743 lines
27 KiB
C
743 lines
27 KiB
C
/******************************************************************************
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*
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* Name: skdim.c
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* Project: GEnesis, PCI Gigabit Ethernet Adapter
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* Version: $Revision: 1.5 $
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* Date: $Date: 2003/11/28 12:55:40 $
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* Purpose: All functions to maintain interrupt moderation
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*
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******************************************************************************/
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/******************************************************************************
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*
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* (C)Copyright 1998-2002 SysKonnect GmbH.
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* (C)Copyright 2002-2003 Marvell.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* The information in this file is provided "AS IS" without warranty.
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*
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******************************************************************************/
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/******************************************************************************
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*
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* Description:
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*
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* This module is intended to manage the dynamic interrupt moderation on both
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* GEnesis and Yukon adapters.
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*
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* Include File Hierarchy:
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*
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* "skdrv1st.h"
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* "skdrv2nd.h"
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*
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******************************************************************************/
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#ifndef lint
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static const char SysKonnectFileId[] =
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"@(#) $Id: skdim.c,v 1.5 2003/11/28 12:55:40 rroesler Exp $ (C) SysKonnect.";
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#endif
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#define __SKADDR_C
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#ifdef __cplusplus
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#error C++ is not yet supported.
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extern "C" {
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#endif
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/*******************************************************************************
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**
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** Includes
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**
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*******************************************************************************/
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#ifndef __INC_SKDRV1ST_H
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#include "h/skdrv1st.h"
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#endif
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#ifndef __INC_SKDRV2ND_H
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#include "h/skdrv2nd.h"
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#endif
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#include <linux/kernel_stat.h>
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/*******************************************************************************
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**
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** Defines
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**
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*******************************************************************************/
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/*******************************************************************************
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**
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** Typedefs
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**
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*******************************************************************************/
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/*******************************************************************************
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**
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** Local function prototypes
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**
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*******************************************************************************/
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static unsigned int GetCurrentSystemLoad(SK_AC *pAC);
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static SK_U64 GetIsrCalls(SK_AC *pAC);
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static SK_BOOL IsIntModEnabled(SK_AC *pAC);
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static void SetCurrIntCtr(SK_AC *pAC);
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static void EnableIntMod(SK_AC *pAC);
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static void DisableIntMod(SK_AC *pAC);
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static void ResizeDimTimerDuration(SK_AC *pAC);
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static void DisplaySelectedModerationType(SK_AC *pAC);
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static void DisplaySelectedModerationMask(SK_AC *pAC);
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static void DisplayDescrRatio(SK_AC *pAC);
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/*******************************************************************************
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**
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** Global variables
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**
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*******************************************************************************/
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/*******************************************************************************
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**
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** Local variables
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**
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*******************************************************************************/
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/*******************************************************************************
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**
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** Global functions
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**
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*******************************************************************************/
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/*******************************************************************************
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** Function : SkDimModerate
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** Description : Called in every ISR to check if moderation is to be applied
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** or not for the current number of interrupts
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** Programmer : Ralph Roesler
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** Last Modified: 22-mar-03
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** Returns : void (!)
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** Notes : -
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*******************************************************************************/
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void
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SkDimModerate(SK_AC *pAC) {
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unsigned int CurrSysLoad = 0; /* expressed in percent */
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unsigned int LoadIncrease = 0; /* expressed in percent */
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SK_U64 ThresholdInts = 0;
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SK_U64 IsrCallsPerSec = 0;
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#define M_DIMINFO pAC->DynIrqModInfo
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if (!IsIntModEnabled(pAC)) {
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if (M_DIMINFO.IntModTypeSelect == C_INT_MOD_DYNAMIC) {
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CurrSysLoad = GetCurrentSystemLoad(pAC);
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if (CurrSysLoad > 75) {
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/*
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** More than 75% total system load! Enable the moderation
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** to shield the system against too many interrupts.
