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diff --git a/arch/arm/cpu/ixp/npe/IxNpeMhConfig.c b/arch/arm/cpu/ixp/npe/IxNpeMhConfig.c
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+++ b/arch/arm/cpu/ixp/npe/IxNpeMhConfig.c
@@ -0,0 +1,608 @@
+/**
+ * @file IxNpeMhConfig.c
+ *
+ * @author Intel Corporation
+ * @date 18 Jan 2002
+ *
+ * @brief This file contains the implementation of the private API for the
+ * Configuration module.
+ *
+ *
+ * @par
+ * IXP400 SW Release version 2.0
+ *
+ * -- Copyright Notice --
+ *
+ * @par
+ * Copyright 2001-2005, Intel Corporation.
+ * All rights reserved.
+ *
+ * @par
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Intel Corporation nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * @par
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @par
+ * -- End of Copyright Notice --
+*/
+
+/*
+ * Put the system defined include files required.
+ */
+
+
+/*
+ * Put the user defined include files required.
+ */
+
+#include "IxOsal.h"
+
+#include "IxNpeMhMacros_p.h"
+
+#include "IxNpeMhConfig_p.h"
+
+/*
+ * #defines and macros used in this file.
+ */
+#define IX_NPE_MH_MAX_NUM_OF_RETRIES 1000000 /**< Maximum number of
+ * retries before
+ * timeout
+ */
+
+/*
+ * Typedefs whose scope is limited to this file.
+ */
+
+/**
+ * @struct IxNpeMhConfigStats
+ *
+ * @brief This structure is used to maintain statistics for the
+ * Configuration module.
+ */
+
+typedef struct
+{
+ UINT32 outFifoReads; /**< outFifo reads */
+ UINT32 inFifoWrites; /**< inFifo writes */
+ UINT32 maxInFifoFullRetries; /**< max retries if inFIFO full */
+ UINT32 maxOutFifoEmptyRetries; /**< max retries if outFIFO empty */
+} IxNpeMhConfigStats;
+
+/*
+ * Variable declarations global to this file only. Externs are followed by
+ * static variables.
+ */
+
+IxNpeMhConfigNpeInfo ixNpeMhConfigNpeInfo[IX_NPEMH_NUM_NPES] =
+{
+ {
+ 0,
+ IX_NPEMH_NPEA_INT,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ NULL,
+ FALSE
+ },
+ {
+ 0,
+ IX_NPEMH_NPEB_INT,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ NULL,
+ FALSE
+ },
+ {
+ 0,
+ IX_NPEMH_NPEC_INT,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ NULL,
+ FALSE
+ }
+};
+
+PRIVATE IxNpeMhConfigStats ixNpeMhConfigStats[IX_NPEMH_NUM_NPES];
+
+/*
+ * Extern function prototypes.
+ */
+
+/*
+ * Static function prototypes.
+ */
+PRIVATE
+void ixNpeMhConfigIsr (void *parameter);
+
+/*
+ * Function definition: ixNpeMhConfigIsr
+ */
+
+PRIVATE
+void ixNpeMhConfigIsr (void *parameter)
+{
+ IxNpeMhNpeId npeId = (IxNpeMhNpeId)parameter;
+ UINT32 ofint;
+ volatile UINT32 *statusReg =
+ (UINT32 *)ixNpeMhConfigNpeInfo[npeId].statusRegister;
+
+ IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Entering "
+ "ixNpeMhConfigIsr\n");
+
+ /* get the OFINT (OutFifo interrupt) bit of the status register */
+ IX_NPEMH_REGISTER_READ_BITS (statusReg, &ofint, IX_NPEMH_NPE_STAT_OFINT);
+
+ /* if the OFINT status bit is set */
+ if (ofint)
+ {
+ /* if there is an ISR registered for this NPE */
+ if (ixNpeMhConfigNpeInfo[npeId].isr != NULL)
+ {
+ /* invoke the ISR routine */
+ ixNpeMhConfigNpeInfo[npeId].isr (npeId);
+ }
