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Diffstat (limited to 'cpu/ixp/npe/IxNpeMhUnsolicitedCbMgr.c')
| -rw-r--r-- | cpu/ixp/npe/IxNpeMhUnsolicitedCbMgr.c | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/cpu/ixp/npe/IxNpeMhUnsolicitedCbMgr.c b/cpu/ixp/npe/IxNpeMhUnsolicitedCbMgr.c new file mode 100644 index 0000000000..d37f9f9306 --- /dev/null +++ b/cpu/ixp/npe/IxNpeMhUnsolicitedCbMgr.c @@ -0,0 +1,246 @@ +/** + * @file IxNpeMhUnsolicitedCbMgr.c + * + * @author Intel Corporation + * @date 18 Jan 2002 + * + * @brief This file contains the implementation of the private API for + * the Unsolicited Callback Manager 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 "IxNpeMhUnsolicitedCbMgr_p.h" + + +/* + * #defines and macros used in this file. + */ + +/* + * Typedefs whose scope is limited to this file. + */ + +/** + * @struct IxNpeMhUnsolicitedCallbackTable + * + * @brief This structure is used to maintain the list of registered + * callbacks. One entry exists for each message ID, and a NULL entry will + * signify that no callback has been registered for that ID. + */ + +typedef struct +{ + /** array of entries */ + IxNpeMhCallback entries[IX_NPEMH_MAX_MESSAGE_ID + 1]; +} IxNpeMhUnsolicitedCallbackTable; + +/** + * @struct IxNpeMhUnsolicitedCbMgrStats + * + * @brief This structure is used to maintain statistics for the Unsolicited + * Callback Manager module. + */ + +typedef struct +{ + UINT32 saves; /**< callback table saves */ + UINT32 overwrites; /**< callback table overwrites */ +} IxNpeMhUnsolicitedCbMgrStats; + +/* + * Variable declarations global to this file only. Externs are followed by + * static variables. + */ + +PRIVATE IxNpeMhUnsolicitedCallbackTable +ixNpeMhUnsolicitedCallbackTables[IX_NPEMH_NUM_NPES]; + +PRIVATE IxNpeMhUnsolicitedCbMgrStats +ixNpeMhUnsolicitedCbMgrStats[IX_NPEMH_NUM_NPES]; + +/* + * Extern function prototypes. + */ + +/* + * Static function prototypes. + */ + +/* + * Function definition: ixNpeMhUnsolicitedCbMgrInitialize + */ + +void ixNpeMhUnsolicitedCbMgrInitialize (void) +{ + IxNpeMhNpeId npeId = 0; + IxNpeMhUnsolicitedCallbackTable *table = NULL; + IxNpeMhMessageId messageId = 0; + + IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Entering " + "ixNpeMhUnsolicitedCbMgrInitialize\n"); + + /* for each NPE ... */ + for (npeId = 0; npeId < IX_NPEMH_NUM_NPES; npeId++) + { + /* initialise a pointer to the table for convenience */ + table = &ixNpeMhUnsolicitedCallbackTables[npeId]; + + /* for each message ID ... */ + for (messageId = IX_NPEMH_MIN_MESSAGE_ID; + messageId <= IX_NPEMH_MAX_MESSAGE_ID; messageId++) + { + /* initialise the callback for this message ID to NULL */ + table->entries[messageId] = NULL; + } + } + + IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Exiting " + "ixNpeMhUnsolicitedCbMgrInitialize\n"); +} + +/* + * Function definition: ixNpeMhUnsolicitedCbMgrCallbackSave + */ + +void ixNpeMhUnsolicitedCbMgrCallbackSave ( + IxNpeMhNpeId npeId, + IxNpeMhMessageId unsolicitedMessageId, + IxNpeMhCallback unsolicitedCallback) +{ + IxNpeMhUnsolicitedCallbackTable *table = NULL; + + /* initialise a pointer to the table for convenience */ + table = &ixNpeMhUnsolicitedCallbackTables[npeId]; + + IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Entering " + "ixNpeMhUnsolicitedCbMgrCallbackSave\n"); + + /* update statistical info */ + ixNpeMhUnsolicitedCbMgrStats[npeId].saves++; + + /* check if there is a callback already registered for this NPE and */ + /* message ID */ + if (table->entries[unsolicitedMessageId] != NULL) + { + /* if we are overwriting an existing callback */ + if (unsolicitedCallback != NULL) + { + IX_NPEMH_TRACE2 (IX_NPEMH_DEBUG, "Unsolicited callback " + "overwriting existing callback for NPE ID %d " + "message ID 0x%02X\n", npeId, unsolicitedMessageId); + } + else /* if we are clearing an existing callback */ + { + IX_NPEMH_TRACE2 (IX_NPEMH_DEBUG, "NULL unsolicited callback " + "clearing existing callback for NPE ID %d " + "message ID 0x%02X\n", npeId, unsolicitedMessageId); + } + + /* update statistical info */ + ixNpeMhUnsolicitedCbMgrStats[npeId].overwrites++; + } + + /* save the callback into the table */ + table->entries[unsolicitedMessageId] = unsolicitedCallback; + + IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Exiting " + "ixNpeMhUnsolicitedCbMgrCallbackSave\n"); +} + +/* + * Function definition: ixNpeMhUnsolicitedCbMgrCallbackRetrieve + */ + +void ixNpeMhUnsolicitedCbMgrCallbackRetrieve ( + IxNpeMhNpeId npeId, + IxNpeMhMessageId unsolicitedMessageId, + IxNpeMhCallback *unsolicitedCallback) +{ + IxNpeMhUnsolicitedCallbackTable *table = NULL; + + /* initialise a pointer to the table for convenience */ + table = &ixNpeMhUnsolicitedCallbackTables[npeId]; + + /* retrieve the callback from the table */ + *unsolicitedCallback = table->entries[unsolicitedMessageId]; +} + +/* + * Function definition: ixNpeMhUnsolicitedCbMgrShow + */ + +void ixNpeMhUnsolicitedCbMgrShow ( + IxNpeMhNpeId npeId) +{ + /* show the unsolicited callback table save counter */ + IX_NPEMH_SHOW ("Unsolicited callback table saves", + ixNpeMhUnsolicitedCbMgrStats[npeId].saves); + + /* show the unsolicited callback table overwrite counter */ + IX_NPEMH_SHOW ("Unsolicited callback table overwrites", + ixNpeMhUnsolicitedCbMgrStats[npeId].overwrites); +} + +/* + * Function definition: ixNpeMhUnsolicitedCbMgrShowReset + */ + +void ixNpeMhUnsolicitedCbMgrShowReset ( + IxNpeMhNpeId npeId) +{ + /* reset the unsolicited callback table save counter */ + ixNpeMhUnsolicitedCbMgrStats[npeId].saves = 0; + + /* reset the unsolicited callback table overwrite counter */ + ixNpeMhUnsolicitedCbMgrStats[npeId].overwrites = 0; +} |