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*/
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EnableIntMod(pAC);
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} else if (CurrSysLoad > M_DIMINFO.PrevSysLoad) {
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LoadIncrease = (CurrSysLoad - M_DIMINFO.PrevSysLoad);
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if (LoadIncrease > ((M_DIMINFO.PrevSysLoad *
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C_INT_MOD_ENABLE_PERCENTAGE) / 100)) {
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if (CurrSysLoad > 10) {
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/*
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** More than 50% increase with respect to the
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** previous load of the system. Most likely this
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** is due to our ISR-proc...
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*/
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EnableIntMod(pAC);
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}
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}
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} else {
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/*
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** Neither too much system load at all nor too much increase
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** with respect to the previous system load. Hence, we can leave
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** the ISR-handling like it is without enabling moderation.
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*/
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}
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M_DIMINFO.PrevSysLoad = CurrSysLoad;
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}
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} else {
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if (M_DIMINFO.IntModTypeSelect == C_INT_MOD_DYNAMIC) {
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ThresholdInts = ((M_DIMINFO.MaxModIntsPerSec *
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C_INT_MOD_DISABLE_PERCENTAGE) / 100);
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IsrCallsPerSec = GetIsrCalls(pAC);
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if (IsrCallsPerSec <= ThresholdInts) {
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/*
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** The number of interrupts within the last second is
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** lower than the disable_percentage of the desried
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** maxrate. Therefore we can disable the moderation.
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*/
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DisableIntMod(pAC);
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M_DIMINFO.MaxModIntsPerSec =
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(M_DIMINFO.MaxModIntsPerSecUpperLimit +
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M_DIMINFO.MaxModIntsPerSecLowerLimit) / 2;
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} else {
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/*
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** The number of interrupts per sec is the same as expected.
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** Evalulate the descriptor-ratio. If it has changed, a resize
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** in the moderation timer might be useful
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*/
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if (M_DIMINFO.AutoSizing) {
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ResizeDimTimerDuration(pAC);
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}
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}
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}
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}
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/*
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** Some information to the log...
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*/
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if (M_DIMINFO.DisplayStats) {
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DisplaySelectedModerationType(pAC);
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DisplaySelectedModerationMask(pAC);
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DisplayDescrRatio(pAC);
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}
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M_DIMINFO.NbrProcessedDescr = 0;
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SetCurrIntCtr(pAC);
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}
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/*******************************************************************************
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** Function : SkDimStartModerationTimer
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** Description : Starts the audit-timer for the dynamic interrupt moderation
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** Programmer : Ralph Roesler
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** Last Modified: 22-mar-03
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** Returns : void (!)
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** Notes : -
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*******************************************************************************/
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void
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SkDimStartModerationTimer(SK_AC *pAC) {
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SK_EVPARA EventParam; /* Event struct for timer event */
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SK_MEMSET((char *) &EventParam, 0, sizeof(EventParam));
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EventParam.Para32[0] = SK_DRV_MODERATION_TIMER;
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SkTimerStart(pAC, pAC->IoBase, &pAC->DynIrqModInfo.ModTimer,
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SK_DRV_MODERATION_TIMER_LENGTH,
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SKGE_DRV, SK_DRV_TIMER, EventParam);
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}
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/*******************************************************************************
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** Function : SkDimEnableModerationIfNeeded
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** Description : Either enables or disables moderation
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** Programmer : Ralph Roesler
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** Last Modified: 22-mar-03
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** Returns : void (!)
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** Notes : This function is called when a particular adapter is opened
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** There is no Disable function, because when all interrupts
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** might be disable, the moderation timer has no meaning at all
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******************************************************************************/
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void
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SkDimEnableModerationIfNeeded(SK_AC *pAC) {
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if (M_DIMINFO.IntModTypeSelect == C_INT_MOD_STATIC) {
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EnableIntMod(pAC); /* notification print in this function */
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} else if (M_DIMINFO.IntModTypeSelect == C_INT_MOD_DYNAMIC) {
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SkDimStartModerationTimer(pAC);
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if (M_DIMINFO.DisplayStats) {
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printk("Dynamic moderation has been enabled\n");
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}
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} else {
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if (M_DIMINFO.DisplayStats) {
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printk("No moderation has been enabled\n");
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}
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}
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}
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/*******************************************************************************
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** Function : SkDimDisplayModerationSettings
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** Description : Displays the current settings regarding interrupt moderation
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** Programmer : Ralph Roesler
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** Last Modified: 22-mar-03
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** Returns : void (!)