+ else
+ {
+ /* if we don't service the interrupt the NPE will continue */
+ /* to trigger the interrupt indefinitely */
+ IX_NPEMH_ERROR_REPORT ("No ISR registered to service "
+ "interrupt\n");
+ }
+ }
+
+ IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Exiting "
+ "ixNpeMhConfigIsr\n");
+}
+
+/*
+ * Function definition: ixNpeMhConfigInitialize
+ */
+
+void ixNpeMhConfigInitialize (
+ IxNpeMhNpeInterrupts npeInterrupts)
+{
+ IxNpeMhNpeId npeId;
+ UINT32 virtualAddr[IX_NPEMH_NUM_NPES];
+
+ IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Entering "
+ "ixNpeMhConfigInitialize\n");
+
+ /* Request a mapping for the NPE-A config register address space */
+ virtualAddr[IX_NPEMH_NPEID_NPEA] =
+ (UINT32) IX_OSAL_MEM_MAP (IX_NPEMH_NPEA_BASE,
+ IX_OSAL_IXP400_NPEA_MAP_SIZE);
+ IX_OSAL_ASSERT (virtualAddr[IX_NPEMH_NPEID_NPEA]);
+
+ /* Request a mapping for the NPE-B config register address space */
+ virtualAddr[IX_NPEMH_NPEID_NPEB] =
+ (UINT32) IX_OSAL_MEM_MAP (IX_NPEMH_NPEB_BASE,
+ IX_OSAL_IXP400_NPEB_MAP_SIZE);
+ IX_OSAL_ASSERT (virtualAddr[IX_NPEMH_NPEID_NPEB]);
+
+ /* Request a mapping for the NPE-C config register address space */
+ virtualAddr[IX_NPEMH_NPEID_NPEC] =
+ (UINT32) IX_OSAL_MEM_MAP (IX_NPEMH_NPEC_BASE,
+ IX_OSAL_IXP400_NPEC_MAP_SIZE);
+ IX_OSAL_ASSERT (virtualAddr[IX_NPEMH_NPEID_NPEC]);
+
+ /* for each NPE ... */
+ for (npeId = 0; npeId < IX_NPEMH_NUM_NPES; npeId++)
+ {
+ /* declare a convenience pointer */
+ IxNpeMhConfigNpeInfo *npeInfo = &ixNpeMhConfigNpeInfo[npeId];
+
+ /* store the virtual addresses of the NPE registers for later use */
+ npeInfo->virtualRegisterBase = virtualAddr[npeId];
+ npeInfo->statusRegister = virtualAddr[npeId] + IX_NPEMH_NPESTAT_OFFSET;
+ npeInfo->controlRegister = virtualAddr[npeId] + IX_NPEMH_NPECTL_OFFSET;
+ npeInfo->inFifoRegister = virtualAddr[npeId] + IX_NPEMH_NPEFIFO_OFFSET;
+ npeInfo->outFifoRegister = virtualAddr[npeId] + IX_NPEMH_NPEFIFO_OFFSET;
+
+ /* for test purposes - to verify the register addresses */
+ IX_NPEMH_TRACE2 (IX_NPEMH_DEBUG, "NPE %d status register = "
+ "0x%08X\n", npeId, npeInfo->statusRegister);
+ IX_NPEMH_TRACE2 (IX_NPEMH_DEBUG, "NPE %d control register = "
+ "0x%08X\n", npeId, npeInfo->controlRegister);
+ IX_NPEMH_TRACE2 (IX_NPEMH_DEBUG, "NPE %d inFifo register = "
+ "0x%08X\n", npeId, npeInfo->inFifoRegister);
+ IX_NPEMH_TRACE2 (IX_NPEMH_DEBUG, "NPE %d outFifo register = "
+ "0x%08X\n", npeId, npeInfo->outFifoRegister);
+
+ /* connect our ISR to the NPE interrupt */
+ (void) ixOsalIrqBind (
+ npeInfo->interruptId, ixNpeMhConfigIsr, (void *)npeId);
+
+ /* initialise a mutex for this NPE */
+ (void) ixOsalMutexInit (&npeInfo->mutex);
+
+ /* if we should service the NPE's "outFIFO not empty" interrupt */
+ if (npeInterrupts == IX_NPEMH_NPEINTERRUPTS_YES)
+ {
+ /* enable the NPE's "outFIFO not empty" interrupt */
+ ixNpeMhConfigNpeInterruptEnable (npeId);
+ }
+ else
+ {
+ /* disable the NPE's "outFIFO not empty" interrupt */
+ ixNpeMhConfigNpeInterruptDisable (npeId);
+ }
+ }
+
+ IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Exiting "
+ "ixNpeMhConfigInitialize\n");
+}
+
+/*
