } /* SkGeIsrOnePort */
1352
1353
1354 /****************************************************************************
1355 *
1356 * SkGeOpen - handle start of initialized adapter
1357 *
1358 * Description:
1359 * This function starts the initialized adapter.
1360 * The board level variable is set and the adapter is
1361 * brought to full functionality.
1362 * The device flags are set for operation.
1363 * Do all necessary level 2 initialization, enable interrupts and
1364 * give start command to RLMT.
1365 *
1366 * Returns:
1367 * 0 on success
1368 * != 0 on error
1369 */
1370 static int SkGeOpen(
1371 struct net_device *dev)
1372 {
1373 SK_AC *pAC; /* pointer to adapter context struct */
1374 unsigned int Flags; /* for spin lock */
1375 int i;
1376 SK_EVPARA EvPara; /* an event parameter union */
1377
1378 pAC = (SK_AC*) dev->priv;
1379
1380 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1381 ("SkGeOpen: pAC=0x%lX:\n", (unsigned long)pAC));
1382
1383 if (pAC->BoardLevel == 0) {
1384 /* level 1 init common modules here */
1385 if (SkGeInit(pAC, pAC->IoBase, 1) != 0) {
1386 printk("%s: HWInit(1) failed\n", pAC->dev->name);
1387 return (-1);
1388 }
1389 SkI2cInit (pAC, pAC->IoBase, 1);
1390 SkEventInit (pAC, pAC->IoBase, 1);
1391 SkPnmiInit (pAC, pAC->IoBase, 1);
1392 SkAddrInit (pAC, pAC->IoBase, 1);
1393 SkRlmtInit (pAC, pAC->IoBase, 1);
1394 SkTimerInit (pAC, pAC->IoBase, 1);
1395 pAC->BoardLevel = 1;
1396 }
1397
1398 /* level 2 init modules here */
1399 SkGeInit (pAC, pAC->IoBase, 2);
1400 SkI2cInit (pAC, pAC->IoBase, 2);
1401 SkEventInit (pAC, pAC->IoBase, 2);
1402 SkPnmiInit (pAC, pAC->IoBase, 2);
1403 SkAddrInit (pAC, pAC->IoBase, 2);
1404 SkRlmtInit (pAC, pAC->IoBase, 2);
1405 SkTimerInit (pAC, pAC->IoBase, 2);
1406 pAC->BoardLevel = 2;
1407
1408 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1409 // Enable transmit descriptor polling.
1410 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
1411 FillRxRing(pAC, &pAC->RxPort[i]);
1412 }
1413 SkGeYellowLED(pAC, pAC->IoBase, 1);
1414
1415 #ifdef USE_INT_MOD
1416 // moderate only TX complete interrupts (these are not time critical)
1417 #define IRQ_MOD_MASK (IRQ_EOF_AS_TX1 | IRQ_EOF_AS_TX2)
1418 {
1419 unsigned long ModBase;
1420 ModBase = 53125000 / INTS_PER_SEC;
1421 SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase);
1422 SK_OUT32(pAC->IoBase, B2_IRQM_MSK, IRQ_MOD_MASK);
1423 SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_START);
1424 }
1425 #endif
1426
1427 /* enable Interrupts */
1428 SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
1429 SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
1430
1431 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1432 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
1433 if (pAC->RlmtMode != 0) {
1434 EvPara.Para32[0] = pAC->RlmtMode;
1435 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_MODE_CHANGE,
1436 EvPara);
1437 }
1438 SkEventDispatcher(pAC, pAC->IoBase);
1439 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1440
1441 MOD_INC_USE_COUNT;
1442
1443 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1444 ("SkGeOpen suceeded\n"));
1445
1446 return (0);
1447 } /* SkGeOpen */
1448
1449
1450 /****************************************************************************
1451 *
1452 * SkGeClose - Stop initialized adapter
1453 *
1454 * Description:
1455 * Close initialized adapter.
1456 *
1457 * Returns:
1458 * 0 - on success
1459 * error code - on error
1460 */
1461 static int SkGeClose(
1462 struct net_device *dev)
1463 {
1464 SK_AC *pAC;
1465 unsigned int Flags; /* for spin lock */
1466 int i;
1467 SK_EVPARA EvPara;
1468
1469 netif_stop_queue(dev);
1470
1471 pAC = (SK_AC*) dev->priv;
1472
1473 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1474 ("SkGeClose: pAC=0x%lX ", (unsigned long)pAC));
1475
1476 /*
1477 * Clear multicast table, promiscuous mode ....
1478 */
1479 SkAddrMcClear(pAC, pAC->IoBase, pAC->ActivePort, 0);
1480 SkAddrPromiscuousChange(pAC, pAC->IoBase, pAC->ActivePort,
1481 SK_PROM_MODE_NONE);
1482
1483
1484 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
1485 /* disable interrupts */
1486 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1487 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
1488 SkEventDispatcher(pAC, pAC->IoBase);
1489 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
1490 /* stop the hardware */
1491 SkGeDeInit(pAC, pAC->IoBase);
1492 pAC->BoardLevel = 0;
1493
1494 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
1495
1496 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
1497 /* clear all descriptor rings */
1498 ReceiveIrq(pAC, &pAC->RxPort[i]);
1499 ClearRxRing(pAC, &pAC->RxPort[i]);
1500 ClearTxRing(pAC, &pAC->TxPort[i][TX_PRIO_LOW]);
1501 }
1502
1503 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
1504 ("SkGeClose: done "));
1505
1506 MOD_DEC_USE_COUNT;
1507
1508 return (0);
1509 } /* SkGeClose */
1510
1511 /*****************************************************************************
1512 *
1513 * SkGeXmit - Linux frame transmit function
1514 *
1515 * Description:
1516 * The system calls this function to send frames onto the wire.
1517 * It puts the frame in the tx descriptor ring. If the ring is
1518 * full then, the 'tbusy' flag is set.
1519 *
1520 * Returns:
1521 * 0, if everything is ok
1522 * !=0, on error
1523 * WARNING: returning 1 in 'tbusy' case caused system crashes (double
1524 * allocated skb's) !!!
1525 */
1526 static int SkGeXmit(struct sk_buff *skb, struct net_device *dev)
1527 {
1528 SK_AC *pAC;
1529 int Rc; /* return code of XmitFrame */
1530
1531 pAC = (SK_AC*) dev->priv;
1532
1533 Rc = XmitFrame(pAC, &pAC->TxPort[pAC->ActivePort][TX_PRIO_LOW], skb);
1534
1535 /* Transmitter out of resources? */
1536 if (Rc <= 0)
1537 netif_stop_queue(dev);
1538
1539 /* If not taken, give buffer ownership back to the
1540 * queueing layer.
1541 */
1542 if (Rc < 0)
1543 return (1);
1544
1545 dev->trans_start = jiffies;
1546 return (0);
1547 } /* SkGeXmit */
1548
1549
1550 /*****************************************************************************
1551 *
1552 * XmitFrame - fill one socket buffer into the transmit ring
1553 *
1554 * Description:
1555 * This function puts a message into the transmit descriptor ring
1556 * if there is a descriptors left.
1557 * Linux skb's consist of only one continuous buffer.
1558 * The first step locks the ring. It is held locked
1559 * all time to avoid problems with SWITCH_../PORT_RESET.
1560 * Then the descriptoris allocated.
1561 * The second part is linking the buffer to the descriptor.
1562 * At the very last, the Control field of the descriptor
1563 * is made valid for the BMU and a start TX command is given
1564 * if necessary.
1565 *
1566 * Returns:
1567 * > 0 - on succes: the number of bytes in the message
1568 * = 0 - on resource shortage: this frame sent or dropped, now
1569 * the ring is full ( -> set tbusy)
1570 * < 0 - on failure: other problems ( -> return failure to upper layers)
1571 */
1572 static int XmitFrame(
1573 SK_AC *pAC, /* pointer to adapter context */
1574 TX_PORT *pTxPort, /* pointer to struct of port to send to */
1575 struct sk_buff *pMessage) /* pointer to send-message */
1576 {
1577 TXD *pTxd; /* the rxd to fill */
1578 unsigned int Flags;
1579 SK_U64 PhysAddr;
1580 int BytesSend;
1581
1582 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
1583 ("X"));
1584
1585 spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
1586
1587 if (pTxPort->TxdRingFree == 0) {
1588 /* no enough free descriptors in ring at the moment */
1589 FreeTxDescriptors(pAC, pTxPort);
1590 if (pTxPort->TxdRingFree == 0) {
1591 spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1592 SK_PNMI_CNT_NO_TX_BUF(pAC);
1593 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1594 SK_DBGCAT_DRV_TX_PROGRESS,
1595 ("XmitFrame failed\n"));
1596 /* this message can not be sent now */
1597 return (-1);
1598 }
1599 }
1600 /* advance head counter behind descriptor needed for this frame */
1601 pTxd = pTxPort->pTxdRingHead;
1602 pTxPort->pTxdRingHead = pTxd->pNextTxd;
1603 pTxPort->TxdRingFree--;
1604 /* the needed descriptor is reserved now */
1605
1606 /*
1607 * everything allocated ok, so add buffer to descriptor
1608 */
1609
1610 #ifdef SK_DUMP_TX
1611 DumpMsg(pMessage, "XmitFrame");
1612 #endif
1613
1614 /* set up descriptor and CONTROL dword */
1615 PhysAddr = (SK_U64) pci_map_single(&pAC->PciDev,
1616 pMessage->data,
1617 pMessage->len,
1618 PCI_DMA_TODEVICE);
1619 pTxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff);
1620 pTxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1621 pTxd->pMBuf = pMessage;
1622 pTxd->TBControl = TX_CTRL_OWN_BMU | TX_CTRL_STF |
1623 TX_CTRL_CHECK_DEFAULT | TX_CTRL_SOFTWARE |
1624 #ifdef USE_TX_COMPLETE
1625 TX_CTRL_EOF | TX_CTRL_EOF_IRQ | pMessage->len;
1626 #else
1627 TX_CTRL_EOF | pMessage->len;
1628 #endif
1629
1630 if ((pTxPort->pTxdRingPrev->TBControl & TX_CTRL_OWN_BMU) == 0) {
1631 /* previous descriptor already done, so give tx start cmd */
1632 /* StartTx(pAC, pTxPort->HwAddr); */
1633 SK_OUT8(pTxPort->HwAddr, TX_Q_CTRL, TX_Q_CTRL_START);
1634 }
1635 pTxPort->pTxdRingPrev = pTxd;
1636
1637
1638 BytesSend = pMessage->len;
1639 /* after releasing the lock, the skb may be immidiately freed */
1640 if (pTxPort->TxdRingFree != 0) {
1641 spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1642 return (BytesSend);
1643 }
1644 else {
1645 /* ring full: set tbusy on return */
1646 spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
1647 return (0);
1648 }
1649 } /* XmitFrame */
1650
1651
1652 /*****************************************************************************
1653 *
1654 * FreeTxDescriptors - release descriptors from the descriptor ring
1655 *
1656 * Description:
1657 * This function releases descriptors from a transmit ring if they
1658 * have been sent by the BMU.
1659 * If a descriptors is sent, it can be freed and the message can
1660 * be freed, too.
1661 * The SOFTWARE controllable bit is used to prevent running around a
1662 * completely free ring for ever. If this bit is no set in the
1663 * frame (by XmitFrame), this frame has never been sent or is
1664 * already freed.
1665 * The Tx descriptor ring lock must be held while calling this function !!!
1666 *
1667 * Returns:
1668 * none
1669 */
1670 static void FreeTxDescriptors(
1671 SK_AC *pAC, /* pointer to the adapter context */
1672 TX_PORT *pTxPort) /* pointer to destination port structure */
1673 {
1674 TXD *pTxd; /* pointer to the checked descriptor */
1675 TXD *pNewTail; /* pointer to 'end' of the ring */
1676 SK_U32 Control; /* TBControl field of descriptor */
1677 SK_U64 PhysAddr; /* address of DMA mapping */
1678
1679 pNewTail = pTxPort->pTxdRingTail;
1680 pTxd = pNewTail;
1681
1682 /*
1683 * loop forever; exits if TX_CTRL_SOFTWARE bit not set in start frame
1684 * or TX_CTRL_OWN_BMU bit set in any frame
1685 */
1686 while (1) {
1687 Control = pTxd->TBControl;
1688 if ((Control & TX_CTRL_SOFTWARE) == 0) {
1689 /*
1690 * software controllable bit is set in first
1691 * fragment when given to BMU. Not set means that
1692 * this fragment was never sent or is already
1693 * freed ( -> ring completely free now).
