1 /******************************************************************************
4 * Project: GEnesis, PCI Gigabit Ethernet Adapter
5 * Version: $Revision: 1.5 $
6 * Date: $Date: 2003/11/28 12:55:40 $
7 * Purpose: All functions to maintain interrupt moderation
9 ******************************************************************************/
11 /******************************************************************************
13 * (C)Copyright 1998-2002 SysKonnect GmbH.
14 * (C)Copyright 2002-2003 Marvell.
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
21 * The information in this file is provided "AS IS" without warranty.
23 ******************************************************************************/
25 /******************************************************************************
29 * This module is intended to manage the dynamic interrupt moderation on both
30 * GEnesis and Yukon adapters.
32 * Include File Hierarchy:
37 ******************************************************************************/
40 static const char SysKonnectFileId[] =
41 "@(#) $Id: skdim.c,v 1.5 2003/11/28 12:55:40 rroesler Exp $ (C) SysKonnect.";
47 #error C++ is not yet supported.
51 /*******************************************************************************
55 *******************************************************************************/
57 #ifndef __INC_SKDRV1ST_H
58 #include "h/skdrv1st.h"
61 #ifndef __INC_SKDRV2ND_H
62 #include "h/skdrv2nd.h"
65 #include <linux/kernel_stat.h>
67 /*******************************************************************************
71 *******************************************************************************/
73 /*******************************************************************************
77 *******************************************************************************/
79 /*******************************************************************************
81 ** Local function prototypes
83 *******************************************************************************/
85 static unsigned int GetCurrentSystemLoad(SK_AC *pAC);
86 static SK_U64 GetIsrCalls(SK_AC *pAC);
87 static SK_BOOL IsIntModEnabled(SK_AC *pAC);
88 static void SetCurrIntCtr(SK_AC *pAC);
89 static void EnableIntMod(SK_AC *pAC);
90 static void DisableIntMod(SK_AC *pAC);
91 static void ResizeDimTimerDuration(SK_AC *pAC);
92 static void DisplaySelectedModerationType(SK_AC *pAC);
93 static void DisplaySelectedModerationMask(SK_AC *pAC);
94 static void DisplayDescrRatio(SK_AC *pAC);
96 /*******************************************************************************
100 *******************************************************************************/
102 /*******************************************************************************
106 *******************************************************************************/
108 /*******************************************************************************
112 *******************************************************************************/
114 /*******************************************************************************
115 ** Function : SkDimModerate
116 ** Description : Called in every ISR to check if moderation is to be applied
117 ** or not for the current number of interrupts
118 ** Programmer : Ralph Roesler
119 ** Last Modified: 22-mar-03
120 ** Returns : void (!)
122 *******************************************************************************/
125 SkDimModerate(SK_AC *pAC) {
126 unsigned int CurrSysLoad = 0; /* expressed in percent */
127 unsigned int LoadIncrease = 0; /* expressed in percent */
128 SK_U64 ThresholdInts = 0;
129 SK_U64 IsrCallsPerSec = 0;
131 #define M_DIMINFO pAC->DynIrqModInfo
133 if (!IsIntModEnabled(pAC)) {
134 if (M_DIMINFO.IntModTypeSelect == C_INT_MOD_DYNAMIC) {
135 CurrSysLoad = GetCurrentSystemLoad(pAC);
136 if (CurrSysLoad > 75) {
138 ** More than 75% total system load! Enable the moderation
139 ** to shield the system against too many interrupts.
142 } else if (CurrSysLoad > M_DIMINFO.PrevSysLoad) {
143 LoadIncrease = (CurrSysLoad - M_DIMINFO.PrevSysLoad);
144 if (LoadIncrease > ((M_DIMINFO.PrevSysLoad *
145 C_INT_MOD_ENABLE_PERCENTAGE) / 100)) {
146 if (CurrSysLoad > 10) {
148 ** More than 50% increase with respect to the
149 ** previous load of the system. Most likely this
150 ** is due to our ISR-proc...
157 ** Neither too much system load at all nor too much increase
158 ** with respect to the previous system load. Hence, we can leave
159 ** the ISR-handling like it is without enabling moderation.