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** Notes : -
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*******************************************************************************/
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void
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SkDimDisplayModerationSettings(SK_AC *pAC) {
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DisplaySelectedModerationType(pAC);
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DisplaySelectedModerationMask(pAC);
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}
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/*******************************************************************************
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**
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** Local functions
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**
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*******************************************************************************/
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/*******************************************************************************
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** Function : GetCurrentSystemLoad
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** Description : Retrieves the current system load of the system. This load
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** is evaluated for all processors within the system.
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** Programmer : Ralph Roesler
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** Last Modified: 22-mar-03
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** Returns : unsigned int: load expressed in percentage
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** Notes : The possible range being returned is from 0 up to 100.
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** Whereas 0 means 'no load at all' and 100 'system fully loaded'
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** It is impossible to determine what actually causes the system
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** to be in 100%, but maybe that is due to too much interrupts.
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*******************************************************************************/
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static unsigned int
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GetCurrentSystemLoad(SK_AC *pAC) {
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unsigned long jif = jiffies;
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unsigned int UserTime = 0;
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unsigned int SystemTime = 0;
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unsigned int NiceTime = 0;
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unsigned int IdleTime = 0;
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unsigned int TotalTime = 0;
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unsigned int UsedTime = 0;
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unsigned int SystemLoad = 0;
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/* unsigned int NbrCpu = 0; */
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/*
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** The following lines have been commented out, because
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** from kernel 2.5.44 onwards, the kernel-owned structure
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**
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** struct kernel_stat kstat
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**
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** is not marked as an exported symbol in the file
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**
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** kernel/ksyms.c
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**
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** As a consequence, using this driver as KLM is not possible
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** and any access of the structure kernel_stat via the
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** dedicated macros kstat_cpu(i).cpustat.xxx is to be avoided.
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**
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** The kstat-information might be added again in future
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** versions of the 2.5.xx kernel, but for the time being,
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** number of interrupts will serve as indication how much
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** load we currently have...
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**
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** for (NbrCpu = 0; NbrCpu < num_online_cpus(); NbrCpu++) {
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** UserTime = UserTime + kstat_cpu(NbrCpu).cpustat.user;
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** NiceTime = NiceTime + kstat_cpu(NbrCpu).cpustat.nice;
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** SystemTime = SystemTime + kstat_cpu(NbrCpu).cpustat.system;
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** }
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*/
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SK_U64 ThresholdInts = 0;
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SK_U64 IsrCallsPerSec = 0;
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ThresholdInts = ((M_DIMINFO.MaxModIntsPerSec *
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C_INT_MOD_ENABLE_PERCENTAGE) + 100);
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IsrCallsPerSec = GetIsrCalls(pAC);
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if (IsrCallsPerSec >= ThresholdInts) {
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/*
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** We do not know how much the real CPU-load is!
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** Return 80% as a default in order to activate DIM
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*/
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SystemLoad = 80;
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return (SystemLoad);
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}
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UsedTime = UserTime + NiceTime + SystemTime;
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IdleTime = jif * num_online_cpus() - UsedTime;
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TotalTime = UsedTime + IdleTime;
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SystemLoad = ( 100 * (UsedTime - M_DIMINFO.PrevUsedTime) ) /
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(TotalTime - M_DIMINFO.PrevTotalTime);
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if (M_DIMINFO.DisplayStats) {
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printk("Current system load is: %u\n", SystemLoad);
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}
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M_DIMINFO.PrevTotalTime = TotalTime;
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M_DIMINFO.PrevUsedTime = UsedTime;
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return (SystemLoad);
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}
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/*******************************************************************************
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** Function : GetIsrCalls
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** Description : Depending on the selected moderation mask, this function will
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** return the number of interrupts handled in the previous time-
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** frame. This evaluated number is based on the current number
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** of interrupts stored in PNMI-context and the previous stored
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** interrupts.