1694 */
1695 pTxPort->pTxdRingTail = pTxd;
1696 netif_start_queue(pAC->dev);
1697 return;
1698 }
1699 if (Control & TX_CTRL_OWN_BMU) {
1700 pTxPort->pTxdRingTail = pTxd;
1701 if (pTxPort->TxdRingFree > 0) {
1702 netif_start_queue(pAC->dev);
1703 }
1704 return;
1705 }
1706
1707 /* release the DMA mapping */
1708 PhysAddr = ((SK_U64) pTxd->VDataHigh) << (SK_U64) 32;
1709 PhysAddr |= (SK_U64) pTxd->VDataLow;
1710 pci_unmap_single(&pAC->PciDev, PhysAddr,
1711 pTxd->pMBuf->len,
1712 PCI_DMA_TODEVICE);
1713
1714 /* free message */
1715 DEV_KFREE_SKB_ANY(pTxd->pMBuf);
1716 pTxPort->TxdRingFree++;
1717 pTxd->TBControl &= ~TX_CTRL_SOFTWARE;
1718 pTxd = pTxd->pNextTxd; /* point behind fragment with EOF */
1719 } /* while(forever) */
1720 } /* FreeTxDescriptors */
1721
1722
1723 /*****************************************************************************
1724 *
1725 * FillRxRing - fill the receive ring with valid descriptors
1726 *
1727 * Description:
1728 * This function fills the receive ring descriptors with data
1729 * segments and makes them valid for the BMU.
1730 * The active ring is filled completely, if possible.
1731 * The non-active ring is filled only partial to save memory.
1732 *
1733 * Description of rx ring structure:
1734 * head - points to the descriptor which will be used next by the BMU
1735 * tail - points to the next descriptor to give to the BMU
1736 *
1737 * Returns: N/A
1738 */
1739 static void FillRxRing(
1740 SK_AC *pAC, /* pointer to the adapter context */
1741 RX_PORT *pRxPort) /* ptr to port struct for which the ring
1742 should be filled */
1743 {
1744 unsigned int Flags;
1745
1746 spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
1747 while (pRxPort->RxdRingFree > pRxPort->RxFillLimit) {
1748 if(!FillRxDescriptor(pAC, pRxPort))
1749 break;
1750 }
1751 spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
1752 } /* FillRxRing */
1753
1754
1755 /*****************************************************************************
1756 *
1757 * FillRxDescriptor - fill one buffer into the receive ring
1758 *
1759 * Description:
1760 * The function allocates a new receive buffer and
1761 * puts it into the next descriptor.
1762 *
1763 * Returns:
1764 * SK_TRUE - a buffer was added to the ring
1765 * SK_FALSE - a buffer could not be added
1766 */
1767 static SK_BOOL FillRxDescriptor(
1768 SK_AC *pAC, /* pointer to the adapter context struct */
1769 RX_PORT *pRxPort) /* ptr to port struct of ring to fill */
1770 {
1771 struct sk_buff *pMsgBlock; /* pointer to a new message block */
1772 RXD *pRxd; /* the rxd to fill */
1773 SK_U16 Length; /* data fragment length */
1774 SK_U64 PhysAddr; /* physical address of a rx buffer */
1775
1776 pMsgBlock = alloc_skb(pAC->RxBufSize, GFP_ATOMIC);
1777 if (pMsgBlock == NULL) {
1778 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1779 SK_DBGCAT_DRV_ENTRY,
1780 ("%s: Allocation of rx buffer failed !\n",
1781 pAC->dev->name));
1782 SK_PNMI_CNT_NO_RX_BUF(pAC);
1783 return(SK_FALSE);
1784 }
1785 skb_reserve(pMsgBlock, 2); /* to align IP frames */
1786 /* skb allocated ok, so add buffer */
1787 pRxd = pRxPort->pRxdRingTail;
1788 pRxPort->pRxdRingTail = pRxd->pNextRxd;
1789 pRxPort->RxdRingFree--;
1790 Length = pAC->RxBufSize;
1791 PhysAddr = (SK_U64) pci_map_single(&pAC->PciDev,
1792 pMsgBlock->data,
1793 pAC->RxBufSize - 2,
1794 PCI_DMA_FROMDEVICE);
1795 pRxd->VDataLow = (SK_U32) (PhysAddr & 0xffffffff);
1796 pRxd->VDataHigh = (SK_U32) (PhysAddr >> 32);
1797 pRxd->pMBuf = pMsgBlock;
1798 pRxd->RBControl = RX_CTRL_OWN_BMU | RX_CTRL_STF |
1799 RX_CTRL_EOF_IRQ | RX_CTRL_CHECK_CSUM | Length;
1800 return (SK_TRUE);
1801
1802 } /* FillRxDescriptor */
1803
1804
1805 /*****************************************************************************
1806 *
1807 * ReQueueRxBuffer - fill one buffer back into the receive ring
1808 *
1809 * Description:
1810 * Fill a given buffer back into the rx ring. The buffer
1811 * has been previously allocated and aligned, and its phys.
1812 * address calculated, so this is no more necessary.
1813 *
1814 * Returns: N/A
1815 */
1816 static void ReQueueRxBuffer(
1817 SK_AC *pAC, /* pointer to the adapter context struct */
1818 RX_PORT *pRxPort, /* ptr to port struct of ring to fill */
1819 struct sk_buff *pMsg, /* pointer to the buffer */
1820 SK_U32 PhysHigh, /* phys address high dword */
1821 SK_U32 PhysLow) /* phys address low dword */
1822 {
1823 RXD *pRxd; /* the rxd to fill */
1824 SK_U16 Length; /* data fragment length */
1825
1826 pRxd = pRxPort->pRxdRingTail;
1827 pRxPort->pRxdRingTail = pRxd->pNextRxd;
1828 pRxPort->RxdRingFree--;
1829 Length = pAC->RxBufSize;
1830 pRxd->VDataLow = PhysLow;
1831 pRxd->VDataHigh = PhysHigh;
1832 pRxd->pMBuf = pMsg;
1833 pRxd->RBControl = RX_CTRL_OWN_BMU | RX_CTRL_STF |
1834 RX_CTRL_EOF_IRQ | RX_CTRL_CHECK_CSUM | Length;
1835 return;
1836 } /* ReQueueRxBuffer */
1837
1838
1839 /*****************************************************************************
1840 *
1841 * ReceiveIrq - handle a receive IRQ
1842 *
1843 * Description:
1844 * This function is called when a receive IRQ is set.
1845 * It walks the receive descriptor ring and sends up all
1846 * frames that are complete.
1847 *
1848 * Returns: N/A
1849 */
1850 static void ReceiveIrq(
1851 SK_AC *pAC, /* pointer to adapter context */
1852 RX_PORT *pRxPort) /* pointer to receive port struct */
1853 {
1854 RXD *pRxd; /* pointer to receive descriptors */
1855 SK_U32 Control; /* control field of descriptor */
1856 struct sk_buff *pMsg; /* pointer to message holding frame */
1857 struct sk_buff *pNewMsg; /* pointer to a new message for copying frame */
1858 int FrameLength; /* total length of received frame */
1859 SK_MBUF *pRlmtMbuf; /* ptr to a buffer for giving a frame to rlmt */
1860 SK_EVPARA EvPara; /* an event parameter union */
1861 int PortIndex = pRxPort->PortIndex;
1862 unsigned int Offset;
1863 unsigned int NumBytes;
1864 unsigned int ForRlmt;
1865 SK_BOOL IsBc;
1866 SK_BOOL IsMc;
1867 SK_U32 FrameStat;
1868 unsigned short Csum1;
1869 unsigned short Csum2;
1870 unsigned short Type;
1871 int Result;
1872 SK_U64 PhysAddr;
1873
1874
1875 rx_start:
1876 /* do forever; exit if RX_CTRL_OWN_BMU found */
1877 while (pRxPort->RxdRingFree < pAC->RxDescrPerRing) {
1878 pRxd = pRxPort->pRxdRingHead;
1879
1880 Control = pRxd->RBControl;
1881
1882 /* check if this descriptor is ready */
1883 if ((Control & RX_CTRL_OWN_BMU) != 0) {
1884 /* this descriptor is not yet ready */
1885 FillRxRing(pAC, pRxPort);
1886 return;
1887 }
1888
1889 /* get length of frame and check it */
1890 FrameLength = Control & RX_CTRL_LEN_MASK;
1891 if (FrameLength > pAC->RxBufSize)
1892 goto rx_failed;
1893
1894 /* check for STF and EOF */
1895 if ((Control & (RX_CTRL_STF | RX_CTRL_EOF)) !=
1896 (RX_CTRL_STF | RX_CTRL_EOF))
1897 goto rx_failed;
1898
1899 /* here we have a complete frame in the ring */
1900 pMsg = pRxd->pMBuf;
1901
1902 /*
1903 * if short frame then copy data to reduce memory waste
1904 */
1905 pNewMsg = NULL;
1906 if (FrameLength < SK_COPY_THRESHOLD) {
1907 pNewMsg = alloc_skb(FrameLength+2, GFP_ATOMIC);
1908 if (pNewMsg != NULL) {
1909 PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
1910 PhysAddr |= (SK_U64) pRxd->VDataLow;
1911
1912 /* use new skb and copy data */
1913 skb_reserve(pNewMsg, 2);
1914 skb_put(pNewMsg, FrameLength);
1915 pci_dma_sync_single(&pAC->PciDev,
1916 (dma_addr_t) PhysAddr,
1917 FrameLength,
1918 PCI_DMA_FROMDEVICE);
1919 eth_copy_and_sum(pNewMsg, pMsg->data,
1920 FrameLength, 0);
1921 ReQueueRxBuffer(pAC, pRxPort, pMsg,
1922 pRxd->VDataHigh, pRxd->VDataLow);
1923 pMsg = pNewMsg;
1924 }
1925 }
1926
1927 /*
1928 * if large frame, or SKB allocation failed, pass
1929 * the SKB directly to the networking
1930 */
1931 if (pNewMsg == NULL) {
1932 PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
1933 PhysAddr |= (SK_U64) pRxd->VDataLow;
1934
1935 /* release the DMA mapping */
1936 pci_unmap_single(&pAC->PciDev,
1937 PhysAddr,
1938 pAC->RxBufSize - 2,
1939 PCI_DMA_FROMDEVICE);
1940
1941 /* set length in message */
1942 skb_put(pMsg, FrameLength);
1943 /* hardware checksum */
1944 Type = ntohs(*((short*)&pMsg->data[12]));
1945 if (Type == 0x800) {
1946 Csum1=le16_to_cpu(pRxd->TcpSums & 0xffff);
1947 Csum2=le16_to_cpu((pRxd->TcpSums >> 16) & 0xffff);
1948 if ((Csum1 & 0xfffe) && (Csum2 & 0xfffe)) {
1949 Result = SkCsGetReceiveInfo(pAC,
1950 &pMsg->data[14],
1951 Csum1, Csum2);
1952 if (Result ==
1953 SKCS_STATUS_IP_FRAGMENT ||
1954 Result ==
1955 SKCS_STATUS_IP_CSUM_OK ||
1956 Result ==
1957 SKCS_STATUS_TCP_CSUM_OK ||
1958 Result ==
1959 SKCS_STATUS_UDP_CSUM_OK) {
1960 pMsg->ip_summed =
1961 CHECKSUM_UNNECESSARY;
1962 }
1963 } /* checksum calculation valid */
1964 } /* IP frame */
1965 } /* frame > SK_COPY_TRESHOLD */
1966
1967 FrameStat = pRxd->FrameStat;