162 M_DIMINFO.PrevSysLoad = CurrSysLoad;
165 if (M_DIMINFO.IntModTypeSelect == C_INT_MOD_DYNAMIC) {
166 ThresholdInts = ((M_DIMINFO.MaxModIntsPerSec *
167 C_INT_MOD_DISABLE_PERCENTAGE) / 100);
168 IsrCallsPerSec = GetIsrCalls(pAC);
169 if (IsrCallsPerSec <= ThresholdInts) {
171 ** The number of interrupts within the last second is
172 ** lower than the disable_percentage of the desried
173 ** maxrate. Therefore we can disable the moderation.
176 M_DIMINFO.MaxModIntsPerSec =
177 (M_DIMINFO.MaxModIntsPerSecUpperLimit +
178 M_DIMINFO.MaxModIntsPerSecLowerLimit) / 2;
181 ** The number of interrupts per sec is the same as expected.
182 ** Evalulate the descriptor-ratio. If it has changed, a resize
183 ** in the moderation timer might be useful
185 if (M_DIMINFO.AutoSizing) {
186 ResizeDimTimerDuration(pAC);
193 ** Some information to the log...
195 if (M_DIMINFO.DisplayStats) {
196 DisplaySelectedModerationType(pAC);
197 DisplaySelectedModerationMask(pAC);
198 DisplayDescrRatio(pAC);
201 M_DIMINFO.NbrProcessedDescr = 0;
205 /*******************************************************************************
206 ** Function : SkDimStartModerationTimer
207 ** Description : Starts the audit-timer for the dynamic interrupt moderation
208 ** Programmer : Ralph Roesler
209 ** Last Modified: 22-mar-03
210 ** Returns : void (!)
212 *******************************************************************************/
215 SkDimStartModerationTimer(SK_AC *pAC) {
216 SK_EVPARA EventParam; /* Event struct for timer event */
218 SK_MEMSET((char *) &EventParam, 0, sizeof(EventParam));
219 EventParam.Para32[0] = SK_DRV_MODERATION_TIMER;
220 SkTimerStart(pAC, pAC->IoBase, &pAC->DynIrqModInfo.ModTimer,
221 SK_DRV_MODERATION_TIMER_LENGTH,
222 SKGE_DRV, SK_DRV_TIMER, EventParam);
225 /*******************************************************************************
226 ** Function : SkDimEnableModerationIfNeeded
227 ** Description : Either enables or disables moderation
228 ** Programmer : Ralph Roesler
229 ** Last Modified: 22-mar-03
230 ** Returns : void (!)
231 ** Notes : This function is called when a particular adapter is opened
232 ** There is no Disable function, because when all interrupts
233 ** might be disable, the moderation timer has no meaning at all
234 ******************************************************************************/
237 SkDimEnableModerationIfNeeded(SK_AC *pAC) {
239 if (M_DIMINFO.IntModTypeSelect == C_INT_MOD_STATIC) {
240 EnableIntMod(pAC); /* notification print in this function */
241 } else if (M_DIMINFO.IntModTypeSelect == C_INT_MOD_DYNAMIC) {
242 SkDimStartModerationTimer(pAC);
243 if (M_DIMINFO.DisplayStats) {
244 printk("Dynamic moderation has been enabled\n");
247 if (M_DIMINFO.DisplayStats) {
248 printk("No moderation has been enabled\n");
253 /*******************************************************************************
254 ** Function : SkDimDisplayModerationSettings
255 ** Description : Displays the current settings regaring interrupt moderation
256 ** Programmer : Ralph Roesler
257 ** Last Modified: 22-mar-03
258 ** Returns : void (!)
260 *******************************************************************************/
263 SkDimDisplayModerationSettings(SK_AC *pAC) {
264 DisplaySelectedModerationType(pAC);
265 DisplaySelectedModerationMask(pAC);
268 /*******************************************************************************
272 *******************************************************************************/
274 /*******************************************************************************
275 ** Function : GetCurrentSystemLoad
276 ** Description : Retrieves the current system load of the system. This load
277 ** is evaluated for all processors within the system.
278 ** Programmer : Ralph Roesler
279 ** Last Modified: 22-mar-03
280 ** Returns : unsigned int: load expressed in percentage
281 ** Notes : The possible range being returned is from 0 up to 100.
282 ** Whereas 0 means 'no load at all' and 100 'system fully loaded'
283 ** It is impossible to determine what actually causes the system
284 ** to be in 100%, but maybe that is due to too much interrupts.