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** Programmer : Ralph Roesler
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** Last Modified: 23-mar-03
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** Returns : int: the number of interrupts being executed in the last
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** timeframe
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** Notes : It makes only sense to call this function, when dynamic
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** interrupt moderation is applied
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*******************************************************************************/
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static SK_U64
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GetIsrCalls(SK_AC *pAC) {
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SK_U64 RxPort0IntDiff = 0;
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SK_U64 RxPort1IntDiff = 0;
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SK_U64 TxPort0IntDiff = 0;
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SK_U64 TxPort1IntDiff = 0;
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if (pAC->DynIrqModInfo.MaskIrqModeration == IRQ_MASK_TX_ONLY) {
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if (pAC->GIni.GIMacsFound == 2) {
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TxPort1IntDiff = pAC->Pnmi.Port[1].TxIntrCts -
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pAC->DynIrqModInfo.PrevPort1TxIntrCts;
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}
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TxPort0IntDiff = pAC->Pnmi.Port[0].TxIntrCts -
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pAC->DynIrqModInfo.PrevPort0TxIntrCts;
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} else if (pAC->DynIrqModInfo.MaskIrqModeration == IRQ_MASK_RX_ONLY) {
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if (pAC->GIni.GIMacsFound == 2) {
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RxPort1IntDiff = pAC->Pnmi.Port[1].RxIntrCts -
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pAC->DynIrqModInfo.PrevPort1RxIntrCts;
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}
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RxPort0IntDiff = pAC->Pnmi.Port[0].RxIntrCts -
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pAC->DynIrqModInfo.PrevPort0RxIntrCts;
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} else {
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if (pAC->GIni.GIMacsFound == 2) {
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RxPort1IntDiff = pAC->Pnmi.Port[1].RxIntrCts -
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pAC->DynIrqModInfo.PrevPort1RxIntrCts;
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TxPort1IntDiff = pAC->Pnmi.Port[1].TxIntrCts -
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pAC->DynIrqModInfo.PrevPort1TxIntrCts;
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}
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RxPort0IntDiff = pAC->Pnmi.Port[0].RxIntrCts -
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pAC->DynIrqModInfo.PrevPort0RxIntrCts;
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TxPort0IntDiff = pAC->Pnmi.Port[0].TxIntrCts -
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pAC->DynIrqModInfo.PrevPort0TxIntrCts;
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}
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return (RxPort0IntDiff + RxPort1IntDiff + TxPort0IntDiff + TxPort1IntDiff);
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}
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/*******************************************************************************
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** Function : GetRxCalls
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** Description : This function will return the number of times a receive inter-
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** rupt was processed. This is needed to evaluate any resizing
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** factor.
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** Programmer : Ralph Roesler
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** Last Modified: 23-mar-03
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** Returns : SK_U64: the number of RX-ints being processed
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** Notes : It makes only sense to call this function, when dynamic
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** interrupt moderation is applied
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*******************************************************************************/
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static SK_U64
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GetRxCalls(SK_AC *pAC) {
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SK_U64 RxPort0IntDiff = 0;
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SK_U64 RxPort1IntDiff = 0;
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if (pAC->GIni.GIMacsFound == 2) {
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RxPort1IntDiff = pAC->Pnmi.Port[1].RxIntrCts -
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pAC->DynIrqModInfo.PrevPort1RxIntrCts;
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}
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RxPort0IntDiff = pAC->Pnmi.Port[0].RxIntrCts -
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pAC->DynIrqModInfo.PrevPort0RxIntrCts;
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return (RxPort0IntDiff + RxPort1IntDiff);
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}
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/*******************************************************************************
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** Function : SetCurrIntCtr
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** Description : Will store the current number orf occured interrupts in the
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** adapter context. This is needed to evaluated the number of
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** interrupts within a current timeframe.
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** Programmer : Ralph Roesler
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** Last Modified: 23-mar-03
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** Returns : void (!)