+ * Function definition: ixNpeMhConfigUninit
+ */
+
+void ixNpeMhConfigUninit (void)
+{
+ IxNpeMhNpeId npeId;
+
+ IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Entering "
+ "ixNpeMhConfigUninit\n");
+
+ /* for each NPE ... */
+ for (npeId = 0; npeId < IX_NPEMH_NUM_NPES; npeId++)
+ {
+ /* declare a convenience pointer */
+ IxNpeMhConfigNpeInfo *npeInfo = &ixNpeMhConfigNpeInfo[npeId];
+
+ /* disconnect ISR */
+ ixOsalIrqUnbind(npeInfo->interruptId);
+
+ /* destroy mutex associated with this NPE */
+ ixOsalMutexDestroy(&npeInfo->mutex);
+
+ IX_OSAL_MEM_UNMAP (npeInfo->virtualRegisterBase);
+
+ npeInfo->virtualRegisterBase = 0;
+ npeInfo->statusRegister = 0;
+ npeInfo->controlRegister = 0;
+ npeInfo->inFifoRegister = 0;
+ npeInfo->outFifoRegister = 0;
+ }
+
+ IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Exiting "
+ "ixNpeMhConfigUninit\n");
+}
+
+/*
+ * Function definition: ixNpeMhConfigIsrRegister
+ */
+
+void ixNpeMhConfigIsrRegister (
+ IxNpeMhNpeId npeId,
+ IxNpeMhConfigIsr isr)
+{
+ IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Entering "
+ "ixNpeMhConfigIsrRegister\n");
+
+ /* check if there is already an ISR registered for this NPE */
+ if (ixNpeMhConfigNpeInfo[npeId].isr != NULL)
+ {
+ IX_NPEMH_TRACE0 (IX_NPEMH_DEBUG, "Over-writing registered NPE ISR\n");
+ }
+
+ /* save the ISR routine with the NPE info */
+ ixNpeMhConfigNpeInfo[npeId].isr = isr;
+
+ IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Exiting "
+ "ixNpeMhConfigIsrRegister\n");
+}
+
+/*
+ * Function definition: ixNpeMhConfigNpeInterruptEnable
+ */
+
+BOOL ixNpeMhConfigNpeInterruptEnable (
+ IxNpeMhNpeId npeId)
+{
+ UINT32 ofe;
+ volatile UINT32 *controlReg =
+ (UINT32 *)ixNpeMhConfigNpeInfo[npeId].controlRegister;
+
+ /* get the OFE (OutFifoEnable) bit of the control register */
+ IX_NPEMH_REGISTER_READ_BITS (controlReg, &ofe, IX_NPEMH_NPE_CTL_OFE);
+
+ /* if the interrupt is disabled then we must enable it */
+ if (!ofe)
+ {
+ /* set the OFE (OutFifoEnable) bit of the control register */
+ /* we must set the OFEWE (OutFifoEnableWriteEnable) at the same */
+ /* time for the write to have effect */
+ IX_NPEMH_REGISTER_WRITE_BITS (controlReg,
+ (IX_NPEMH_NPE_CTL_OFE |
+ IX_NPEMH_NPE_CTL_OFEWE),
+ (IX_NPEMH_NPE_CTL_OFE |
+ IX_NPEMH_NPE_CTL_OFEWE));
+ }
+
+ /* return the previous state of the interrupt */
+ return (ofe != 0);
+}
+
+/*
+ * Function definition: ixNpeMhConfigNpeInterruptDisable
+ */
+
+BOOL ixNpeMhConfigNpeInterruptDisable (
+ IxNpeMhNpeId npeId)
+{
+ UINT32 ofe;
+ volatile UINT32 *controlReg =
+ (UINT32 *)ixNpeMhConfigNpeInfo[npeId].controlRegister;
+
+ /* get the OFE (OutFifoEnable) bit of the control register */
+ IX_NPEMH_REGISTER_READ_BITS (controlReg, &ofe, IX_NPEMH_NPE_CTL_OFE);
+
+ /* if the interrupt is enabled then we must disable it */
+ if (ofe)
+ {
+ /* unset the OFE (OutFifoEnable) bit of the control register */
+ /* we must set the OFEWE (OutFifoEnableWriteEnable) at the same */
+ /* time for the write to have effect */
+ IX_NPEMH_REGISTER_WRITE_BITS (controlReg,
+ (0 |
+ IX_NPEMH_NPE_CTL_OFEWE),
+ (IX_NPEMH_NPE_CTL_OFE |
+ IX_NPEMH_NPE_CTL_OFEWE));
+ }
+