285 *******************************************************************************/
288 GetCurrentSystemLoad(SK_AC *pAC) {
289 unsigned long jif = jiffies;
290 unsigned int UserTime = 0;
291 unsigned int SystemTime = 0;
292 unsigned int NiceTime = 0;
293 unsigned int IdleTime = 0;
294 unsigned int TotalTime = 0;
295 unsigned int UsedTime = 0;
296 unsigned int SystemLoad = 0;
298 /* unsigned int NbrCpu = 0; */
301 ** The following lines have been commented out, because
302 ** from kernel 2.5.44 onwards, the kernel-owned structure
304 ** struct kernel_stat kstat
306 ** is not marked as an exported symbol in the file
310 ** As a consequence, using this driver as KLM is not possible
311 ** and any access of the structure kernel_stat via the
312 ** dedicated macros kstat_cpu(i).cpustat.xxx is to be avoided.
314 ** The kstat-information might be added again in future
315 ** versions of the 2.5.xx kernel, but for the time being,
316 ** number of interrupts will serve as indication how much
317 ** load we currently have...
319 ** for (NbrCpu = 0; NbrCpu < num_online_cpus(); NbrCpu++) {
320 ** UserTime = UserTime + kstat_cpu(NbrCpu).cpustat.user;
321 ** NiceTime = NiceTime + kstat_cpu(NbrCpu).cpustat.nice;
322 ** SystemTime = SystemTime + kstat_cpu(NbrCpu).cpustat.system;
325 SK_U64 ThresholdInts = 0;
326 SK_U64 IsrCallsPerSec = 0;
328 ThresholdInts = ((M_DIMINFO.MaxModIntsPerSec *
329 C_INT_MOD_ENABLE_PERCENTAGE) + 100);
330 IsrCallsPerSec = GetIsrCalls(pAC);
331 if (IsrCallsPerSec >= ThresholdInts) {
333 ** We do not know how much the real CPU-load is!
334 ** Return 80% as a default in order to activate DIM
340 UsedTime = UserTime + NiceTime + SystemTime;
342 IdleTime = jif * num_online_cpus() - UsedTime;
343 TotalTime = UsedTime + IdleTime;
345 SystemLoad = ( 100 * (UsedTime - M_DIMINFO.PrevUsedTime) ) /
346 (TotalTime - M_DIMINFO.PrevTotalTime);
348 if (M_DIMINFO.DisplayStats) {
349 printk("Current system load is: %u\n", SystemLoad);
352 M_DIMINFO.PrevTotalTime = TotalTime;
353 M_DIMINFO.PrevUsedTime = UsedTime;
358 /*******************************************************************************
359 ** Function : GetIsrCalls
360 ** Description : Depending on the selected moderation mask, this function will
361 ** return the number of interrupts handled in the previous time-
362 ** frame. This evaluated number is based on the current number
363 ** of interrupts stored in PNMI-context and the previous stored
365 ** Programmer : Ralph Roesler
366 ** Last Modified: 23-mar-03
367 ** Returns : int: the number of interrupts being executed in the last
369 ** Notes : It makes only sense to call this function, when dynamic
370 ** interrupt moderation is applied
371 *******************************************************************************/
374 GetIsrCalls(SK_AC *pAC) {
375 SK_U64 RxPort0IntDiff = 0;
376 SK_U64 RxPort1IntDiff = 0;
377 SK_U64 TxPort0IntDiff = 0;
378 SK_U64 TxPort1IntDiff = 0;
380 if (pAC->DynIrqModInfo.MaskIrqModeration == IRQ_MASK_TX_ONLY) {
381 if (pAC->GIni.GIMacsFound == 2) {
382 TxPort1IntDiff = pAC->Pnmi.Port[1].TxIntrCts -
383 pAC->DynIrqModInfo.PrevPort1TxIntrCts;
385 TxPort0IntDiff = pAC->Pnmi.Port[0].TxIntrCts -
386 pAC->DynIrqModInfo.PrevPort0TxIntrCts;
387 } else if (pAC->DynIrqModInfo.MaskIrqModeration == IRQ_MASK_RX_ONLY) {
388 if (pAC->GIni.GIMacsFound == 2) {
389 RxPort1IntDiff = pAC->Pnmi.Port[1].RxIntrCts -
390 pAC->DynIrqModInfo.PrevPort1RxIntrCts;
392 RxPort0IntDiff = pAC->Pnmi.Port[0].RxIntrCts -
393 pAC->DynIrqModInfo.PrevPort0RxIntrCts;
395 if (pAC->GIni.GIMacsFound == 2) {
396 RxPort1IntDiff = pAC->Pnmi.Port[1].RxIntrCts -
397 pAC->DynIrqModInfo.PrevPort1RxIntrCts;
398 TxPort1IntDiff = pAC->Pnmi.Port[1].TxIntrCts -
399 pAC->DynIrqModInfo.PrevPort1TxIntrCts;
401 RxPort0IntDiff = pAC->Pnmi.Port[0].RxIntrCts -
402 pAC->DynIrqModInfo.PrevPort0RxIntrCts;
403 TxPort0IntDiff = pAC->Pnmi.Port[0].TxIntrCts -
404 pAC->DynIrqModInfo.PrevPort0TxIntrCts;
407 return (RxPort0IntDiff + RxPort1IntDiff + TxPort0IntDiff + TxPort1IntDiff);
410 /*******************************************************************************
411 ** Function : GetRxCalls