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** Notes : -
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*******************************************************************************/
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static void
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SetCurrIntCtr(SK_AC *pAC) {
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if (pAC->GIni.GIMacsFound == 2) {
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pAC->DynIrqModInfo.PrevPort1RxIntrCts = pAC->Pnmi.Port[1].RxIntrCts;
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pAC->DynIrqModInfo.PrevPort1TxIntrCts = pAC->Pnmi.Port[1].TxIntrCts;
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}
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pAC->DynIrqModInfo.PrevPort0RxIntrCts = pAC->Pnmi.Port[0].RxIntrCts;
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pAC->DynIrqModInfo.PrevPort0TxIntrCts = pAC->Pnmi.Port[0].TxIntrCts;
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}
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/*******************************************************************************
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** Function : IsIntModEnabled()
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** Description : Retrieves the current value of the interrupts moderation
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** command register. Its content determines whether any
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** moderation is running or not.
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** Programmer : Ralph Roesler
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** Last Modified: 23-mar-03
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** Returns : SK_TRUE : if mod timer running
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** SK_FALSE : if no moderation is being performed
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** Notes : -
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*******************************************************************************/
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static SK_BOOL
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IsIntModEnabled(SK_AC *pAC) {
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unsigned long CtrCmd;
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SK_IN32(pAC->IoBase, B2_IRQM_CTRL, &CtrCmd);
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if ((CtrCmd & TIM_START) == TIM_START) {
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return SK_TRUE;
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} else {
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return SK_FALSE;
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}
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}
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/*******************************************************************************
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** Function : EnableIntMod()
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** Description : Enables the interrupt moderation using the values stored in
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** in the pAC->DynIntMod data structure
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** Programmer : Ralph Roesler
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** Last Modified: 22-mar-03
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** Returns : -
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** Notes : -
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*******************************************************************************/
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static void
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EnableIntMod(SK_AC *pAC) {
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unsigned long ModBase;
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if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
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ModBase = C_CLK_FREQ_GENESIS / pAC->DynIrqModInfo.MaxModIntsPerSec;
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} else {
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ModBase = C_CLK_FREQ_YUKON / pAC->DynIrqModInfo.MaxModIntsPerSec;
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}
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SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase);
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SK_OUT32(pAC->IoBase, B2_IRQM_MSK, pAC->DynIrqModInfo.MaskIrqModeration);
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SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_START);
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if (M_DIMINFO.DisplayStats) {
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printk("Enabled interrupt moderation (%i ints/sec)\n",
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M_DIMINFO.MaxModIntsPerSec);
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}
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}
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/*******************************************************************************
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** Function : DisableIntMod()
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** Description : Disables the interrupt moderation independent of what inter-
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** rupts are running or not
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** Programmer : Ralph Roesler
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** Last Modified: 23-mar-03
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** Returns : -
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** Notes : -
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*******************************************************************************/
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static void
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DisableIntMod(SK_AC *pAC) {
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SK_OUT32(pAC->IoBase, B2_IRQM_CTRL, TIM_STOP);
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if (M_DIMINFO.DisplayStats) {
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printk("Disabled interrupt moderation\n");
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}
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}
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/*******************************************************************************
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** Function : ResizeDimTimerDuration();
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** Description : Checks the current used descriptor ratio and resizes the
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** duration timer (longer/smaller) if possible.
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** Programmer : Ralph Roesler
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** Last Modified: 23-mar-03
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** Returns : -
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** Notes : There are both maximum and minimum timer duration value.
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** This function assumes that interrupt moderation is already
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** enabled!
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*******************************************************************************/
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static void
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ResizeDimTimerDuration(SK_AC *pAC) {
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SK_BOOL IncreaseTimerDuration;
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int TotalMaxNbrDescr;
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int UsedDescrRatio;
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int RatioDiffAbs;
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int RatioDiffRel;
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int NewMaxModIntsPerSec;
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int ModAdjValue;
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long ModBase;
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/*
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** Check first if we are allowed to perform any modification
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*/
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if (IsIntModEnabled(pAC)) {
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if (M_DIMINFO.IntModTypeSelect != C_INT_MOD_DYNAMIC) {
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return;
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} else {
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if (M_DIMINFO.ModJustEnabled) {
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M_DIMINFO.ModJustEnabled = SK_FALSE;
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return;
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}
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}
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}
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/*
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** If we got until here, we have to evaluate the amount of the
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** descriptor ratio change...
