diff options
Diffstat (limited to 'drivers/net/npe/IxEthDBEvents.c')
| -rw-r--r-- | drivers/net/npe/IxEthDBEvents.c | 496 |
1 files changed, 0 insertions, 496 deletions
diff --git a/drivers/net/npe/IxEthDBEvents.c b/drivers/net/npe/IxEthDBEvents.c deleted file mode 100644 index 5b3be0b..0000000 --- a/drivers/net/npe/IxEthDBEvents.c +++ /dev/null @@ -1,496 +0,0 @@ -/** - * @file IxEthDBEvents.c - * - * @brief Implementation of the event processor component - * - * @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 -- - */ - -#include <IxNpeMh.h> -#include <IxFeatureCtrl.h> - -#include "IxEthDB_p.h" - -/* forward prototype declarations */ -IX_ETH_DB_PUBLIC void ixEthDBEventProcessorLoop(void *); -IX_ETH_DB_PUBLIC void ixEthDBNPEEventCallback(IxNpeMhNpeId npeID, IxNpeMhMessage msg); -IX_ETH_DB_PRIVATE void ixEthDBProcessEvent(PortEvent *local_event, IxEthDBPortMap triggerPorts); -IX_ETH_DB_PRIVATE IxEthDBStatus ixEthDBTriggerPortUpdate(UINT32 eventType, IxEthDBMacAddr *macAddr, IxEthDBPortId portID, BOOL staticEntry); -IX_ETH_DB_PUBLIC IxEthDBStatus ixEthDBStartLearningFunction(void); -IX_ETH_DB_PUBLIC IxEthDBStatus ixEthDBStopLearningFunction(void); - -/* data */ -IX_ETH_DB_PRIVATE IxOsalSemaphore eventQueueSemaphore; -IX_ETH_DB_PRIVATE PortEventQueue eventQueue; -IX_ETH_DB_PRIVATE IxOsalMutex eventQueueLock; -IX_ETH_DB_PRIVATE IxOsalMutex portUpdateLock; - -IX_ETH_DB_PRIVATE BOOL ixEthDBLearningShutdown = false; -IX_ETH_DB_PRIVATE BOOL ixEthDBEventProcessorRunning = false; - -/* imported data */ -extern HashTable dbHashtable; - -/** - * @brief initializes the event processor - * - * Initializes the event processor queue and processing thread. - * Called from ixEthDBInit() DB-subcomponent master init function. - * - * @warning do not call directly - * - * @retval IX_ETH_DB_SUCCESS initialization was successful - * @retval IX_ETH_DB_FAIL initialization failed (OSAL or mutex init failure) - * - * @internal - */ -IX_ETH_DB_PUBLIC -IxEthDBStatus ixEthDBEventProcessorInit(void) -{ - if (ixOsalMutexInit(&portUpdateLock) != IX_SUCCESS) - { - return IX_ETH_DB_FAIL; - } - - if (ixOsalMutexInit(&eventQueueLock) != IX_SUCCESS) - { - return IX_ETH_DB_FAIL; - } - - if (IX_FEATURE_CTRL_SWCONFIG_ENABLED == - ixFeatureCtrlSwConfigurationCheck (IX_FEATURECTRL_ETH_LEARNING)) - { - - /* start processor loop thread */ - if (ixEthDBStartLearningFunction() != IX_ETH_DB_SUCCESS) - { - return IX_ETH_DB_FAIL; - } - } - - return IX_ETH_DB_SUCCESS; -} - -/** - * @brief initializes the event queue and the event processor - * - * This function is called by the component initialization - * function, ixEthDBInit(). - * - * @warning do not call directly - * - * @return IX_ETH_DB_SUCCESS if the operation completed - * successfully or IX_ETH_DB_FAIL otherwise - * - * @internal - */ -IX_ETH_DB_PUBLIC -IxEthDBStatus ixEthDBStartLearningFunction(void) -{ - IxOsalThread eventProcessorThread; - IxOsalThreadAttr threadAttr; - - threadAttr.name = "EthDB event thread"; - threadAttr.stackSize = 32 * 1024; /* 32kbytes */ - threadAttr.priority = 128; - - /* reset event queue */ - ixOsalMutexLock(&eventQueueLock, IX_OSAL_WAIT_FOREVER); - - RESET_QUEUE(&eventQueue); - - ixOsalMutexUnlock(&eventQueueLock); - - /* init event queue semaphore */ - if (ixOsalSemaphoreInit(&eventQueueSemaphore, 0) != IX_SUCCESS) - { - return IX_ETH_DB_FAIL; - } - - ixEthDBLearningShutdown = false; - - /* create processor loop thread */ - if (ixOsalThreadCreate(&eventProcessorThread, &threadAttr, ixEthDBEventProcessorLoop, NULL) != IX_SUCCESS) - { - return IX_ETH_DB_FAIL; - } - - /* start event processor */ - ixOsalThreadStart(&eventProcessorThread); - - return IX_ETH_DB_SUCCESS; -} - -/** - * @brief stops the event processor - * - * Stops the event processor and frees the event queue semaphore - * Called by the component de-initialization function, ixEthDBUnload() - * - * @warning do not call directly - * - * @return IX_ETH_DB_SUCCESS if the operation completed - * successfully or IX_ETH_DB_FAIL otherwise; - * - * @internal - */ -IX_ETH_DB_PUBLIC -IxEthDBStatus ixEthDBStopLearningFunction(void) -{ - ixEthDBLearningShutdown = true; - - /* wake up event processing loop to actually process the shutdown event */ - ixOsalSemaphorePost(&eventQueueSemaphore); - - if (ixOsalSemaphoreDestroy(&eventQueueSemaphore) != IX_SUCCESS) - { - return IX_ETH_DB_FAIL; - } - - return IX_ETH_DB_SUCCESS; -} - -/** - * @brief default NPE event processing callback - * - * @param npeID ID of the NPE that generated the event - * @param msg NPE message (encapsulated event) - * - * Creates an event object on the Ethernet event processor queue - * and signals the new event by incrementing the event queue semaphore. - * Events are processed by @ref ixEthDBEventProcessorLoop() which runs - * at user level. - * - * @see ixEthDBEventProcessorLoop() - * - * @warning do not call directly - * - * @internal - */ -IX_ETH_DB_PUBLIC -void ixEthDBNPEEventCallback(IxNpeMhNpeId npeID, IxNpeMhMessage msg) -{ - PortEvent *local_event; - - IX_ETH_DB_IRQ_EVENTS_TRACE("DB: (Events) new event received by processor callback from port %d, id 0x%X\n", IX_ETH_DB_NPE_TO_PORT_ID(npeID), NPE_MSG_ID(msg), 0, 0, 0, 0); - - if (CAN_ENQUEUE(&eventQueue)) - { - TEST_FIXTURE_LOCK_EVENT_QUEUE; - - local_event = QUEUE_HEAD(&eventQueue); - - /* create event structure on queue */ - local_event->eventType = NPE_MSG_ID(msg); - local_event->portID = IX_ETH_DB_NPE_TO_PORT_ID(npeID); - - /* update queue */ - PUSH_UPDATE_QUEUE(&eventQueue); - - TEST_FIXTURE_UNLOCK_EVENT_QUEUE; - - IX_ETH_DB_IRQ_EVENTS_TRACE("DB: (Events) Waking up main processor loop...\n", 0, 0, 0, 0, 0, 0); - - /* increment event queue semaphore */ - ixOsalSemaphorePost(&eventQueueSemaphore); - } - else - { - IX_ETH_DB_IRQ_EVENTS_TRACE("DB: (Events) Warning: could not enqueue event (overflow)\n", 0, 0, 0, 0, 0, 0); - } -} - -/** - * @brief Ethernet event processor loop - * - * Extracts at most EVENT_PROCESSING_LIMIT batches of events and - * sends them for processing to @ref ixEthDBProcessEvent(). - * Triggers port updates which normally follow learning events. - * - * @warning do not call directly, executes in separate thread - * - * @internal - */ -IX_ETH_DB_PUBLIC -void ixEthDBEventProcessorLoop(void *unused1) -{ - IxEthDBPortMap triggerPorts; - IxEthDBPortId portIndex; - - ixEthDBEventProcessorRunning = true; - - IX_ETH_DB_EVENTS_TRACE("DB: (Events) Event processor loop was started\n"); - - while (!ixEthDBLearningShutdown) - { - BOOL keepProcessing = true; - UINT32 processedEvents = 0; - - IX_ETH_DB_EVENTS_VERBOSE_TRACE("DB: (Events) Waiting for new learning event...