1968 if ((FrameStat & XMR_FS_LNG_ERR) != 0) {
1969 /* jumbo frame, count to correct statistic */
1970 SK_PNMI_CNT_RX_LONGFRAMES(pAC, pRxPort->PortIndex);
1971 }
1972 pRxd = pRxd->pNextRxd;
1973 pRxPort->pRxdRingHead = pRxd;
1974 pRxPort->RxdRingFree ++;
1975 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS,
1976 ("Received frame of length %d on port %d\n",
1977 FrameLength, PortIndex));
1978 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_RX_PROGRESS,
1979 ("Number of free rx descriptors: %d\n",
1980 pRxPort->RxdRingFree));
1981
1982 if ((Control & RX_CTRL_STAT_VALID) == RX_CTRL_STAT_VALID &&
1983 (FrameStat & XMR_FS_ANY_ERR) == 0) {
1984 // was the following, changed to allow VLAN support
1985 // (XMR_FS_ANY_ERR | XMR_FS_1L_VLAN | XMR_FS_2L_VLAN)
1986 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
1987 SK_DBGCAT_DRV_RX_PROGRESS,("V"));
1988 ForRlmt = SK_RLMT_RX_PROTOCOL;
1989 IsBc = (FrameStat & XMR_FS_BC)==XMR_FS_BC;
1990 SK_RLMT_PRE_LOOKAHEAD(pAC, PortIndex, FrameLength,
1991 IsBc, &Offset, &NumBytes);
1992 if (NumBytes != 0) {
1993 IsMc = (FrameStat & XMR_FS_MC)==XMR_FS_MC;
1994 SK_RLMT_LOOKAHEAD(pAC, PortIndex,
1995 &pMsg->data[Offset],
1996 IsBc, IsMc, &ForRlmt);
1997 }
1998 if (ForRlmt == SK_RLMT_RX_PROTOCOL) {
1999 /* send up only frames from active port */
2000 if (PortIndex == pAC->ActivePort) {
2001 /* frame for upper layer */
2002 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2003 SK_DBGCAT_DRV_RX_PROGRESS,
2004 ("U"));
2005 #ifdef DUMP_RX
2006 DumpMsg(pMsg, "Rx");
2007 #endif
2008 pMsg->dev = pAC->dev;
2009 pMsg->protocol = eth_type_trans(pMsg,
2010 pAC->dev);
2011 SK_PNMI_CNT_RX_OCTETS_DELIVERED(pAC,
2012 FrameLength);
2013 netif_rx(pMsg);
2014 pAC->dev->last_rx = jiffies;
2015 }
2016 else {
2017 /* drop frame */
2018 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2019 SK_DBGCAT_DRV_RX_PROGRESS,
2020 ("D"));
2021 DEV_KFREE_SKB_IRQ(pMsg);
2022 }
2023 } /* if not for rlmt */
2024 else {
2025 /* packet for rlmt */
2026 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2027 SK_DBGCAT_DRV_RX_PROGRESS, ("R"));
2028 pRlmtMbuf = SkDrvAllocRlmtMbuf(pAC,
2029 pAC->IoBase, FrameLength);
2030 if (pRlmtMbuf != NULL) {
2031 pRlmtMbuf->pNext = NULL;
2032 pRlmtMbuf->Length = FrameLength;
2033 pRlmtMbuf->PortIdx = PortIndex;
2034 EvPara.pParaPtr = pRlmtMbuf;
2035 memcpy((char*)(pRlmtMbuf->pData),
2036 (char*)(pMsg->data),
2037 FrameLength);
2038 SkEventQueue(pAC, SKGE_RLMT,
2039 SK_RLMT_PACKET_RECEIVED,
2040 EvPara);
2041 pAC->CheckQueue = SK_TRUE;
2042 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2043 SK_DBGCAT_DRV_RX_PROGRESS,
2044 ("Q"));
2045 }
2046 if ((pAC->dev->flags &
2047 (IFF_PROMISC | IFF_ALLMULTI)) != 0 ||
2048 (ForRlmt & SK_RLMT_RX_PROTOCOL) ==
2049 SK_RLMT_RX_PROTOCOL) {
2050 pMsg->dev = pAC->dev;
2051 pMsg->protocol = eth_type_trans(pMsg,
2052 pAC->dev);
2053 netif_rx(pMsg);
2054 pAC->dev->last_rx = jiffies;
2055 }
2056 else {
2057 DEV_KFREE_SKB_IRQ(pMsg);
2058 }
2059
2060 } /* if packet for rlmt */
2061 } /* if valid frame */
2062 else {
2063 /* there is a receive error in this frame */
2064 if ((FrameStat & XMR_FS_1L_VLAN) != 0) {
2065 printk("%s: Received frame"
2066 " with VLAN Level 1 header, check"
2067 " switch configuration\n",
2068 pAC->dev->name);
2069 }
2070 if ((FrameStat & XMR_FS_2L_VLAN) != 0) {
2071 printk("%s: Received frame"
2072 " with VLAN Level 2 header, check"
2073 " switch configuration\n",
2074 pAC->dev->name);
2075 }
2076 SK_DBG_MSG(NULL, SK_DBGMOD_DRV,
2077 SK_DBGCAT_DRV_RX_PROGRESS,
2078 ("skge: Error in received frame, dropped!\n"
2079 "Control: %x\nRxStat: %x\n",
2080 Control, FrameStat));
2081 DEV_KFREE_SKB_IRQ(pMsg);
2082 }
2083 } /* while */
2084 FillRxRing(pAC, pRxPort);
2085 /* do not start if called from Close */
2086 if (pAC->BoardLevel > 0) {
2087 ClearAndStartRx(pAC, PortIndex);
2088 }
2089 return;
2090
2091 rx_failed:
2092 /* remove error frame */
2093 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR,
2094 ("Schrottdescriptor, length: 0x%x\n", FrameLength));
2095
2096 /* release the DMA mapping */
2097 PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2098 PhysAddr |= (SK_U64) pRxd->VDataLow;
2099 pci_unmap_single(&pAC->PciDev,
2100 PhysAddr,
2101 pAC->RxBufSize - 2,
2102 PCI_DMA_FROMDEVICE);
2103 DEV_KFREE_SKB_IRQ(pRxd->pMBuf);
2104 pRxd->pMBuf = NULL;
2105 pRxPort->RxdRingFree++;
2106 pRxPort->pRxdRingHead = pRxd->pNextRxd;
2107 goto rx_start;
2108
2109 } /* ReceiveIrq */
2110
2111
2112 /*****************************************************************************
2113 *
2114 * ClearAndStartRx - give a start receive command to BMU, clear IRQ
2115 *
2116 * Description:
2117 * This function sends a start command and a clear interrupt
2118 * command for one receive queue to the BMU.
2119 *
2120 * Returns: N/A
2121 * none
2122 */
2123 static void ClearAndStartRx(
2124 SK_AC *pAC, /* pointer to the adapter context */
2125 int PortIndex) /* index of the receive port (XMAC) */
2126 {
2127 SK_OUT8(pAC->IoBase, RxQueueAddr[PortIndex]+RX_Q_CTRL,
2128 RX_Q_CTRL_START | RX_Q_CTRL_CLR_I_EOF);
2129 } /* ClearAndStartRx */
2130
2131
2132 /*****************************************************************************
2133 *
2134 * ClearTxIrq - give a clear transmit IRQ command to BMU
2135 *
2136 * Description:
2137 * This function sends a clear tx IRQ command for one
2138 * transmit queue to the BMU.
2139 *
2140 * Returns: N/A
2141 */
2142 static void ClearTxIrq(
2143 SK_AC *pAC, /* pointer to the adapter context */
2144 int PortIndex, /* index of the transmit port (XMAC) */
2145 int Prio) /* priority or normal queue */
2146 {
2147 SK_OUT8(pAC->IoBase, TxQueueAddr[PortIndex][Prio]+TX_Q_CTRL,
2148 TX_Q_CTRL_CLR_I_EOF);
2149 } /* ClearTxIrq */
2150
2151
2152 /*****************************************************************************
2153 *
2154 * ClearRxRing - remove all buffers from the receive ring
2155 *
2156 * Description:
2157 * This function removes all receive buffers from the ring.
2158 * The receive BMU must be stopped before calling this function.
2159 *
2160 * Returns: N/A
2161 */
2162 static void ClearRxRing(
2163 SK_AC *pAC, /* pointer to adapter context */
2164 RX_PORT *pRxPort) /* pointer to rx port struct */
2165 {
2166 RXD *pRxd; /* pointer to the current descriptor */
2167 unsigned int Flags;
2168 SK_U64 PhysAddr;
2169
2170 if (pRxPort->RxdRingFree == pAC->RxDescrPerRing) {
2171 return;
2172 }
2173 spin_lock_irqsave(&pRxPort->RxDesRingLock, Flags);
2174 pRxd = pRxPort->pRxdRingHead;
2175 do {
2176 if (pRxd->pMBuf != NULL) {
2177 PhysAddr = ((SK_U64) pRxd->VDataHigh) << (SK_U64)32;
2178 PhysAddr |= (SK_U64) pRxd->VDataLow;
2179 pci_unmap_single(&pAC->PciDev,
2180 PhysAddr,
2181 pAC->RxBufSize - 2,
2182 PCI_DMA_FROMDEVICE);
2183 DEV_KFREE_SKB(pRxd->pMBuf);
2184 pRxd->pMBuf = NULL;
2185 }
2186 pRxd->RBControl &= RX_CTRL_OWN_BMU;
2187 pRxd = pRxd->pNextRxd;
2188 pRxPort->RxdRingFree++;
2189 } while (pRxd != pRxPort->pRxdRingTail);
2190 pRxPort->pRxdRingTail = pRxPort->pRxdRingHead;
2191 spin_unlock_irqrestore(&pRxPort->RxDesRingLock, Flags);
2192 } /* ClearRxRing */
2193
2194
2195 /*****************************************************************************
2196 *
2197 * ClearTxRing - remove all buffers from the transmit ring
2198 *
2199 * Description:
2200 * This function removes all transmit buffers from the ring.
2201 * The transmit BMU must be stopped before calling this function
2202 * and transmitting at the upper level must be disabled.
2203 * The BMU own bit of all descriptors is cleared, the rest is
2204 * done by calling FreeTxDescriptors.
2205 *
2206 * Returns: N/A
2207 */
2208 static void ClearTxRing(
2209 SK_AC *pAC, /* pointer to adapter context */
2210 TX_PORT *pTxPort) /* pointer to tx prt struct */
2211 {
2212 TXD *pTxd; /* pointer to the current descriptor */
2213 int i;
2214 unsigned int Flags;
2215
2216 spin_lock_irqsave(&pTxPort->TxDesRingLock, Flags);
2217 pTxd = pTxPort->pTxdRingHead;
2218 for (i=0; i<pAC->TxDescrPerRing; i++) {
2219 pTxd->TBControl &= ~TX_CTRL_OWN_BMU;
2220 pTxd = pTxd->pNextTxd;
2221 }
2222 FreeTxDescriptors(pAC, pTxPort);
2223 spin_unlock_irqrestore(&pTxPort->TxDesRingLock, Flags);
2224 } /* ClearTxRing */
2225
2226
2227 /*****************************************************************************
2228 *
2229 * SetQueueSizes - configure the sizes of rx and tx queues
2230 *
2231 * Description:
2232 * This function assigns the sizes for active and passive port
2233 * to the appropriate HWinit structure variables.
2234 * The passive port(s) get standard values, all remaining RAM
2235 * is given to the active port.
2236 * The queue sizes are in kbyte and must be multiple of 8.
2237 * The limits for the number of buffers filled into the rx rings
2238 * is also set in this routine.