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*/
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TotalMaxNbrDescr = pAC->RxDescrPerRing * GetRxCalls(pAC);
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UsedDescrRatio = (M_DIMINFO.NbrProcessedDescr * 100) / TotalMaxNbrDescr;
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if (UsedDescrRatio > M_DIMINFO.PrevUsedDescrRatio) {
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RatioDiffAbs = (UsedDescrRatio - M_DIMINFO.PrevUsedDescrRatio);
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RatioDiffRel = (RatioDiffAbs * 100) / UsedDescrRatio;
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M_DIMINFO.PrevUsedDescrRatio = UsedDescrRatio;
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IncreaseTimerDuration = SK_FALSE; /* in other words: DECREASE */
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} else if (UsedDescrRatio < M_DIMINFO.PrevUsedDescrRatio) {
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RatioDiffAbs = (M_DIMINFO.PrevUsedDescrRatio - UsedDescrRatio);
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RatioDiffRel = (RatioDiffAbs * 100) / M_DIMINFO.PrevUsedDescrRatio;
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M_DIMINFO.PrevUsedDescrRatio = UsedDescrRatio;
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IncreaseTimerDuration = SK_TRUE; /* in other words: INCREASE */
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} else {
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RatioDiffAbs = (M_DIMINFO.PrevUsedDescrRatio - UsedDescrRatio);
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RatioDiffRel = (RatioDiffAbs * 100) / M_DIMINFO.PrevUsedDescrRatio;
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M_DIMINFO.PrevUsedDescrRatio = UsedDescrRatio;
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IncreaseTimerDuration = SK_TRUE; /* in other words: INCREASE */
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}
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/*
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** Now we can determine the change in percent
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*/
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if ((RatioDiffRel >= 0) && (RatioDiffRel <= 5) ) {
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ModAdjValue = 1; /* 1% change - maybe some other value in future */
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} else if ((RatioDiffRel > 5) && (RatioDiffRel <= 10) ) {
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ModAdjValue = 1; /* 1% change - maybe some other value in future */
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} else if ((RatioDiffRel > 10) && (RatioDiffRel <= 15) ) {
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ModAdjValue = 1; /* 1% change - maybe some other value in future */
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} else {
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ModAdjValue = 1; /* 1% change - maybe some other value in future */
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}
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if (IncreaseTimerDuration) {
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NewMaxModIntsPerSec = M_DIMINFO.MaxModIntsPerSec +
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(M_DIMINFO.MaxModIntsPerSec * ModAdjValue) / 100;
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} else {
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NewMaxModIntsPerSec = M_DIMINFO.MaxModIntsPerSec -
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(M_DIMINFO.MaxModIntsPerSec * ModAdjValue) / 100;
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}
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/*
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** Check if we exceed boundaries...
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*/
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if ( (NewMaxModIntsPerSec > M_DIMINFO.MaxModIntsPerSecUpperLimit) ||
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(NewMaxModIntsPerSec < M_DIMINFO.MaxModIntsPerSecLowerLimit)) {
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if (M_DIMINFO.DisplayStats) {
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printk("Cannot change ModTim from %i to %i ints/sec\n",
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M_DIMINFO.MaxModIntsPerSec, NewMaxModIntsPerSec);
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}
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return;
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} else {
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if (M_DIMINFO.DisplayStats) {
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printk("Resized ModTim from %i to %i ints/sec\n",
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M_DIMINFO.MaxModIntsPerSec, NewMaxModIntsPerSec);
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}
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}
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M_DIMINFO.MaxModIntsPerSec = NewMaxModIntsPerSec;
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if (pAC->GIni.GIChipId == CHIP_ID_GENESIS) {
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ModBase = C_CLK_FREQ_GENESIS / pAC->DynIrqModInfo.MaxModIntsPerSec;
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} else {
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ModBase = C_CLK_FREQ_YUKON / pAC->DynIrqModInfo.MaxModIntsPerSec;
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}
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/*
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** We do not need to touch any other registers
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*/
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SK_OUT32(pAC->IoBase, B2_IRQM_INI, ModBase);
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}
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/*******************************************************************************
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** Function : DisplaySelectedModerationType()
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** Description : Displays what type of moderation we have
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|
** Programmer : Ralph Roesler
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** Last Modified: 23-mar-03
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** Returns : void!
