diff options
Diffstat (limited to 'drivers/net/npe/IxNpeMhConfig.c')
| -rw-r--r-- | drivers/net/npe/IxNpeMhConfig.c | 584 |
1 files changed, 0 insertions, 584 deletions
diff --git a/drivers/net/npe/IxNpeMhConfig.c b/drivers/net/npe/IxNpeMhConfig.c deleted file mode 100644 index eaa9a21..0000000 --- a/drivers/net/npe/IxNpeMhConfig.c +++ /dev/null @@ -1,584 +0,0 @@ -/** - * @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 - * SPDX-License-Identifier: BSD-3-Clause - * @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; -} - - |