\n"); - - ixOsalSemaphoreWait(&eventQueueSemaphore, IX_OSAL_WAIT_FOREVER); - - IX_ETH_DB_EVENTS_VERBOSE_TRACE("DB: (Events) Received new event\n"); - - if (!ixEthDBLearningShutdown) - { - /* port update handling */ - SET_EMPTY_DEPENDENCY_MAP(triggerPorts); - - while (keepProcessing) - { - PortEvent local_event; - UINT32 intLockKey; - - /* lock queue */ - ixOsalMutexLock(&eventQueueLock, IX_OSAL_WAIT_FOREVER); - - /* lock NPE interrupts */ - intLockKey = ixOsalIrqLock(); - - /* extract event */ - local_event = *(QUEUE_TAIL(&eventQueue)); - - SHIFT_UPDATE_QUEUE(&eventQueue); - - ixOsalIrqUnlock(intLockKey); - - ixOsalMutexUnlock(&eventQueueLock); - - IX_ETH_DB_EVENTS_TRACE("DB: (Events) Processing event with ID 0x%X\n", local_event.eventType); - - ixEthDBProcessEvent(&local_event, triggerPorts); - - processedEvents++; - - if (processedEvents > EVENT_PROCESSING_LIMIT /* maximum burst reached? */ - || ixOsalSemaphoreTryWait(&eventQueueSemaphore) != IX_SUCCESS) /* or empty queue? */ - { - keepProcessing = false; - } - } - - ixEthDBUpdatePortLearningTrees(triggerPorts); - } - } - - /* turn off automatic updates */ - for (portIndex = 0 ; portIndex < IX_ETH_DB_NUMBER_OF_PORTS ; portIndex++) - { - ixEthDBPortInfo[portIndex].updateMethod.updateEnabled = false; - } - - ixEthDBEventProcessorRunning = false; -} - -/** - * @brief event processor routine - * - * @param event event to be processed - * @param triggerPorts port map accumulating ports to be updated - * - * Processes learning events by synchronizing the database with - * newly learnt data. Called only by @ref ixEthDBEventProcessorLoop(). - * - * @warning do not call directly - * - * @internal - */ -IX_ETH_DB_PRIVATE -void ixEthDBProcessEvent(PortEvent *local_event, IxEthDBPortMap triggerPorts) -{ - MacDescriptor recordTemplate; - - switch (local_event->eventType) - { - case IX_ETH_DB_ADD_FILTERING_RECORD: - /* add record */ - memset(&recordTemplate, 0, sizeof (recordTemplate)); - memcpy(recordTemplate.macAddress, local_event->macAddr.macAddress, sizeof (IxEthDBMacAddr)); - - recordTemplate.type = IX_ETH_DB_FILTERING_RECORD; - recordTemplate.portID = local_event->portID; - recordTemplate.recordData.filteringData.staticEntry = local_event->staticEntry; - - ixEthDBAdd(&recordTemplate, triggerPorts); - - IX_ETH_DB_EVENTS_TRACE("DB: (Events) Added record on port %d\n", local_event->portID); - - break; - - case IX_ETH_DB_REMOVE_FILTERING_RECORD: - /* remove record */ - memset(&recordTemplate, 0, sizeof (recordTemplate)); - memcpy(recordTemplate.macAddress, local_event->macAddr.macAddress, sizeof (IxEthDBMacAddr)); - - recordTemplate.type = IX_ETH_DB_FILTERING_RECORD | IX_ETH_DB_FILTERING_VLAN_RECORD; - - ixEthDBRemove(&recordTemplate, triggerPorts); - - IX_ETH_DB_EVENTS_TRACE("DB: (Events) Removed record on port %d\n", local_event->portID); - - break; - - default: - /* can't handle/not interested in this event type */ - ERROR_LOG("DB: (Events) Event processor received an unknown event type (0x%X)\n", local_event->eventType); - - return; - } -} - -/** - * @brief asynchronously adds a filtering record - * by posting an ADD_FILTERING_RECORD event to the event queue - * - * @param macAddr MAC address of the new record - * @param portID port ID of the new record - * @param staticEntry true if record is static, false if dynamic - * - * @return IX_ETH_DB_SUCCESS if the event creation was - * successfull or IX_ETH_DB_BUSY if the event queue is full - * - * @internal - */ -IX_ETH_DB_PUBLIC -IxEthDBStatus ixEthDBTriggerAddPortUpdate(IxEthDBMacAddr *macAddr, IxEthDBPortId portID, BOOL staticEntry) -{ - MacDescriptor reference; - - TEST_FIXTURE_INCREMENT_DB_CORE_ACCESS_COUNTER; - - /* fill search fields */ - memcpy(reference.macAddress, macAddr, sizeof (IxEthDBMacAddr)); - reference.portID = portID; - - /* set acceptable record types */ - reference.type = IX_ETH_DB_ALL_FILTERING_RECORDS; - - if (ixEthDBPeekHashEntry(&dbHashtable, IX_ETH_DB_MAC_PORT_KEY, &reference) == IX_ETH_DB_SUCCESS) - { - /* already have an identical record */ - return IX_ETH_DB_SUCCESS; - } - else - { - return ixEthDBTriggerPortUpdate(IX_ETH_DB_ADD_FILTERING_RECORD, macAddr, portID, staticEntry); - } -} - -/** - * @brief asynchronously removes a filtering record - * by posting a REMOVE_FILTERING_RECORD event to the event queue - * - * @param macAddr MAC address of the record to remove - * @param portID port ID of the record to remove - * - * @return IX_ETH_DB_SUCCESS if the event creation was - * successfull or IX_ETH_DB_BUSY if the event queue is full - * - * @internal - */ -IX_ETH_DB_PUBLIC -IxEthDBStatus ixEthDBTriggerRemovePortUpdate(IxEthDBMacAddr *macAddr, IxEthDBPortId portID) -{ - if (ixEthDBPeek(macAddr, IX_ETH_DB_ALL_FILTERING_RECORDS) != IX_ETH_DB_NO_SUCH_ADDR) - { - return ixEthDBTriggerPortUpdate(IX_ETH_DB_REMOVE_FILTERING_RECORD, macAddr, portID, false); - } - else - { - return IX_ETH_DB_NO_SUCH_ADDR; - } -} - -/** - * @brief adds an ADD or REMOVE event to the main event queue - * - * @param eventType event type - IX_ETH_DB_ADD_FILTERING_RECORD - * to add and IX_ETH_DB_REMOVE_FILTERING_RECORD to remove a - * record. - * - * @return IX_ETH_DB_SUCCESS if the event was successfully - * sent or IX_ETH_DB_BUSY if the event queue is full - * - * @internal - */ -IX_ETH_DB_PRIVATE -IxEthDBStatus ixEthDBTriggerPortUpdate(UINT32 eventType, IxEthDBMacAddr *macAddr, IxEthDBPortId portID, BOOL staticEntry) -{ - UINT32 intLockKey; - - /* lock interrupts to protect queue */ - intLockKey = ixOsalIrqLock(); - - if (CAN_ENQUEUE(&eventQueue)) - { - PortEvent *queueEvent = QUEUE_HEAD(&eventQueue); - - /* update fields on the queue */ - memcpy(queueEvent->macAddr.macAddress, macAddr->macAddress, sizeof (IxEthDBMacAddr)); - - queueEvent->eventType = eventType; - queueEvent->portID = portID; - queueEvent->staticEntry = staticEntry; - - PUSH_UPDATE_QUEUE(&eventQueue); - - /* imcrement event queue semaphore */ - ixOsalSemaphorePost(&eventQueueSemaphore); - - /* unlock interrupts */ - ixOsalIrqUnlock(intLockKey); - - return IX_ETH_DB_SUCCESS; - } - else /* event queue full */ - { - /* unlock interrupts */ - ixOsalIrqUnlock(intLockKey); - - return IX_ETH_DB_BUSY; - } -} - -/** - * @brief Locks learning tree updates and port disable - * - * - * This function locks portUpdateLock single mutex. It is primarily used - * to avoid executing 'port disable' during ELT maintenance. - * - * @internal - */ -IX_ETH_DB_PUBLIC -void ixEthDBUpdateLock(void) -{ - ixOsalMutexLock(&portUpdateLock, IX_OSAL_WAIT_FOREVER); -} - -/** - * @brief Unlocks learning tree updates and port disable - * - * - * This function unlocks a portUpdateLock mutex. It is primarily used - * to avoid executing 'port disable' during ELT maintenance. - * - * @internal - */ -IX_ETH_DB_PUBLIC -void ixEthDBUpdateUnlock(void) -{ - ixOsalMutexUnlock(&portUpdateLock); -} - |