2239 *
2240 * Returns:
2241 * none
2242 */
2243 static void SetQueueSizes(
2244 SK_AC *pAC) /* pointer to the adapter context */
2245 {
2246 int StandbyRam; /* adapter RAM used for a standby port */
2247 int RemainingRam; /* adapter RAM available for the active port */
2248 int RxRam; /* RAM used for the active port receive queue */
2249 int i; /* loop counter */
2250
2251 StandbyRam = SK_RLMT_STANDBY_QRXSIZE + SK_RLMT_STANDBY_QXASIZE +
2252 SK_RLMT_STANDBY_QXSSIZE;
2253 RemainingRam = pAC->GIni.GIRamSize -
2254 (pAC->GIni.GIMacsFound-1) * StandbyRam;
2255 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2256 pAC->GIni.GP[i].PRxQSize = SK_RLMT_STANDBY_QRXSIZE;
2257 pAC->GIni.GP[i].PXSQSize = SK_RLMT_STANDBY_QXSSIZE;
2258 pAC->GIni.GP[i].PXAQSize = SK_RLMT_STANDBY_QXASIZE;
2259 }
2260 RxRam = (RemainingRam * 8 / 10) & ~7;
2261 pAC->GIni.GP[pAC->ActivePort].PRxQSize = RxRam;
2262 pAC->GIni.GP[pAC->ActivePort].PXSQSize = 0;
2263 pAC->GIni.GP[pAC->ActivePort].PXAQSize =
2264 (RemainingRam - RxRam) & ~7;
2265 pAC->RxQueueSize = RxRam;
2266 pAC->TxSQueueSize = 0;
2267 pAC->TxAQueueSize = (RemainingRam - RxRam) & ~7;
2268 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2269 ("queue sizes settings - rx:%d txA:%d txS:%d\n",
2270 pAC->RxQueueSize,pAC->TxAQueueSize, pAC->TxSQueueSize));
2271
2272 for (i=0; i<SK_MAX_MACS; i++) {
2273 pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing;
2274 }
2275 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2276 pAC->RxPort[i].RxFillLimit = pAC->RxDescrPerRing - 100;
2277 }
2278 /*
2279 * Do not set the Limit to 0, because this could cause
2280 * wrap around with ReQueue'ed buffers (a buffer could
2281 * be requeued in the same position, made accessable to
2282 * the hardware, and the hardware could change its
2283 * contents!
2284 */
2285 pAC->RxPort[pAC->ActivePort].RxFillLimit = 1;
2286
2287 #ifdef DEBUG
2288 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2289 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_TX_PROGRESS,
2290 ("i: %d, RxQSize: %d, PXSQsize: %d, PXAQSize: %d\n",
2291 i,
2292 pAC->GIni.GP[i].PRxQSize,
2293 pAC->GIni.GP[i].PXSQSize,
2294 pAC->GIni.GP[i].PXAQSize));
2295 }
2296 #endif
2297 } /* SetQueueSizes */
2298
2299
2300 /*****************************************************************************
2301 *
2302 * SkGeSetMacAddr - Set the hardware MAC address
2303 *
2304 * Description:
2305 * This function sets the MAC address used by the adapter.
2306 *
2307 * Returns:
2308 * 0, if everything is ok
2309 * !=0, on error
2310 */
2311 static int SkGeSetMacAddr(struct net_device *dev, void *p)
2312 {
2313 SK_AC *pAC = (SK_AC*) dev->priv;
2314 struct sockaddr *addr = p;
2315 unsigned int Flags;
2316
2317 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2318 ("SkGeSetMacAddr starts now...\n"));
2319 if(netif_running(dev)) {
2320 return -EBUSY;
2321 }
2322 memcpy(dev->dev_addr, addr->sa_data,dev->addr_len);
2323
2324 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2325 SkAddrOverride(pAC, pAC->IoBase, pAC->ActivePort,
2326 (SK_MAC_ADDR*)dev->dev_addr, SK_ADDR_VIRTUAL_ADDRESS);
2327
2328 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2329 return 0;
2330 } /* SkGeSetMacAddr */
2331
2332
2333 /*****************************************************************************
2334 *
2335 * SkGeSetRxMode - set receive mode
2336 *
2337 * Description:
2338 * This function sets the receive mode of an adapter. The adapter
2339 * supports promiscuous mode, allmulticast mode and a number of
2340 * multicast addresses. If more multicast addresses the available
2341 * are selected, a hash function in the hardware is used.
2342 *
2343 * Returns:
2344 * 0, if everything is ok
2345 * !=0, on error
2346 */
2347 static void SkGeSetRxMode(struct net_device *dev)
2348 {
2349 SK_AC *pAC;
2350 struct dev_mc_list *pMcList;
2351 int i;
2352 unsigned int Flags;
2353
2354 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2355 ("SkGeSetRxMode starts now... "));
2356 pAC = (SK_AC*) dev->priv;
2357
2358 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2359 if (dev->flags & IFF_PROMISC) {
2360 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2361 ("PROMISCUOUS mode\n"));
2362 SkAddrPromiscuousChange(pAC, pAC->IoBase, pAC->ActivePort,
2363 SK_PROM_MODE_LLC);
2364 } else if (dev->flags & IFF_ALLMULTI) {
2365 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2366 ("ALLMULTI mode\n"));
2367 SkAddrPromiscuousChange(pAC, pAC->IoBase, pAC->ActivePort,
2368 SK_PROM_MODE_ALL_MC);
2369 } else {
2370 SkAddrPromiscuousChange(pAC, pAC->IoBase, pAC->ActivePort,
2371 SK_PROM_MODE_NONE);
2372 SkAddrMcClear(pAC, pAC->IoBase, pAC->ActivePort, 0);
2373
2374 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2375 ("Number of MC entries: %d ", dev->mc_count));
2376
2377 pMcList = dev->mc_list;
2378 for (i=0; i<dev->mc_count; i++, pMcList = pMcList->next) {
2379 SkAddrMcAdd(pAC, pAC->IoBase, pAC->ActivePort,
2380 (SK_MAC_ADDR*)pMcList->dmi_addr, 0);
2381 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_MCA,
2382 ("%02x:%02x:%02x:%02x:%02x:%02x\n",
2383 pMcList->dmi_addr[0],
2384 pMcList->dmi_addr[1],
2385 pMcList->dmi_addr[2],
2386 pMcList->dmi_addr[3],
2387 pMcList->dmi_addr[4],
2388 pMcList->dmi_addr[5]));
2389 }
2390 SkAddrMcUpdate(pAC, pAC->IoBase, pAC->ActivePort);
2391
2392 }
2393 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2394
2395 return;
2396 } /* SkGeSetRxMode */
2397
2398
2399 /*****************************************************************************
2400 *
2401 * SkGeChangeMtu - set the MTU to another value
2402 *
2403 * Description:
2404 * This function sets is called whenever the MTU size is changed
2405 * (ifconfig mtu xxx dev ethX). If the MTU is bigger than standard
2406 * ethernet MTU size, long frame support is activated.
2407 *
2408 * Returns:
2409 * 0, if everything is ok
2410 * !=0, on error
2411 */
2412 static int SkGeChangeMtu(struct net_device *dev, int NewMtu)
2413 {
2414 SK_AC *pAC;
2415 unsigned int Flags;
2416 int i;
2417 SK_EVPARA EvPara;
2418
2419 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2420 ("SkGeChangeMtu starts now...\n"));
2421
2422 pAC = (SK_AC*) dev->priv;
2423 if ((NewMtu < 68) || (NewMtu > SK_JUMBO_MTU)) {
2424 return -EINVAL;
2425 }
2426
2427 pAC->RxBufSize = NewMtu + 32;
2428 dev->mtu = NewMtu;
2429
2430 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2431 ("New MTU: %d\n", NewMtu));
2432
2433 /* prevent reconfiguration while changing the MTU */
2434
2435 /* disable interrupts */
2436 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
2437 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2438 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_STOP, EvPara);
2439 SkEventDispatcher(pAC, pAC->IoBase);
2440
2441 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2442 spin_lock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock);
2443 }
2444 netif_stop_queue(pAC->dev);
2445
2446 /*
2447 * adjust number of rx buffers allocated
2448 */
2449 if (NewMtu > 1500) {
2450 /* use less rx buffers */
2451 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2452 if (i == pAC->ActivePort)
2453 pAC->RxPort[i].RxFillLimit =
2454 pAC->RxDescrPerRing - 100;
2455 else
2456 pAC->RxPort[i].RxFillLimit =
2457 pAC->RxDescrPerRing - 10;
2458
2459 }
2460 }
2461 else {
2462 /* use normal anoumt of rx buffers */
2463 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2464 if (i == pAC->ActivePort)
2465 pAC->RxPort[i].RxFillLimit = 1;
2466 else
2467 pAC->RxPort[i].RxFillLimit =
2468 pAC->RxDescrPerRing - 100;
2469 }
2470 }
2471
2472 SkGeDeInit(pAC, pAC->IoBase);
2473
2474 /*
2475 * enable/disable hardware support for long frames
2476 */
2477 if (NewMtu > 1500) {
2478 pAC->GIni.GIPortUsage = SK_JUMBO_LINK;
2479 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2480 pAC->GIni.GP[i].PRxCmd =
2481 XM_RX_STRIP_FCS | XM_RX_LENERR_OK;
2482 }
2483 }
2484 else {
2485 pAC->GIni.GIPortUsage = SK_RED_LINK;
2486 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2487 pAC->GIni.GP[i].PRxCmd =
2488 XM_RX_STRIP_FCS | XM_RX_LENERR_OK;
2489 }
2490 }
2491
2492 SkGeInit( pAC, pAC->IoBase, 1);
2493 SkI2cInit( pAC, pAC->IoBase, 1);
2494 SkEventInit(pAC, pAC->IoBase, 1);
2495 SkPnmiInit( pAC, pAC->IoBase, 1);
2496 SkAddrInit( pAC, pAC->IoBase, 1);
2497 SkRlmtInit( pAC, pAC->IoBase, 1);
2498 SkTimerInit(pAC, pAC->IoBase, 1);
2499
2500 SkGeInit( pAC, pAC->IoBase, 2);
2501 SkI2cInit( pAC, pAC->IoBase, 2);
2502 SkEventInit(pAC, pAC->IoBase, 2);
2503 SkPnmiInit( pAC, pAC->IoBase, 2);
2504 SkAddrInit( pAC, pAC->IoBase, 2);
2505 SkRlmtInit( pAC, pAC->IoBase, 2);
2506 SkTimerInit(pAC, pAC->IoBase, 2);
2507
2508 /*
2509 * clear and reinit the rx rings here
2510 */
2511 for (i=0; i<pAC->GIni.GIMacsFound; i++) {
2512 ReceiveIrq(pAC, &pAC->RxPort[i]);
2513 ClearRxRing(pAC, &pAC->RxPort[i]);
2514 FillRxRing(pAC, &pAC->RxPort[i]);
2515
2516 // Enable transmit descriptor polling.
2517 SkGePollTxD(pAC, pAC->IoBase, i, SK_TRUE);
2518 FillRxRing(pAC, &pAC->RxPort[i]);
2519 };
2520
2521 SkGeYellowLED(pAC, pAC->IoBase, 1);
2522
2523 #ifdef USE_INT_MOD
2524 {
2525 unsigned long ModBase;
2526 ModBase = 53125000 / INTS_PER_SEC;
2527 SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase);
2528 SK_OUT32(pAC->IoBase, B2_IRQM_MSK, IRQ_MOD_MASK);
2529 SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_START);
2530 }
2531 #endif
2532
2533 netif_start_queue(pAC->dev);
2534 for (i=pAC->GIni.GIMacsFound-1; i>=0; i--) {
2535 spin_unlock(&pAC->TxPort[i][TX_PRIO_LOW].TxDesRingLock);
2536 }
2537
2538 /* enable Interrupts */
2539 SK_OUT32(pAC->IoBase, B0_IMSK, IRQ_MASK);
2540 SK_OUT32(pAC->IoBase, B0_HWE_IMSK, IRQ_HWE_MASK);
2541
2542 SkEventQueue(pAC, SKGE_RLMT, SK_RLMT_START, EvPara);
2543 SkEventDispatcher(pAC, pAC->IoBase);
2544
2545
2546 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2547
2548 return 0;
2549 } /* SkGeChangeMtu */
2550
2551
2552 /*****************************************************************************
2553 *
2554 * SkGeStats - return ethernet device statistics
2555 *
2556 * Description:
2557 * This function return statistic data about the ethernet device
2558 * to the operating system.
2559 *
2560 * Returns:
2561 * pointer to the statistic structure.