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** Notes : -
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*******************************************************************************/
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static void
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DisplaySelectedModerationType(SK_AC *pAC) {
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if (pAC->DynIrqModInfo.DisplayStats) {
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if (pAC->DynIrqModInfo.IntModTypeSelect == C_INT_MOD_STATIC) {
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printk("Static int moderation runs with %i INTS/sec\n",
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pAC->DynIrqModInfo.MaxModIntsPerSec);
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} else if (pAC->DynIrqModInfo.IntModTypeSelect == C_INT_MOD_DYNAMIC) {
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if (IsIntModEnabled(pAC)) {
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printk("Dynamic int moderation runs with %i INTS/sec\n",
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pAC->DynIrqModInfo.MaxModIntsPerSec);
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} else {
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printk("Dynamic int moderation currently not applied\n");
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}
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} else {
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printk("No interrupt moderation selected!\n");
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}
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}
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}
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/*******************************************************************************
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|
** Function : DisplaySelectedModerationMask()
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|
** Description : Displays what interrupts are moderated
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|
** Programmer : Ralph Roesler
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|
** Last Modified: 23-mar-03
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|
** Returns : void!
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|
** Notes : -
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|
*******************************************************************************/
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|
|
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static void
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DisplaySelectedModerationMask(SK_AC *pAC) {
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if (pAC->DynIrqModInfo.DisplayStats) {
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if (pAC->DynIrqModInfo.IntModTypeSelect != C_INT_MOD_NONE) {
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switch (pAC->DynIrqModInfo.MaskIrqModeration) {
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case IRQ_MASK_TX_ONLY:
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|
printk("Only Tx-interrupts are moderated\n");
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|
break;
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|
case IRQ_MASK_RX_ONLY:
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|
printk("Only Rx-interrupts are moderated\n");
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|
break;
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|
case IRQ_MASK_SP_ONLY:
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|
printk("Only special-interrupts are moderated\n");
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|
break;
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|
case IRQ_MASK_TX_RX:
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|
printk("Tx- and Rx-interrupts are moderated\n");
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|
break;
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|
case IRQ_MASK_SP_RX:
|
|
printk("Special- and Rx-interrupts are moderated\n");
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|
break;
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|
case IRQ_MASK_SP_TX:
|
|
printk("Special- and Tx-interrupts are moderated\n");
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|
break;
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|
case IRQ_MASK_RX_TX_SP:
|
|
printk("All Rx-, Tx and special-interrupts are moderated\n");
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|
break;
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|
default:
|
|
printk("Don't know what is moderated\n");
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|
break;
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|
}
|
|
} else {
|
|
printk("No specific interrupts masked for moderation\n");
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|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
** Function : DisplayDescrRatio
|
|
** Description : Like the name states...
|
|
** Programmer : Ralph Roesler
|
|
** Last Modified: 23-mar-03
|
|
** Returns : void!
|
|
** Notes : -
|
|
*******************************************************************************/
|
|
|
|
static void
|
|
DisplayDescrRatio(SK_AC *pAC) {
|
|
int TotalMaxNbrDescr = 0;
|
|
|
|
if (pAC->DynIrqModInfo.DisplayStats) {
|
|
TotalMaxNbrDescr = pAC->RxDescrPerRing * GetRxCalls(pAC);
|
|
printk("Ratio descriptors: %i/%i\n",
|
|
M_DIMINFO.NbrProcessedDescr, TotalMaxNbrDescr);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** End of file
|
|
**
|
|
*******************************************************************************/
|