+ /* return the previous state of the interrupt */
+ return (ofe != 0);
+}
+
+/*
+ * Function definition: ixNpeMhConfigMessageIdGet
+ */
+
+IxNpeMhMessageId ixNpeMhConfigMessageIdGet (
+ IxNpeMhMessage message)
+{
+ /* return the most-significant byte of the first word of the */
+ /* message */
+ return ((IxNpeMhMessageId) ((message.data[0] >> 24) & 0xFF));
+}
+
+/*
+ * Function definition: ixNpeMhConfigNpeIdIsValid
+ */
+
+BOOL ixNpeMhConfigNpeIdIsValid (
+ IxNpeMhNpeId npeId)
+{
+ /* check that the npeId parameter is within the range of valid IDs */
+ return (npeId >= 0 && npeId < IX_NPEMH_NUM_NPES);
+}
+
+/*
+ * Function definition: ixNpeMhConfigLockGet
+ */
+
+void ixNpeMhConfigLockGet (
+ IxNpeMhNpeId npeId)
+{
+ IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Entering "
+ "ixNpeMhConfigLockGet\n");
+
+ /* lock the mutex for this NPE */
+ (void) ixOsalMutexLock (&ixNpeMhConfigNpeInfo[npeId].mutex,
+ IX_OSAL_WAIT_FOREVER);
+
+ /* disable the NPE's "outFIFO not empty" interrupt */
+ ixNpeMhConfigNpeInfo[npeId].oldInterruptState =
+ ixNpeMhConfigNpeInterruptDisable (npeId);
+
+ IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Exiting "
+ "ixNpeMhConfigLockGet\n");
+}
+
+/*
+ * Function definition: ixNpeMhConfigLockRelease
+ */
+
+void ixNpeMhConfigLockRelease (
+ IxNpeMhNpeId npeId)
+{
+ IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Entering "
+ "ixNpeMhConfigLockRelease\n");
+
+ /* if the interrupt was previously enabled */
+ if (ixNpeMhConfigNpeInfo[npeId].oldInterruptState)
+ {
+ /* enable the NPE's "outFIFO not empty" interrupt */
+ ixNpeMhConfigNpeInfo[npeId].oldInterruptState =
+ ixNpeMhConfigNpeInterruptEnable (npeId);
+ }
+
+ /* unlock the mutex for this NPE */
+ (void) ixOsalMutexUnlock (&ixNpeMhConfigNpeInfo[npeId].mutex);
+
+ IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Exiting "
+ "ixNpeMhConfigLockRelease\n");
+}
+
+/*
+ * Function definition: ixNpeMhConfigInFifoWrite
+ */
+
+IX_STATUS ixNpeMhConfigInFifoWrite (
+ IxNpeMhNpeId npeId,
+ IxNpeMhMessage message)
+{
+ volatile UINT32 *npeInFifo =
+ (UINT32 *)ixNpeMhConfigNpeInfo[npeId].inFifoRegister;
+ UINT32 retriesCount = 0;
+
+ /* write the first word of the message to the NPE's inFIFO */
+ IX_NPEMH_REGISTER_WRITE (npeInFifo, message.data[0]);
+
+ /* need to wait for room to write second word - see SCR #493,
+ poll for maximum number of retries, if exceed maximum
+ retries, exit from while loop */
+ while ((IX_NPE_MH_MAX_NUM_OF_RETRIES > retriesCount)
+ && ixNpeMhConfigInFifoIsFull (npeId))
+ {
+ retriesCount++;
+ }
+
+ /* Return TIMEOUT status to caller, indicate that NPE Hang / Halt */
+ if (IX_NPE_MH_MAX_NUM_OF_RETRIES == retriesCount)
+ {
+ return IX_NPEMH_CRITICAL_NPE_ERR;
+ }
+
+ /* write the second word of the message to the NPE's inFIFO */
+ IX_NPEMH_REGISTER_WRITE (npeInFifo, message.data[1]);
+
+ /* record in the stats the maximum number of retries needed */
+ if (ixNpeMhConfigStats[npeId].maxInFifoFullRetries < retriesCount)
+ {
+ ixNpeMhConfigStats[npeId].maxInFifoFullRetries = retriesCount;
+ }
+
+ /* update statistical info */
+ ixNpeMhConfigStats[npeId].inFifoWrites++;