2562 */
2563 static struct net_device_stats *SkGeStats(struct net_device *dev)
2564 {
2565 SK_AC *pAC = (SK_AC*) dev->priv;
2566 SK_PNMI_STRUCT_DATA *pPnmiStruct; /* structure for all Pnmi-Data */
2567 SK_PNMI_STAT *pPnmiStat; /* pointer to virtual XMAC stat. data */SK_PNMI_CONF *pPnmiConf; /* pointer to virtual link config. */
2568 unsigned int Size; /* size of pnmi struct */
2569 unsigned int Flags; /* for spin lock */
2570
2571 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2572 ("SkGeStats starts now...\n"));
2573 pPnmiStruct = &pAC->PnmiStruct;
2574 memset(pPnmiStruct, 0, sizeof(SK_PNMI_STRUCT_DATA));
2575 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2576 Size = SK_PNMI_STRUCT_SIZE;
2577 SkPnmiGetStruct(pAC, pAC->IoBase, pPnmiStruct, &Size);
2578 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2579 pPnmiStat = &pPnmiStruct->Stat[0];
2580 pPnmiConf = &pPnmiStruct->Conf[0];
2581
2582 pAC->stats.rx_packets = (SK_U32) pPnmiStruct->RxDeliveredCts & 0xFFFFFFFF;
2583 pAC->stats.tx_packets = (SK_U32) pPnmiStat->StatTxOkCts & 0xFFFFFFFF;
2584 pAC->stats.rx_bytes = (SK_U32) pPnmiStruct->RxOctetsDeliveredCts;
2585 pAC->stats.tx_bytes = (SK_U32) pPnmiStat->StatTxOctetsOkCts;
2586 pAC->stats.rx_errors = (SK_U32) pPnmiStruct->InErrorsCts & 0xFFFFFFFF;
2587 pAC->stats.tx_errors = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
2588 pAC->stats.rx_dropped = (SK_U32) pPnmiStruct->RxNoBufCts & 0xFFFFFFFF;
2589 pAC->stats.tx_dropped = (SK_U32) pPnmiStruct->TxNoBufCts & 0xFFFFFFFF;
2590 pAC->stats.multicast = (SK_U32) pPnmiStat->StatRxMulticastOkCts & 0xFFFFFFFF;
2591 pAC->stats.collisions = (SK_U32) pPnmiStat->StatTxSingleCollisionCts & 0xFFFFFFFF;
2592
2593 /* detailed rx_errors: */
2594 pAC->stats.rx_length_errors = (SK_U32) pPnmiStat->StatRxRuntCts & 0xFFFFFFFF;
2595 pAC->stats.rx_over_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
2596 pAC->stats.rx_crc_errors = (SK_U32) pPnmiStat->StatRxFcsCts & 0xFFFFFFFF;
2597 pAC->stats.rx_frame_errors = (SK_U32) pPnmiStat->StatRxFramingCts & 0xFFFFFFFF;
2598 pAC->stats.rx_fifo_errors = (SK_U32) pPnmiStat->StatRxFifoOverflowCts & 0xFFFFFFFF;
2599 pAC->stats.rx_missed_errors = (SK_U32) pPnmiStat->StatRxMissedCts & 0xFFFFFFFF;
2600
2601 /* detailed tx_errors */
2602 pAC->stats.tx_aborted_errors = (SK_U32) 0;
2603 pAC->stats.tx_carrier_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
2604 pAC->stats.tx_fifo_errors = (SK_U32) pPnmiStat->StatTxFifoUnderrunCts & 0xFFFFFFFF;
2605 pAC->stats.tx_heartbeat_errors = (SK_U32) pPnmiStat->StatTxCarrierCts & 0xFFFFFFFF;
2606 pAC->stats.tx_window_errors = (SK_U32) 0;
2607
2608 return(&pAC->stats);
2609 } /* SkGeStats */
2610
2611
2612 /*****************************************************************************
2613 *
2614 * SkGeIoctl - IO-control function
2615 *
2616 * Description:
2617 * This function is called if an ioctl is issued on the device.
2618 * There are three subfunction for reading, writing and test-writing
2619 * the private MIB data structure (usefull for SysKonnect-internal tools).
2620 *
2621 * Returns:
2622 * 0, if everything is ok
2623 * !=0, on error
2624 */
2625 static int SkGeIoctl(struct net_device *dev, struct ifreq *rq, int cmd)
2626 {
2627 SK_AC *pAC;
2628 SK_GE_IOCTL Ioctl;
2629 unsigned int Err = 0;
2630 int Size;
2631
2632 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2633 ("SkGeIoctl starts now...\n"));
2634 pAC = (SK_AC*) dev->priv;
2635
2636 if(copy_from_user(&Ioctl, rq->ifr_data, sizeof(SK_GE_IOCTL))) {
2637 return -EFAULT;
2638 }
2639
2640 switch(cmd) {
2641 case SK_IOCTL_SETMIB:
2642 case SK_IOCTL_PRESETMIB:
2643 if (!capable(CAP_NET_ADMIN)) return -EPERM;
2644 case SK_IOCTL_GETMIB:
2645 if(copy_from_user(&pAC->PnmiStruct, Ioctl.pData,
2646 Ioctl.Len<sizeof(pAC->PnmiStruct)?
2647 Ioctl.Len : sizeof(pAC->PnmiStruct))) {
2648 return -EFAULT;
2649 }
2650 Size = SkGeIocMib(pAC, Ioctl.Len, cmd);
2651 if(copy_to_user(Ioctl.pData, &pAC->PnmiStruct,
2652 Ioctl.Len<Size? Ioctl.Len : Size)) {
2653 return -EFAULT;
2654 }
2655 Ioctl.Len = Size;
2656 if(copy_to_user(rq->ifr_data, &Ioctl, sizeof(SK_GE_IOCTL))) {
2657 return -EFAULT;
2658 }
2659 break;
2660 default:
2661 Err = -EOPNOTSUPP;
2662 }
2663 return(Err);
2664 } /* SkGeIoctl */
2665
2666
2667 /*****************************************************************************
2668 *
2669 * SkGeIocMib - handle a GetMib, SetMib- or PresetMib-ioctl message
2670 *
2671 * Description:
2672 * This function reads/writes the MIB data using PNMI (Private Network
2673 * Management Interface).
2674 * The destination for the data must be provided with the
2675 * ioctl call and is given to the driver in the form of
2676 * a user space address.
2677 * Copying from the user-provided data area into kernel messages
2678 * and back is done by copy_from_user and copy_to_user calls in
2679 * SkGeIoctl.
2680 *
2681 * Returns:
2682 * returned size from PNMI call
2683 */
2684 static int SkGeIocMib(
2685 SK_AC *pAC, /* pointer to the adapter context */
2686 unsigned int Size, /* length of ioctl data */
2687 int mode) /* flag for set/preset */
2688 {
2689 unsigned int Flags; /* for spin lock */
2690
2691 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2692 ("SkGeIocMib starts now...\n"));
2693 /* access MIB */
2694 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
2695 switch(mode) {
2696 case SK_IOCTL_GETMIB:
2697 SkPnmiGetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size);
2698 break;
2699 case SK_IOCTL_PRESETMIB:
2700 SkPnmiPreSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size);
2701 break;
2702 case SK_IOCTL_SETMIB:
2703 SkPnmiSetStruct(pAC, pAC->IoBase, &pAC->PnmiStruct, &Size);
2704 break;
2705 default:
2706 break;
2707 }
2708 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
2709 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ENTRY,
2710 ("MIB data access succeeded\n"));
2711 return (Size);
2712 } /* SkGeIocMib */
2713
2714
2715 /*****************************************************************************
2716 *
2717 * GetConfiguration - read configuration information
2718 *
2719 * Description:
2720 * This function reads per-adapter configuration information from
2721 * the options provided on the command line.
2722 *
2723 * Returns:
2724 * none
2725 */
2726 static void GetConfiguration(
2727 SK_AC *pAC) /* pointer to the adapter context structure */
2728 {
2729 SK_I32 Port; /* preferred port */
2730 int AutoNeg; /* auto negotiation off (0) or on (1) */
2731 int DuplexCap; /* duplex capabilities (0=both, 1=full, 2=half */
2732 int MSMode; /* master / slave mode selection */
2733 SK_BOOL AutoSet;
2734 SK_BOOL DupSet;
2735 /*
2736 * The two parameters AutoNeg. and DuplexCap. map to one configuration
2737 * parameter. The mapping is described by this table:
2738 * DuplexCap -> | both | full | half |
2739 * AutoNeg | | | |
2740 * -----------------------------------------------------------------
2741 * Off | illegal | Full | Half |
2742 * -----------------------------------------------------------------
2743 * On | AutoBoth | AutoFull | AutoHalf |
2744 * -----------------------------------------------------------------
2745 * Sense | AutoSense | AutoSense | AutoSense |
2746 */
2747 int Capabilities[3][3] =
2748 { { -1, SK_LMODE_FULL, SK_LMODE_HALF},
2749 {SK_LMODE_AUTOBOTH, SK_LMODE_AUTOFULL, SK_LMODE_AUTOHALF},
2750 {SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE, SK_LMODE_AUTOSENSE} };
2751 #define DC_BOTH 0
2752 #define DC_FULL 1
2753 #define DC_HALF 2
2754 #define AN_OFF 0
2755 #define AN_ON 1
2756 #define AN_SENS 2
2757
2758 /* settings for port A */
2759 AutoNeg = AN_SENS; /* default: do auto Sense */
2760 AutoSet = SK_FALSE;
2761 if (AutoNeg_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
2762 AutoNeg_A[pAC->Index] != NULL) {
2763 AutoSet = SK_TRUE;
2764 if (strcmp(AutoNeg_A[pAC->Index],"")==0) {
2765 AutoSet = SK_FALSE;
2766 }
2767 else if (strcmp(AutoNeg_A[pAC->Index],"On")==0) {
2768 AutoNeg = AN_ON;
2769 }
2770 else if (strcmp(AutoNeg_A[pAC->Index],"Off")==0) {
2771 AutoNeg = AN_OFF;
2772 }
2773 else if (strcmp(AutoNeg_A[pAC->Index],"Sense")==0) {
2774 AutoNeg = AN_SENS;
2775 }
2776 else printk("%s: Illegal value for AutoNeg_A\n",
2777 pAC->dev->name);
2778 }
2779
2780 DuplexCap = DC_BOTH;
2781 DupSet = SK_FALSE;
2782 if (DupCap_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
2783 DupCap_A[pAC->Index] != NULL) {
2784 DupSet = SK_TRUE;
2785 if (strcmp(DupCap_A[pAC->Index],"")==0) {
2786 DupSet = SK_FALSE;
2787 }
2788 else if (strcmp(DupCap_A[pAC->Index],"Both")==0) {
2789 DuplexCap = DC_BOTH;
2790 }
2791 else if (strcmp(DupCap_A[pAC->Index],"Full")==0) {
2792 DuplexCap = DC_FULL;
2793 }
2794 else if (strcmp(DupCap_A[pAC->Index],"Half")==0) {
2795 DuplexCap = DC_HALF;
2796 }
2797 else printk("%s: Illegal value for DupCap_A\n",
2798 pAC->dev->name);
2799 }
2800
2801 /* check for illegal combinations */
2802 if (AutoSet && AutoNeg==AN_SENS && DupSet) {
2803 printk("%s, Port A: DuplexCapabilities"
2804 " ignored using Sense mode\n", pAC->dev->name);
2805 }
2806 if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
2807 printk("%s, Port A: Illegal combination"
2808 " of values AutoNeg. and DuplexCap.\n Using "
2809 "Full Duplex\n", pAC->dev->name);
2810
2811 DuplexCap = DC_FULL;
2812 }
2813 if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