412 ** Description : This function will return the number of times a receive inter-
413 ** rupt was processed. This is needed to evaluate any resizing
415 ** Programmer : Ralph Roesler
416 ** Last Modified: 23-mar-03
417 ** Returns : SK_U64: the number of RX-ints being processed
418 ** Notes : It makes only sense to call this function, when dynamic
419 ** interrupt moderation is applied
420 *******************************************************************************/
423 GetRxCalls(SK_AC *pAC) {
424 SK_U64 RxPort0IntDiff = 0;
425 SK_U64 RxPort1IntDiff = 0;
427 if (pAC->GIni.GIMacsFound == 2) {
428 RxPort1IntDiff = pAC->Pnmi.Port[1].RxIntrCts -
429 pAC->DynIrqModInfo.PrevPort1RxIntrCts;
431 RxPort0IntDiff = pAC->Pnmi.Port[0].RxIntrCts -
432 pAC->DynIrqModInfo.PrevPort0RxIntrCts;
434 return (RxPort0IntDiff + RxPort1IntDiff);
437 /*******************************************************************************
438 ** Function : SetCurrIntCtr
439 ** Description : Will store the current number orf occured interrupts in the
440 ** adapter context. This is needed to evaluated the number of
441 ** interrupts within a current timeframe.
442 ** Programmer : Ralph Roesler
443 ** Last Modified: 23-mar-03
444 ** Returns : void (!)
446 *******************************************************************************/
449 SetCurrIntCtr(SK_AC *pAC) {
450 if (pAC->GIni.GIMacsFound == 2) {
451 pAC->DynIrqModInfo.PrevPort1RxIntrCts = pAC->Pnmi.Port[1].RxIntrCts;
452 pAC->DynIrqModInfo.PrevPort1TxIntrCts = pAC->Pnmi.Port[1].TxIntrCts;
454 pAC->DynIrqModInfo.PrevPort0RxIntrCts = pAC->Pnmi.Port[0].RxIntrCts;
455 pAC->DynIrqModInfo.PrevPort0TxIntrCts = pAC->Pnmi.Port[0].TxIntrCts;
458 /*******************************************************************************
459 ** Function : IsIntModEnabled()
460 ** Description : Retrieves the current value of the interrupts moderation
461 ** command register. Its content determines whether any
462 ** moderation is running or not.
463 ** Programmer : Ralph Roesler
464 ** Last Modified: 23-mar-03
465 ** Returns : SK_TRUE : if mod timer running
466 ** SK_FALSE : if no moderation is being performed
468 *******************************************************************************/
471 IsIntModEnabled(SK_AC *pAC) {
472 unsigned long CtrCmd;
474 SK_IN32(pAC->IoBase, B2_IRQM_CTRL, &CtrCmd);
475 if ((CtrCmd & TIM_START) == TIM_START) {
482 /*******************************************************************************
483 ** Function : EnableIntMod()
484 ** Description : Enables the interrupt moderation using the values stored in
485 ** in the pAC->DynIntMod data structure
486 ** Programmer : Ralph Roesler
487 ** Last Modified: 22-mar-03
490 *******************************************************************************/
493 EnableIntMod(SK_AC *pAC) {
494 unsigned long ModBase;
496 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
497 ModBase = C_CLK_FREQ_GENESIS / pAC->DynIrqModInfo.MaxModIntsPerSec;
499 ModBase = C_CLK_FREQ_YUKON / pAC->DynIrqModInfo.MaxModIntsPerSec;
502 SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase);
503 SK_OUT32(pAC->IoBase, B2_IRQM_MSK, pAC->DynIrqModInfo.MaskIrqModeration);
504 SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_START);
505 if (M_DIMINFO.DisplayStats) {
506 printk("Enabled interrupt moderation (%i ints/sec)\n",
507 M_DIMINFO.MaxModIntsPerSec);
511 /*******************************************************************************
512 ** Function : DisableIntMod()
513 ** Description : Disbles the interrupt moderation independent of what inter-
514 ** rupts are running or not
515 ** Programmer : Ralph Roesler
516 ** Last Modified: 23-mar-03
519 *******************************************************************************/
522 DisableIntMod(SK_AC *pAC) {
524 SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_STOP);
525 if (M_DIMINFO.DisplayStats) {
526 printk("Disabled interrupt moderation\n");
530 /*******************************************************************************
531 ** Function : ResizeDimTimerDuration();
532 ** Description : Checks the current used descriptor ratio and resizes the
533 ** duration timer (longer/smaller) if possible.
