+++ /dev/null
-/**
- * @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;
-}
-
-
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