2814 DuplexCap = DC_FULL;
2815 }
2816
2817 if (!AutoSet && DupSet) {
2818 printk("%s, Port A: Duplex setting not"
2819 " possible in\n default AutoNegotiation mode"
2820 " (Sense).\n Using AutoNegotiation On\n",
2821 pAC->dev->name);
2822 AutoNeg = AN_ON;
2823 }
2824
2825 /* set the desired mode */
2826 pAC->GIni.GP[0].PLinkModeConf =
2827 Capabilities[AutoNeg][DuplexCap];
2828
2829 pAC->GIni.GP[0].PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
2830 if (FlowCtrl_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
2831 FlowCtrl_A[pAC->Index] != NULL) {
2832 if (strcmp(FlowCtrl_A[pAC->Index],"") == 0) {
2833 }
2834 else if (strcmp(FlowCtrl_A[pAC->Index],"SymOrRem") == 0) {
2835 pAC->GIni.GP[0].PFlowCtrlMode =
2836 SK_FLOW_MODE_SYM_OR_REM;
2837 }
2838 else if (strcmp(FlowCtrl_A[pAC->Index],"Sym")==0) {
2839 pAC->GIni.GP[0].PFlowCtrlMode =
2840 SK_FLOW_MODE_SYMMETRIC;
2841 }
2842 else if (strcmp(FlowCtrl_A[pAC->Index],"LocSend")==0) {
2843 pAC->GIni.GP[0].PFlowCtrlMode =
2844 SK_FLOW_MODE_LOC_SEND;
2845 }
2846 else if (strcmp(FlowCtrl_A[pAC->Index],"None")==0) {
2847 pAC->GIni.GP[0].PFlowCtrlMode =
2848 SK_FLOW_MODE_NONE;
2849 }
2850 else printk("Illegal value for FlowCtrl_A\n");
2851 }
2852 if (AutoNeg==AN_OFF && pAC->GIni.GP[0].PFlowCtrlMode!=
2853 SK_FLOW_MODE_NONE) {
2854 printk("%s, Port A: FlowControl"
2855 " impossible without AutoNegotiation,"
2856 " disabled\n", pAC->dev->name);
2857 pAC->GIni.GP[0].PFlowCtrlMode = SK_FLOW_MODE_NONE;
2858 }
2859
2860 MSMode = SK_MS_MODE_AUTO; /* default: do auto select */
2861 if (Role_A != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
2862 Role_A[pAC->Index] != NULL) {
2863 if (strcmp(Role_A[pAC->Index],"")==0) {
2864 }
2865 else if (strcmp(Role_A[pAC->Index],"Auto")==0) {
2866 MSMode = SK_MS_MODE_AUTO;
2867 }
2868 else if (strcmp(Role_A[pAC->Index],"Master")==0) {
2869 MSMode = SK_MS_MODE_MASTER;
2870 }
2871 else if (strcmp(Role_A[pAC->Index],"Slave")==0) {
2872 MSMode = SK_MS_MODE_SLAVE;
2873 }
2874 else printk("%s: Illegal value for Role_A\n",
2875 pAC->dev->name);
2876 }
2877 pAC->GIni.GP[0].PMSMode = MSMode;
2878
2879
2880 /* settings for port B */
2881 AutoNeg = AN_SENS; /* default: do auto Sense */
2882 AutoSet = SK_FALSE;
2883 if (AutoNeg_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
2884 AutoNeg_B[pAC->Index] != NULL) {
2885 AutoSet = SK_TRUE;
2886 if (strcmp(AutoNeg_B[pAC->Index],"")==0) {
2887 AutoSet = SK_FALSE;
2888 }
2889 else if (strcmp(AutoNeg_B[pAC->Index],"On")==0) {
2890 AutoNeg = AN_ON;
2891 }
2892 else if (strcmp(AutoNeg_B[pAC->Index],"Off")==0) {
2893 AutoNeg = AN_OFF;
2894 }
2895 else if (strcmp(AutoNeg_B[pAC->Index],"Sense")==0) {
2896 AutoNeg = AN_SENS;
2897 }
2898 else printk("Illegal value for AutoNeg_B\n");
2899 }
2900
2901 DuplexCap = DC_BOTH;
2902 DupSet = SK_FALSE;
2903 if (DupCap_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
2904 DupCap_B[pAC->Index] != NULL) {
2905 DupSet = SK_TRUE;
2906 if (strcmp(DupCap_B[pAC->Index],"")==0) {
2907 DupSet = SK_FALSE;
2908 }
2909 else if (strcmp(DupCap_B[pAC->Index],"Both")==0) {
2910 DuplexCap = DC_BOTH;
2911 }
2912 else if (strcmp(DupCap_B[pAC->Index],"Full")==0) {
2913 DuplexCap = DC_FULL;
2914 }
2915 else if (strcmp(DupCap_B[pAC->Index],"Half")==0) {
2916 DuplexCap = DC_HALF;
2917 }
2918 else printk("Illegal value for DupCap_B\n");
2919 }
2920
2921 /* check for illegal combinations */
2922 if (AutoSet && AutoNeg==AN_SENS && DupSet) {
2923 printk("%s, Port B: DuplexCapabilities"
2924 " ignored using Sense mode\n", pAC->dev->name);
2925 }
2926 if (AutoSet && AutoNeg==AN_OFF && DupSet && DuplexCap==DC_BOTH){
2927 printk("%s, Port B: Illegal combination"
2928 " of values AutoNeg. and DuplexCap.\n Using "
2929 "Full Duplex\n", pAC->dev->name);
2930
2931 DuplexCap = DC_FULL;
2932 }
2933 if (AutoSet && AutoNeg==AN_OFF && !DupSet) {
2934 DuplexCap = DC_FULL;
2935 }
2936
2937 if (!AutoSet && DupSet) {
2938 printk("%s, Port B: Duplex setting not"
2939 " possible in\n default AutoNegotiation mode"
2940 " (Sense).\n Using AutoNegotiation On\n",
2941 pAC->dev->name);
2942 AutoNeg = AN_ON;
2943 }
2944
2945 /* set the desired mode */
2946 pAC->GIni.GP[1].PLinkModeConf =
2947 Capabilities[AutoNeg][DuplexCap];
2948
2949 pAC->GIni.GP[1].PFlowCtrlMode = SK_FLOW_MODE_SYM_OR_REM;
2950 if (FlowCtrl_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
2951 FlowCtrl_B[pAC->Index] != NULL) {
2952 if (strcmp(FlowCtrl_B[pAC->Index],"") == 0) {
2953 }
2954 else if (strcmp(FlowCtrl_B[pAC->Index],"SymOrRem") == 0) {
2955 pAC->GIni.GP[1].PFlowCtrlMode =
2956 SK_FLOW_MODE_SYM_OR_REM;
2957 }
2958 else if (strcmp(FlowCtrl_B[pAC->Index],"Sym")==0) {
2959 pAC->GIni.GP[1].PFlowCtrlMode =
2960 SK_FLOW_MODE_SYMMETRIC;
2961 }
2962 else if (strcmp(FlowCtrl_B[pAC->Index],"LocSend")==0) {
2963 pAC->GIni.GP[1].PFlowCtrlMode =
2964 SK_FLOW_MODE_LOC_SEND;
2965 }
2966 else if (strcmp(FlowCtrl_B[pAC->Index],"None")==0) {
2967 pAC->GIni.GP[1].PFlowCtrlMode =
2968 SK_FLOW_MODE_NONE;
2969 }
2970 else printk("Illegal value for FlowCtrl_B\n");
2971 }
2972 if (AutoNeg==AN_OFF && pAC->GIni.GP[1].PFlowCtrlMode!=
2973 SK_FLOW_MODE_NONE) {
2974 printk("%s, Port B: FlowControl"
2975 " impossible without AutoNegotiation,"
2976 " disabled\n", pAC->dev->name);
2977 pAC->GIni.GP[1].PFlowCtrlMode = SK_FLOW_MODE_NONE;
2978 }
2979
2980 MSMode = SK_MS_MODE_AUTO; /* default: do auto select */
2981 if (Role_B != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
2982 Role_B[pAC->Index] != NULL) {
2983 if (strcmp(Role_B[pAC->Index],"")==0) {
2984 }
2985 else if (strcmp(Role_B[pAC->Index],"Auto")==0) {
2986 MSMode = SK_MS_MODE_AUTO;
2987 }
2988 else if (strcmp(Role_B[pAC->Index],"Master")==0) {
2989 MSMode = SK_MS_MODE_MASTER;
2990 }
2991 else if (strcmp(Role_B[pAC->Index],"Slave")==0) {
2992 MSMode = SK_MS_MODE_SLAVE;
2993 }
2994 else printk("%s: Illegal value for Role_B\n",
2995 pAC->dev->name);
2996 }
2997 pAC->GIni.GP[1].PMSMode = MSMode;
2998
2999
3000 /* settings for both ports */
3001 pAC->ActivePort = 0;
3002 if (PrefPort != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3003 PrefPort[pAC->Index] != NULL) {
3004 if (strcmp(PrefPort[pAC->Index],"") == 0) { /* Auto */
3005 pAC->ActivePort = 0;
3006 pAC->Rlmt.MacPreferred = -1; /* auto */
3007 pAC->Rlmt.PrefPort = 0;
3008 }
3009 else if (strcmp(PrefPort[pAC->Index],"A") == 0) {
3010 /*
3011 * do not set ActivePort here, thus a port
3012 * switch is issued after net up.
3013 */
3014 Port = 0;
3015 pAC->Rlmt.MacPreferred = Port;
3016 pAC->Rlmt.PrefPort = Port;
3017 }
3018 else if (strcmp(PrefPort[pAC->Index],"B") == 0) {
3019 /*
3020 * do not set ActivePort here, thus a port
3021 * switch is issued after net up.
3022 */
3023 Port = 1;
3024 pAC->Rlmt.MacPreferred = Port;
3025 pAC->Rlmt.PrefPort = Port;
3026 }
3027 else printk("%s: Illegal value for PrefPort\n",
3028 pAC->dev->name);
3029 }
3030
3031 if (RlmtMode != NULL && pAC->Index<SK_MAX_CARD_PARAM &&
3032 RlmtMode[pAC->Index] != NULL) {
3033 if (strcmp(RlmtMode[pAC->Index], "") == 0) {
3034 pAC->RlmtMode = 0;
3035 }
3036 else if (strcmp(RlmtMode[pAC->Index], "CheckLinkState") == 0) {
3037 pAC->RlmtMode = SK_RLMT_CHECK_LINK;
3038 }
3039 else if (strcmp(RlmtMode[pAC->Index], "CheckLocalPort") == 0) {
3040 pAC->RlmtMode = SK_RLMT_CHECK_LINK |
3041 SK_RLMT_CHECK_LOC_LINK;
3042 }
3043 else if (strcmp(RlmtMode[pAC->Index], "CheckSeg") == 0) {
3044 pAC->RlmtMode = SK_RLMT_CHECK_LINK |
3045 SK_RLMT_CHECK_LOC_LINK |
3046 SK_RLMT_CHECK_SEG;
3047 }
3048 else {
3049 printk("%s: Illegal value for"
3050 " RlmtMode, using default\n", pAC->dev->name);
3051 pAC->RlmtMode = 0;
3052 }
3053 }
3054 else {
3055 pAC->RlmtMode = 0;
3056 }
3057 } /* GetConfiguration */
3058
3059
3060 /*****************************************************************************
3061 *
3062 * ProductStr - return a adapter identification string from vpd
3063 *
3064 * Description:
3065 * This function reads the product name string from the vpd area
3066 * and puts it the field pAC->DeviceString.
3067 *
3068 * Returns: N/A
3069 */
3070 static void ProductStr(
3071 SK_AC *pAC /* pointer to adapter context */
3072 )
3073 {
3074 int StrLen = 80; /* length of the string, defined in SK_AC */
3075 char Keyword[] = VPD_NAME; /* vpd productname identifier */
3076 int ReturnCode; /* return code from vpd_read */
3077 unsigned int Flags;
3078
3079 spin_lock_irqsave(&pAC->SlowPathLock, Flags);
3080 ReturnCode = VpdRead(pAC, pAC->IoBase, Keyword, pAC->DeviceStr,
3081 &StrLen);
3082 spin_unlock_irqrestore(&pAC->SlowPathLock, Flags);
3083 if (ReturnCode != 0) {
3084 /* there was an error reading the vpd data */
3085 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_ERROR,
3086 ("Error reading VPD data: %d\n", ReturnCode));
3087 pAC->DeviceStr[0] = '\0';
3088 }
3089 } /* ProductStr */
3090
3091
3092
3093
3094 /****************************************************************************/
3095 /* functions for common modules *********************************************/
3096 /****************************************************************************/
3097
3098
3099 /*****************************************************************************
3100 *
3101 * SkDrvAllocRlmtMbuf - allocate an RLMT mbuf
3102 *
3103 * Description:
3104 * This routine returns an RLMT mbuf or NULL. The RLMT Mbuf structure
3105 * is embedded into a socket buff data area.