534 ** Programmer : Ralph Roesler
535 ** Last Modified: 23-mar-03
537 ** Notes : There are both maximum and minimum timer duration value.
538 ** This function assumes that interrupt moderation is already
540 *******************************************************************************/
543 ResizeDimTimerDuration(SK_AC *pAC) {
544 SK_BOOL IncreaseTimerDuration;
545 int TotalMaxNbrDescr;
549 int NewMaxModIntsPerSec;
554 ** Check first if we are allowed to perform any modification
556 if (IsIntModEnabled(pAC)) {
557 if (M_DIMINFO.IntModTypeSelect != C_INT_MOD_DYNAMIC) {
560 if (M_DIMINFO.ModJustEnabled) {
561 M_DIMINFO.ModJustEnabled = SK_FALSE;
568 ** If we got until here, we have to evaluate the amount of the
569 ** descriptor ratio change...
571 TotalMaxNbrDescr = pAC->RxDescrPerRing * GetRxCalls(pAC);
572 UsedDescrRatio = (M_DIMINFO.NbrProcessedDescr * 100) / TotalMaxNbrDescr;
574 if (UsedDescrRatio > M_DIMINFO.PrevUsedDescrRatio) {
575 RatioDiffAbs = (UsedDescrRatio - M_DIMINFO.PrevUsedDescrRatio);
576 RatioDiffRel = (RatioDiffAbs * 100) / UsedDescrRatio;
577 M_DIMINFO.PrevUsedDescrRatio = UsedDescrRatio;
578 IncreaseTimerDuration = SK_FALSE; /* in other words: DECREASE */
579 } else if (UsedDescrRatio < M_DIMINFO.PrevUsedDescrRatio) {
580 RatioDiffAbs = (M_DIMINFO.PrevUsedDescrRatio - UsedDescrRatio);
581 RatioDiffRel = (RatioDiffAbs * 100) / M_DIMINFO.PrevUsedDescrRatio;
582 M_DIMINFO.PrevUsedDescrRatio = UsedDescrRatio;
583 IncreaseTimerDuration = SK_TRUE; /* in other words: INCREASE */
585 RatioDiffAbs = (M_DIMINFO.PrevUsedDescrRatio - UsedDescrRatio);
586 RatioDiffRel = (RatioDiffAbs * 100) / M_DIMINFO.PrevUsedDescrRatio;
587 M_DIMINFO.PrevUsedDescrRatio = UsedDescrRatio;
588 IncreaseTimerDuration = SK_TRUE; /* in other words: INCREASE */
592 ** Now we can determine the change in percent
594 if ((RatioDiffRel >= 0) && (RatioDiffRel <= 5) ) {
595 ModAdjValue = 1; /* 1% change - maybe some other value in future */
596 } else if ((RatioDiffRel > 5) && (RatioDiffRel <= 10) ) {
597 ModAdjValue = 1; /* 1% change - maybe some other value in future */
598 } else if ((RatioDiffRel > 10) && (RatioDiffRel <= 15) ) {
599 ModAdjValue = 1; /* 1% change - maybe some other value in future */
601 ModAdjValue = 1; /* 1% change - maybe some other value in future */
604 if (IncreaseTimerDuration) {
605 NewMaxModIntsPerSec = M_DIMINFO.MaxModIntsPerSec +
606 (M_DIMINFO.MaxModIntsPerSec * ModAdjValue) / 100;
608 NewMaxModIntsPerSec = M_DIMINFO.MaxModIntsPerSec -
609 (M_DIMINFO.MaxModIntsPerSec * ModAdjValue) / 100;
613 ** Check if we exceed boundaries...