+
+ return IX_SUCCESS;
+}
+
+/*
+ * Function definition: ixNpeMhConfigOutFifoRead
+ */
+
+IX_STATUS ixNpeMhConfigOutFifoRead (
+ IxNpeMhNpeId npeId,
+ IxNpeMhMessage *message)
+{
+ volatile UINT32 *npeOutFifo =
+ (UINT32 *)ixNpeMhConfigNpeInfo[npeId].outFifoRegister;
+ UINT32 retriesCount = 0;
+
+ /* read the first word of the message from the NPE's outFIFO */
+ IX_NPEMH_REGISTER_READ (npeOutFifo, &message->data[0]);
+
+ /* need to wait for NPE to write second word - see SCR #493
+ poll for maximum number of retries, if exceed maximum
+ retries, exit from while loop */
+ while ((IX_NPE_MH_MAX_NUM_OF_RETRIES > retriesCount)
+ && ixNpeMhConfigOutFifoIsEmpty (npeId))
+ {
+ retriesCount++;
+ }
+
+ /* Return TIMEOUT status to caller, indicate that NPE Hang / Halt */
+ if (IX_NPE_MH_MAX_NUM_OF_RETRIES == retriesCount)
+ {
+ return IX_NPEMH_CRITICAL_NPE_ERR;
+ }
+
+ /* read the second word of the message from the NPE's outFIFO */
+ IX_NPEMH_REGISTER_READ (npeOutFifo, &message->data[1]);
+
+ /* record in the stats the maximum number of retries needed */
+ if (ixNpeMhConfigStats[npeId].maxOutFifoEmptyRetries < retriesCount)
+ {
+ ixNpeMhConfigStats[npeId].maxOutFifoEmptyRetries = retriesCount;
+ }
+
+ /* update statistical info */
+ ixNpeMhConfigStats[npeId].outFifoReads++;
+
+ return IX_SUCCESS;
+}
+
+/*
+ * Function definition: ixNpeMhConfigShow
+ */
+
+void ixNpeMhConfigShow (
+ IxNpeMhNpeId npeId)
+{
+ /* show the message fifo read counter */
+ IX_NPEMH_SHOW ("Message FIFO reads",
+ ixNpeMhConfigStats[npeId].outFifoReads);
+
+ /* show the message fifo write counter */
+ IX_NPEMH_SHOW ("Message FIFO writes",
+ ixNpeMhConfigStats[npeId].inFifoWrites);
+
+ /* show the max retries performed when inFIFO full */
+ IX_NPEMH_SHOW ("Max inFIFO Full retries",
+ ixNpeMhConfigStats[npeId].maxInFifoFullRetries);
+
+ /* show the max retries performed when outFIFO empty */
+ IX_NPEMH_SHOW ("Max outFIFO Empty retries",
+ ixNpeMhConfigStats[npeId].maxOutFifoEmptyRetries);
+
+ /* show the current status of the inFifo */
+ ixOsalLog (IX_OSAL_LOG_LVL_USER, IX_OSAL_LOG_DEV_STDOUT,
+ "InFifo is %s and %s\n",
+ (ixNpeMhConfigInFifoIsEmpty (npeId) ?
+ (int) "EMPTY" : (int) "NOT EMPTY"),
+ (ixNpeMhConfigInFifoIsFull (npeId) ?
+ (int) "FULL" : (int) "NOT FULL"),
+ 0, 0, 0, 0);
+
+ /* show the current status of the outFifo */
+ ixOsalLog (IX_OSAL_LOG_LVL_USER, IX_OSAL_LOG_DEV_STDOUT,
+ "OutFifo is %s and %s\n",
+ (ixNpeMhConfigOutFifoIsEmpty (npeId) ?
+ (int) "EMPTY" : (int) "NOT EMPTY"),
+ (ixNpeMhConfigOutFifoIsFull (npeId) ?
+ (int) "FULL" : (int) "NOT FULL"),
+ 0, 0, 0, 0);
+}
+
+/*
+ * Function definition: ixNpeMhConfigShowReset
+ */
+
+void ixNpeMhConfigShowReset (
+ IxNpeMhNpeId npeId)
+{
+ /* reset the message fifo read counter */
+ ixNpeMhConfigStats[npeId].outFifoReads = 0;
+
+ /* reset the message fifo write counter */
+ ixNpeMhConfigStats[npeId].inFifoWrites = 0;
+
+ /* reset the max inFIFO Full retries counter */
+ ixNpeMhConfigStats[npeId].maxInFifoFullRetries = 0;
+
+ /* reset the max outFIFO empty retries counter */
+ ixNpeMhConfigStats[npeId].maxOutFifoEmptyRetries = 0;
+}
+
+