3106 *
3107 * Context:
3108 * runtime
3109 *
3110 * Returns:
3111 * NULL or pointer to Mbuf.
3112 */
3113 SK_MBUF *SkDrvAllocRlmtMbuf(
3114 SK_AC *pAC, /* pointer to adapter context */
3115 SK_IOC IoC, /* the IO-context */
3116 unsigned BufferSize) /* size of the requested buffer */
3117 {
3118 SK_MBUF *pRlmtMbuf; /* pointer to a new rlmt-mbuf structure */
3119 struct sk_buff *pMsgBlock; /* pointer to a new message block */
3120
3121 pMsgBlock = alloc_skb(BufferSize + sizeof(SK_MBUF), GFP_ATOMIC);
3122 if (pMsgBlock == NULL) {
3123 return (NULL);
3124 }
3125 pRlmtMbuf = (SK_MBUF*) pMsgBlock->data;
3126 skb_reserve(pMsgBlock, sizeof(SK_MBUF));
3127 pRlmtMbuf->pNext = NULL;
3128 pRlmtMbuf->pOs = pMsgBlock;
3129 pRlmtMbuf->pData = pMsgBlock->data; /* Data buffer. */
3130 pRlmtMbuf->Size = BufferSize; /* Data buffer size. */
3131 pRlmtMbuf->Length = 0; /* Length of packet (<= Size). */
3132 return (pRlmtMbuf);
3133
3134 } /* SkDrvAllocRlmtMbuf */
3135
3136
3137 /*****************************************************************************
3138 *
3139 * SkDrvFreeRlmtMbuf - free an RLMT mbuf
3140 *
3141 * Description:
3142 * This routine frees one or more RLMT mbuf(s).
3143 *
3144 * Context:
3145 * runtime
3146 *
3147 * Returns:
3148 * Nothing
3149 */
3150 void SkDrvFreeRlmtMbuf(
3151 SK_AC *pAC, /* pointer to adapter context */
3152 SK_IOC IoC, /* the IO-context */
3153 SK_MBUF *pMbuf) /* size of the requested buffer */
3154 {
3155 SK_MBUF *pFreeMbuf;
3156 SK_MBUF *pNextMbuf;
3157
3158 pFreeMbuf = pMbuf;
3159 do {
3160 pNextMbuf = pFreeMbuf->pNext;
3161 DEV_KFREE_SKB_ANY(pFreeMbuf->pOs);
3162 pFreeMbuf = pNextMbuf;
3163 } while ( pFreeMbuf != NULL );
3164 } /* SkDrvFreeRlmtMbuf */
3165
3166
3167 /*****************************************************************************
3168 *
3169 * SkOsGetTime - provide a time value
3170 *
3171 * Description:
3172 * This routine provides a time value. The unit is 1/HZ (defined by Linux).
3173 * It is not used for absolute time, but only for time differences.
3174 *
3175 *
3176 * Returns:
3177 * Time value
3178 */
3179 SK_U64 SkOsGetTime(SK_AC *pAC)
3180 {
3181 return jiffies;
3182 } /* SkOsGetTime */
3183
3184
3185 /*****************************************************************************
3186 *
3187 * SkPciReadCfgDWord - read a 32 bit value from pci config space
3188 *
3189 * Description:
3190 * This routine reads a 32 bit value from the pci configuration
3191 * space.
3192 *
3193 * Returns:
3194 * 0 - indicate everything worked ok.
3195 * != 0 - error indication
3196 */
3197 int SkPciReadCfgDWord(
3198 SK_AC *pAC, /* Adapter Control structure pointer */
3199 int PciAddr, /* PCI register address */
3200 SK_U32 *pVal) /* pointer to store the read value */
3201 {
3202 pci_read_config_dword(&pAC->PciDev, PciAddr, pVal);
3203 return(0);
3204 } /* SkPciReadCfgDWord */
3205
3206
3207 /*****************************************************************************
3208 *
3209 * SkPciReadCfgWord - read a 16 bit value from pci config space
3210 *
3211 * Description:
3212 * This routine reads a 16 bit value from the pci configuration
3213 * space.
3214 *
3215 * Returns:
3216 * 0 - indicate everything worked ok.
3217 * != 0 - error indication
3218 */
3219 int SkPciReadCfgWord(
3220 SK_AC *pAC, /* Adapter Control structure pointer */
3221 int PciAddr, /* PCI register address */
3222 SK_U16 *pVal) /* pointer to store the read value */
3223 {
3224 pci_read_config_word(&pAC->PciDev, PciAddr, pVal);
3225 return(0);
3226 } /* SkPciReadCfgWord */
3227
3228
3229 /*****************************************************************************
3230 *
3231 * SkPciReadCfgByte - read a 8 bit value from pci config space
3232 *
3233 * Description:
3234 * This routine reads a 8 bit value from the pci configuration
3235 * space.
3236 *
3237 * Returns:
3238 * 0 - indicate everything worked ok.
3239 * != 0 - error indication
3240 */
3241 int SkPciReadCfgByte(
3242 SK_AC *pAC, /* Adapter Control structure pointer */
3243 int PciAddr, /* PCI register address */
3244 SK_U8 *pVal) /* pointer to store the read value */
3245 {
3246 pci_read_config_byte(&pAC->PciDev, PciAddr, pVal);
3247 return(0);
3248 } /* SkPciReadCfgByte */
3249
3250
3251 /*****************************************************************************
3252 *
3253 * SkPciWriteCfgDWord - write a 32 bit value to pci config space
3254 *
3255 * Description:
3256 * This routine writes a 32 bit value to the pci configuration
3257 * space.
3258 *
3259 * Returns:
3260 * 0 - indicate everything worked ok.
3261 * != 0 - error indication
3262 */
3263 int SkPciWriteCfgDWord(
3264 SK_AC *pAC, /* Adapter Control structure pointer */
3265 int PciAddr, /* PCI register address */
3266 SK_U32 Val) /* pointer to store the read value */
3267 {
3268 pci_write_config_dword(&pAC->PciDev, PciAddr, Val);
3269 return(0);
3270 } /* SkPciWriteCfgDWord */
3271
3272
3273 /*****************************************************************************
3274 *
3275 * SkPciWriteCfgWord - write a 16 bit value to pci config space
3276 *
3277 * Description:
3278 * This routine writes a 16 bit value to the pci configuration
3279 * space. The flag PciConfigUp indicates whether the config space
3280 * is accesible or must be set up first.
3281 *
3282 * Returns:
3283 * 0 - indicate everything worked ok.
3284 * != 0 - error indication
3285 */
3286 int SkPciWriteCfgWord(
3287 SK_AC *pAC, /* Adapter Control structure pointer */
3288 int PciAddr, /* PCI register address */
3289 SK_U16 Val) /* pointer to store the read value */
3290 {
3291 pci_write_config_word(&pAC->PciDev, PciAddr, Val);
3292 return(0);
3293 } /* SkPciWriteCfgWord */
3294
3295
3296 /*****************************************************************************
3297 *
3298 * SkPciWriteCfgWord - write a 8 bit value to pci config space
3299 *
3300 * Description:
3301 * This routine writes a 8 bit value to the pci configuration
3302 * space. The flag PciConfigUp indicates whether the config space
3303 * is accesible or must be set up first.
3304 *
3305 * Returns:
3306 * 0 - indicate everything worked ok.
3307 * != 0 - error indication
3308 */
3309 int SkPciWriteCfgByte(
3310 SK_AC *pAC, /* Adapter Control structure pointer */
3311 int PciAddr, /* PCI register address */
3312 SK_U8 Val) /* pointer to store the read value */
3313 {
3314 pci_write_config_byte(&pAC->PciDev, PciAddr, Val);
3315 return(0);
3316 } /* SkPciWriteCfgByte */
3317
3318
3319 /*****************************************************************************
3320 *
3321 * SkDrvEvent - handle driver events
3322 *
3323 * Description:
3324 * This function handles events from all modules directed to the driver
3325 *
3326 * Context:
3327 * Is called under protection of slow path lock.
3328 *
3329 * Returns:
3330 * 0 if everything ok
3331 * < 0 on error
3332 *
3333 */
3334 int SkDrvEvent(
3335 SK_AC *pAC, /* pointer to adapter context */
3336 SK_IOC IoC, /* io-context */
3337 SK_U32 Event, /* event-id */
3338 SK_EVPARA Param) /* event-parameter */
3339 {
3340 SK_MBUF *pRlmtMbuf; /* pointer to a rlmt-mbuf structure */
3341 struct sk_buff *pMsg; /* pointer to a message block */
3342 int FromPort; /* the port from which we switch away */
3343 int ToPort; /* the port we switch to */
3344 SK_EVPARA NewPara; /* parameter for further events */
3345 int Stat;
3346 unsigned int Flags;
3347
3348 switch (Event) {
3349 case SK_DRV_ADAP_FAIL:
3350 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
3351 ("ADAPTER FAIL EVENT\n"));
3352 printk("%s: Adapter failed.\n", pAC->dev->name);
3353 /* disable interrupts */
3354 SK_OUT32(pAC->IoBase, B0_IMSK, 0);
3355 /* cgoos */
3356 break;
3357 case SK_DRV_PORT_FAIL:
3358 FromPort = Param.Para32[0];
3359 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
3360 ("PORT FAIL EVENT, Port: %d\n", FromPort));
3361 if (FromPort == 0) {
3362 printk("%s: Port A failed.\n", pAC->dev->name);
3363 } else {
3364 printk("%s: Port B failed.\n", pAC->dev->name);
3365 }
3366 /* cgoos */
3367 break;
3368 case SK_DRV_PORT_RESET: /* SK_U32 PortIdx */
3369 /* action list 4 */
3370 FromPort = Param.Para32[0];
3371 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
3372 ("PORT RESET EVENT, Port: %d ", FromPort));
3373 NewPara.Para64 = FromPort;
3374 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
3375 spin_lock_irqsave(
3376 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
3377 Flags);
3378 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_HARD_RST);
3379 spin_unlock_irqrestore(
3380 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
3381 Flags);
3382
3383 /* clear rx ring from received frames */
3384 ReceiveIrq(pAC, &pAC->RxPort[FromPort]);
3385
3386 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
3387 spin_lock_irqsave(
3388 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
3389 Flags);
3390 SkGeInitPort(pAC, IoC, FromPort);
3391 SkAddrMcUpdate(pAC,IoC, FromPort);
3392 PortReInitBmu(pAC, FromPort);
3393 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
3394 ClearAndStartRx(pAC, FromPort);
3395 spin_unlock_irqrestore(
3396 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
3397 Flags);
3398 break;
3399 case SK_DRV_NET_UP: /* SK_U32 PortIdx */
3400 /* action list 5 */
3401 FromPort = Param.Para32[0];
3402 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
3403 ("NET UP EVENT, Port: %d ", Param.Para32[0]));
3404 printk("%s: network connection up using"
3405 " port %c\n", pAC->dev->name, 'A'+Param.Para32[0]);
3406 printk(" speed: 1000\n");
3407 Stat = pAC->GIni.GP[FromPort].PLinkModeStatus;
3408 if (Stat == SK_LMODE_STAT_AUTOHALF ||
3409 Stat == SK_LMODE_STAT_AUTOFULL) {