615 if ( (NewMaxModIntsPerSec > M_DIMINFO.MaxModIntsPerSecUpperLimit) ||
616 (NewMaxModIntsPerSec < M_DIMINFO.MaxModIntsPerSecLowerLimit)) {
617 if (M_DIMINFO.DisplayStats) {
618 printk("Cannot change ModTim from %i to %i ints/sec\n",
619 M_DIMINFO.MaxModIntsPerSec, NewMaxModIntsPerSec);
623 if (M_DIMINFO.DisplayStats) {
624 printk("Resized ModTim from %i to %i ints/sec\n",
625 M_DIMINFO.MaxModIntsPerSec, NewMaxModIntsPerSec);
629 M_DIMINFO.MaxModIntsPerSec = NewMaxModIntsPerSec;
631 if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
632 ModBase = C_CLK_FREQ_GENESIS / pAC->DynIrqModInfo.MaxModIntsPerSec;
634 ModBase = C_CLK_FREQ_YUKON / pAC->DynIrqModInfo.MaxModIntsPerSec;
638 ** We do not need to touch any other registers
640 SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase);
643 /*******************************************************************************
644 ** Function : DisplaySelectedModerationType()
645 ** Description : Displays what type of moderation we have
646 ** Programmer : Ralph Roesler
647 ** Last Modified: 23-mar-03
650 *******************************************************************************/
653 DisplaySelectedModerationType(SK_AC *pAC) {
655 if (pAC->DynIrqModInfo.DisplayStats) {
656 if (pAC->DynIrqModInfo.IntModTypeSelect == C_INT_MOD_STATIC) {
657 printk("Static int moderation runs with %i INTS/sec\n",
658 pAC->DynIrqModInfo.MaxModIntsPerSec);
659 } else if (pAC->DynIrqModInfo.IntModTypeSelect == C_INT_MOD_DYNAMIC) {
660 if (IsIntModEnabled(pAC)) {
661 printk("Dynamic int moderation runs with %i INTS/sec\n",
662 pAC->DynIrqModInfo.MaxModIntsPerSec);
664 printk("Dynamic int moderation currently not applied\n");
667 printk("No interrupt moderation selected!\n");
672 /*******************************************************************************
673 ** Function : DisplaySelectedModerationMask()
674 ** Description : Displays what interrupts are moderated
675 ** Programmer : Ralph Roesler
676 ** Last Modified: 23-mar-03
679 *******************************************************************************/
682 DisplaySelectedModerationMask(SK_AC *pAC) {
684 if (pAC->DynIrqModInfo.DisplayStats) {
685 if (pAC->DynIrqModInfo.IntModTypeSelect != C_INT_MOD_NONE) {
686 switch (pAC->DynIrqModInfo.MaskIrqModeration) {
687 case IRQ_MASK_TX_ONLY:
688 printk("Only Tx-interrupts are moderated\n");
690 case IRQ_MASK_RX_ONLY:
691 printk("Only Rx-interrupts are moderated\n");
693 case IRQ_MASK_SP_ONLY:
694 printk("Only special-interrupts are moderated\n");
697 printk("Tx- and Rx-interrupts are moderated\n");
700 printk("Special- and Rx-interrupts are moderated\n");
703 printk("Special- and Tx-interrupts are moderated\n");
705 case IRQ_MASK_RX_TX_SP:
706 printk("All Rx-, Tx and special-interrupts are moderated\n");
709 printk("Don't know what is moderated\n");
713 printk("No specific interrupts masked for moderation\n");
718 /*******************************************************************************
719 ** Function : DisplayDescrRatio
720 ** Description : Like the name states...
721 ** Programmer : Ralph Roesler
722 ** Last Modified: 23-mar-03
725 *******************************************************************************/
728 DisplayDescrRatio(SK_AC *pAC) {
729 int TotalMaxNbrDescr = 0;
731 if (pAC->DynIrqModInfo.DisplayStats) {
732 TotalMaxNbrDescr = pAC->RxDescrPerRing * GetRxCalls(pAC);
733 printk("Ratio descriptors: %i/%i\n",
734 M_DIMINFO.NbrProcessedDescr, TotalMaxNbrDescr);
738 /*******************************************************************************
742 *******************************************************************************/