3410 printk(" autonegotiation: yes\n");
3411 }
3412 else {
3413 printk(" autonegotiation: no\n");
3414 }
3415 if (Stat == SK_LMODE_STAT_AUTOHALF ||
3416 Stat == SK_LMODE_STAT_HALF) {
3417 printk(" duplex mode: half\n");
3418 }
3419 else {
3420 printk(" duplex mode: full\n");
3421 }
3422 Stat = pAC->GIni.GP[FromPort].PFlowCtrlStatus;
3423 if (Stat == SK_FLOW_STAT_REM_SEND ) {
3424 printk(" flowctrl: remote send\n");
3425 }
3426 else if (Stat == SK_FLOW_STAT_LOC_SEND ){
3427 printk(" flowctrl: local send\n");
3428 }
3429 else if (Stat == SK_FLOW_STAT_SYMMETRIC ){
3430 printk(" flowctrl: symmetric\n");
3431 }
3432 else {
3433 printk(" flowctrl: none\n");
3434 }
3435 if (pAC->GIni.GP[FromPort].PhyType != SK_PHY_XMAC) {
3436 Stat = pAC->GIni.GP[FromPort].PMSStatus;
3437 if (Stat == SK_MS_STAT_MASTER ) {
3438 printk(" role: master\n");
3439 }
3440 else if (Stat == SK_MS_STAT_SLAVE ) {
3441 printk(" role: slave\n");
3442 }
3443 else {
3444 printk(" role: ???\n");
3445 }
3446 }
3447
3448 if (Param.Para32[0] != pAC->ActivePort) {
3449 NewPara.Para32[0] = pAC->ActivePort;
3450 NewPara.Para32[1] = Param.Para32[0];
3451 SkEventQueue(pAC, SKGE_DRV, SK_DRV_SWITCH_INTERN,
3452 NewPara);
3453 }
3454 break;
3455 case SK_DRV_NET_DOWN: /* SK_U32 Reason */
3456 /* action list 7 */
3457 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
3458 ("NET DOWN EVENT "));
3459 printk("%s: network connection down\n", pAC->dev->name);
3460 break;
3461 case SK_DRV_SWITCH_HARD: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
3462 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
3463 ("PORT SWITCH HARD "));
3464 case SK_DRV_SWITCH_SOFT: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
3465 /* action list 6 */
3466 printk("%s: switching to port %c\n", pAC->dev->name,
3467 'A'+Param.Para32[1]);
3468 case SK_DRV_SWITCH_INTERN: /* SK_U32 FromPortIdx SK_U32 ToPortIdx */
3469 FromPort = Param.Para32[0];
3470 ToPort = Param.Para32[1];
3471 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
3472 ("PORT SWITCH EVENT, From: %d To: %d (Pref %d) ",
3473 FromPort, ToPort, pAC->Rlmt.PrefPort));
3474 NewPara.Para64 = FromPort;
3475 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
3476 NewPara.Para64 = ToPort;
3477 SkPnmiEvent(pAC, IoC, SK_PNMI_EVT_XMAC_RESET, NewPara);
3478 spin_lock_irqsave(
3479 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
3480 Flags);
3481 spin_lock_irqsave(
3482 &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
3483 SkGeStopPort(pAC, IoC, FromPort, SK_STOP_ALL, SK_SOFT_RST);
3484 SkGeStopPort(pAC, IoC, ToPort, SK_STOP_ALL, SK_SOFT_RST);
3485 spin_unlock_irqrestore(
3486 &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
3487 spin_unlock_irqrestore(
3488 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
3489 Flags);
3490
3491 ReceiveIrq(pAC, &pAC->RxPort[FromPort]); /* clears rx ring */
3492 ReceiveIrq(pAC, &pAC->RxPort[ToPort]); /* clears rx ring */
3493
3494 ClearTxRing(pAC, &pAC->TxPort[FromPort][TX_PRIO_LOW]);
3495 ClearTxRing(pAC, &pAC->TxPort[ToPort][TX_PRIO_LOW]);
3496 spin_lock_irqsave(
3497 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
3498 Flags);
3499 spin_lock_irqsave(
3500 &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
3501 pAC->ActivePort = ToPort;
3502 SetQueueSizes(pAC);
3503 SkGeInitPort(pAC, IoC, FromPort);
3504 SkGeInitPort(pAC, IoC, ToPort);
3505 if (Event == SK_DRV_SWITCH_SOFT) {
3506 SkXmRxTxEnable(pAC, IoC, FromPort);
3507 }
3508 SkXmRxTxEnable(pAC, IoC, ToPort);
3509 SkAddrSwap(pAC, IoC, FromPort, ToPort);
3510 SkAddrMcUpdate(pAC, IoC, FromPort);
3511 SkAddrMcUpdate(pAC, IoC, ToPort);
3512 PortReInitBmu(pAC, FromPort);
3513 PortReInitBmu(pAC, ToPort);
3514 SkGePollTxD(pAC, IoC, FromPort, SK_TRUE);
3515 SkGePollTxD(pAC, IoC, ToPort, SK_TRUE);
3516 ClearAndStartRx(pAC, FromPort);
3517 ClearAndStartRx(pAC, ToPort);
3518 spin_unlock_irqrestore(
3519 &pAC->TxPort[ToPort][TX_PRIO_LOW].TxDesRingLock, Flags);
3520 spin_unlock_irqrestore(
3521 &pAC->TxPort[FromPort][TX_PRIO_LOW].TxDesRingLock,
3522 Flags);
3523 break;
3524 case SK_DRV_RLMT_SEND: /* SK_MBUF *pMb */
3525 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
3526 ("RLS "));
3527 pRlmtMbuf = (SK_MBUF*) Param.pParaPtr;
3528 pMsg = (struct sk_buff*) pRlmtMbuf->pOs;
3529 skb_put(pMsg, pRlmtMbuf->Length);
3530 if (XmitFrame(pAC, &pAC->TxPort[pRlmtMbuf->PortIdx][TX_PRIO_LOW],
3531 pMsg) < 0)
3532 DEV_KFREE_SKB_ANY(pMsg);
3533 break;
3534 default:
3535 break;
3536 }
3537 SK_DBG_MSG(NULL, SK_DBGMOD_DRV, SK_DBGCAT_DRV_EVENT,
3538 ("END EVENT "));
3539
3540 return (0);
3541 } /* SkDrvEvent */
3542
3543
3544 /*****************************************************************************
3545 *
3546 * SkErrorLog - log errors
3547 *
3548 * Description:
3549 * This function logs errors to the system buffer and to the console
3550 *
3551 * Returns:
3552 * 0 if everything ok
3553 * < 0 on error
3554 *
3555 */
3556 void SkErrorLog(
3557 SK_AC *pAC,
3558 int ErrClass,
3559 int ErrNum,
3560 char *pErrorMsg)
3561 {
3562 char ClassStr[80];
3563
3564 switch (ErrClass) {
3565 case SK_ERRCL_OTHER:
3566 strcpy(ClassStr, "Other error");
3567 break;
3568 case SK_ERRCL_CONFIG:
3569 strcpy(ClassStr, "Configuration error");
3570 break;
3571 case SK_ERRCL_INIT:
3572 strcpy(ClassStr, "Initialization error");
3573 break;
3574 case SK_ERRCL_NORES:
3575 strcpy(ClassStr, "Out of resources error");
3576 break;
3577 case SK_ERRCL_SW:
3578 strcpy(ClassStr, "internal Software error");
3579 break;
3580 case SK_ERRCL_HW:
3581 strcpy(ClassStr, "Hardware failure");
3582 break;
3583 case SK_ERRCL_COMM:
3584 strcpy(ClassStr, "Communication error");
3585 break;
3586 }
3587 printk(KERN_INFO "%s: -- ERROR --\n Class: %s\n"
3588 " Nr: 0x%x\n Msg: %s\n", pAC->dev->name,
3589 ClassStr, ErrNum, pErrorMsg);
3590
3591 } /* SkErrorLog */
3592
3593 #ifdef DEBUG /***************************************************************/
3594 /* "debug only" section *****************************************************/
3595 /****************************************************************************/
3596
3597
3598 /*****************************************************************************
3599 *
3600 * DumpMsg - print a frame
3601 *
3602 * Description:
3603 * This function prints frames to the system logfile/to the console.
3604 *
3605 * Returns: N/A
3606 *
3607 */
3608 static void DumpMsg(struct sk_buff *skb, char *str)
3609 {
3610 int msglen;
3611
3612 if (skb == NULL) {
3613 printk("DumpMsg(): NULL-Message\n");
3614 return;
3615 }
3616
3617 if (skb->data == NULL) {
3618 printk("DumpMsg(): Message empty\n");
3619 return;
3620 }
3621
3622 msglen = skb->len;
3623 if (msglen > 64)
3624 msglen = 64;
3625
3626 printk("--- Begin of message from %s , len %d (from %d) ----\n", str, msglen, skb->len);
3627
3628 DumpData((char *)skb->data, msglen);
3629
3630 printk("------- End of message ---------\n");
3631 } /* DumpMsg */
3632
3633
3634
3635 /*****************************************************************************
3636 *
3637 * DumpData - print a data area
3638 *
3639 * Description:
3640 * This function prints a area of data to the system logfile/to the
3641 * console.
3642 *
3643 * Returns: N/A
3644 *
3645 */
3646 static void DumpData(char *p, int size)
3647 {
3648 register int i;
3649 int haddr, addr;
3650 char hex_buffer[180];
3651 char asc_buffer[180];
3652 char HEXCHAR[] = "0123456789ABCDEF";
3653
3654 addr = 0;
3655 haddr = 0;
3656 hex_buffer[0] = 0;
3657 asc_buffer[0] = 0;
3658 for (i=0; i < size; ) {
3659 if (*p >= '0' && *p <='z')
3660 asc_buffer[addr] = *p;
3661 else
3662 asc_buffer[addr] = '.';
3663 addr++;
3664 asc_buffer[addr] = 0;
3665 hex_buffer[haddr] = HEXCHAR[(*p & 0xf0) >> 4];
3666 haddr++;
3667 hex_buffer[haddr] = HEXCHAR[*p & 0x0f];
3668 haddr++;
3669 hex_buffer[haddr] = ' ';
3670 haddr++;
3671 hex_buffer[haddr] = 0;
3672 p++;
3673 i++;
3674 if (i%16 == 0) {
3675 printk("%s %s\n", hex_buffer, asc_buffer);
3676 addr = 0;
3677 haddr = 0;
3678 }
3679 }
3680 } /* DumpData */
3681
3682
3683 /*****************************************************************************
3684 *
3685 * DumpLong - print a data area as long values
3686 *
3687 * Description:
3688 * This function prints a area of data to the system logfile/to the
3689 * console.
3690 *
3691 * Returns: N/A
3692 *
3693 */
3694 static void DumpLong(char *pc, int size)
3695 {
3696 register int i;
3697 int haddr, addr;
3698 char hex_buffer[180];
3699 char asc_buffer[180];
3700 char HEXCHAR[] = "0123456789ABCDEF";
3701 long *p;
3702 int l;
3703
3704 addr = 0;
3705 haddr = 0;
3706 hex_buffer[0] = 0;
3707 asc_buffer[0] = 0;
3708 p = (long*) pc;
3709 for (i=0; i < size; ) {
3710 l = (long) *p;
3711 hex_buffer[haddr] = HEXCHAR[(l >> 28) & 0xf];
3712 haddr++;
3713 hex_buffer[haddr] = HEXCHAR[(l >> 24) & 0xf];
3714 haddr++;
3715 hex_buffer[haddr] = HEXCHAR[(l >> 20) & 0xf];
3716 haddr++;
3717 hex_buffer[haddr] = HEXCHAR[(l >> 16) & 0xf];
3718 haddr++;
3719 hex_buffer[haddr] = HEXCHAR[(l >> 12) & 0xf];
3720 haddr++;
3721 hex_buffer[haddr] = HEXCHAR[(l >> 8) & 0xf];
3722 haddr++;
3723 hex_buffer[haddr] = HEXCHAR[(l >> 4) & 0xf];
3724 haddr++;
3725 hex_buffer[haddr] = HEXCHAR[l & 0x0f];
3726 haddr++;
3727 hex_buffer[haddr] = ' ';
3728 haddr++;
3729 hex_buffer[haddr] = 0;
3730 p++;
3731 i++;
3732 if (i%8 == 0) {
3733 printk("%4x %s\n", (i-8)*4, hex_buffer);
3734 haddr = 0;
3735 }
3736 }
3737 printk("------------------------\n");
3738 } /* DumpLong */
3739
3740 #endif /* DEBUG */
3741
3742 /*
3743 * Local variables:
3744 * compile-command: "make"
3745 * End:
3746 */
3747
Copy of Dave Jones history.git as used by http://archive.org/details/git-history-of-linux