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Diffstat (limited to 'cpu/ixp/npe/IxNpeMhSolicitedCbMgr.c')
| -rw-r--r-- | cpu/ixp/npe/IxNpeMhSolicitedCbMgr.c | 358 |
1 files changed, 0 insertions, 358 deletions
diff --git a/cpu/ixp/npe/IxNpeMhSolicitedCbMgr.c b/cpu/ixp/npe/IxNpeMhSolicitedCbMgr.c deleted file mode 100644 index 8e083a6..0000000 --- a/cpu/ixp/npe/IxNpeMhSolicitedCbMgr.c +++ /dev/null @@ -1,358 +0,0 @@ -/** - * @file IxNpeMhSolicitedCbMgr.c - * - * @author Intel Corporation - * @date 18 Jan 2002 - * - * @brief This file contains the implementation of the private API for the - * Solicited 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 -- -*/ -#ifndef IXNPEMHCONFIG_P_H -# define IXNPEMHSOLICITEDCBMGR_C -#else -# error "Error, IxNpeMhConfig_p.h should not be included before this definition." -#endif - -/* - * Put the system defined include files required. - */ - - -/* - * Put the user defined include files required. - */ - -#include "IxOsal.h" - -#include "IxNpeMhMacros_p.h" -#include "IxNpeMhSolicitedCbMgr_p.h" -#include "IxNpeMhConfig_p.h" -/* - * #defines and macros used in this file. - */ - -/* - * Typedefs whose scope is limited to this file. - */ - -/** - * @struct IxNpeMhSolicitedCallbackListEntry - * - * @brief This structure is used to store the information associated with - * an entry in the callback list. This consists of the ID of the send - * message (which indicates the ID of the corresponding response message) - * and the callback function pointer itself. - * - */ - -typedef struct IxNpeMhSolicitedCallbackListEntry -{ - /** message ID */ - IxNpeMhMessageId messageId; - - /** callback function pointer */ - IxNpeMhCallback callback; - - /** pointer to next entry in the list */ - struct IxNpeMhSolicitedCallbackListEntry *next; -} IxNpeMhSolicitedCallbackListEntry; - -/** - * @struct IxNpeMhSolicitedCallbackList - * - * @brief This structure is used to maintain the list of response - * callbacks. The number of entries in this list will be variable, and - * they will be stored in a linked list fashion for ease of addition and - * removal. The entries themselves are statically allocated, and are - * organised into a "free" list and a "callback" list. Adding an entry - * means taking an entry from the "free" list and adding it to the - * "callback" list. Removing an entry means removing it from the - * "callback" list and returning it to the "free" list. - */ - -typedef struct -{ - /** pointer to the head of the free list */ - IxNpeMhSolicitedCallbackListEntry *freeHead; - - /** pointer to the head of the callback list */ - IxNpeMhSolicitedCallbackListEntry *callbackHead; - - /** pointer to the tail of the callback list */ - IxNpeMhSolicitedCallbackListEntry *callbackTail; - - /** array of entries - the first entry is used as a dummy entry to */ - /* avoid the scenario of having an empty list, hence '+ 1' */ - IxNpeMhSolicitedCallbackListEntry entries[IX_NPEMH_MAX_CALLBACKS + 1]; -} IxNpeMhSolicitedCallbackList; - -/** - * @struct IxNpeMhSolicitedCbMgrStats - * - * @brief This structure is used to maintain statistics for the Solicited - * Callback Manager module. - */ - -typedef struct -{ - UINT32 saves; /**< callback list saves */ - UINT32 retrieves; /**< callback list retrieves */ -} IxNpeMhSolicitedCbMgrStats; - -/* - * Variable declarations global to this file only. Externs are followed by - * static variables. - */ - -PRIVATE IxNpeMhSolicitedCallbackList -ixNpeMhSolicitedCbMgrCallbackLists[IX_NPEMH_NUM_NPES]; - -PRIVATE IxNpeMhSolicitedCbMgrStats -ixNpeMhSolicitedCbMgrStats[IX_NPEMH_NUM_NPES]; - -/* - * Extern function prototypes. - */ - -/* - * Static function prototypes. - */ - -/* - * Function definition: ixNpeMhSolicitedCbMgrInitialize - */ - -void ixNpeMhSolicitedCbMgrInitialize (void) -{ - IxNpeMhNpeId npeId; - UINT32 localIndex; - IxNpeMhSolicitedCallbackList *list = NULL; - - IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Entering " - "ixNpeMhSolicitedCbMgrInitialize\n"); - - /* for each NPE ... */ - for (npeId = 0; npeId < IX_NPEMH_NUM_NPES; npeId++) - { - /* initialise a pointer to the list for convenience */ - list = &ixNpeMhSolicitedCbMgrCallbackLists[npeId]; - - /* for each entry in the list, after the dummy entry ... */ - for (localIndex = 1; localIndex <= IX_NPEMH_MAX_CALLBACKS; localIndex++) - { - /* initialise the entry */ - list->entries[localIndex].messageId = 0x00; - list->entries[localIndex].callback = NULL; - - /* if this entry is before the last entry */ - if (localIndex < IX_NPEMH_MAX_CALLBACKS) - { - /* chain this entry to the following entry */ - list->entries[localIndex].next = &(list->entries[localIndex + 1]); - } - else /* this entry is the last entry */ - { - /* the last entry isn't chained to anything */ - list->entries[localIndex].next = NULL; - } - } - - /* set the free list pointer to point to the first real entry */ - /* (all real entries begin chained together on the free list) */ - list->freeHead = &(list->entries[1]); - - /* set the callback list pointers to point to the dummy entry */ - /* (the callback list is initially empty) */ - list->callbackHead = &(list->entries[0]); - list->callbackTail = &(list->entries[0]); - } - - IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Exiting " - "ixNpeMhSolicitedCbMgrInitialize\n"); -} - -/* - * Function definition: ixNpeMhSolicitedCbMgrCallbackSave - */ - -IX_STATUS ixNpeMhSolicitedCbMgrCallbackSave ( - IxNpeMhNpeId npeId, - IxNpeMhMessageId solicitedMessageId, - IxNpeMhCallback solicitedCallback) -{ - IxNpeMhSolicitedCallbackList *list = NULL; - IxNpeMhSolicitedCallbackListEntry *callbackEntry = NULL; - - IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Entering " - "ixNpeMhSolicitedCbMgrCallbackSave\n"); - - /* initialise a pointer to the list for convenience */ - list = &ixNpeMhSolicitedCbMgrCallbackLists[npeId]; - - /* check to see if there are any entries in the free list */ - if (list->freeHead == NULL) - { - IX_NPEMH_ERROR_REPORT ("Solicited callback list is full\n"); - return IX_FAIL; - } - - /* there is an entry in the free list we can use */ - - /* update statistical info */ - ixNpeMhSolicitedCbMgrStats[npeId].saves++; - - /* remove a callback entry from the start of the free list */ - callbackEntry = list->freeHead; - list->freeHead = callbackEntry->next; - - /* fill in the callback entry with the new data */ - callbackEntry->messageId = solicitedMessageId; - callbackEntry->callback = solicitedCallback; - - /* the new callback entry will be added to the tail of the callback */ - /* list, so it isn't chained to anything */ - callbackEntry->next = NULL; - - /* chain new callback entry to the last entry of the callback list */ - list->callbackTail->next = callbackEntry; - list->callbackTail = callbackEntry; - - IX_NPEMH_TRACE0 (IX_NPEMH_FN_ENTRY_EXIT, "Exiting " - "ixNpeMhSolicitedCbMgrCallbackSave\n"); - - return IX_SUCCESS; -} - -/* - * Function definition: ixNpeMhSolicitedCbMgrCallbackRetrieve - */ - -void ixNpeMhSolicitedCbMgrCallbackRetrieve ( - IxNpeMhNpeId npeId, - IxNpeMhMessageId solicitedMessageId, - IxNpeMhCallback *solicitedCallback) -{ - IxNpeMhSolicitedCallbackList *list = NULL; - IxNpeMhSolicitedCallbackListEntry *callbackEntry = NULL; - IxNpeMhSolicitedCallbackListEntry *previousEntry = NULL; - - /* initialise a pointer to the list for convenience */ - list = &ixNpeMhSolicitedCbMgrCallbackLists[npeId]; - - /* initialise the callback entry to the first entry of the callback */ - /* list - we must skip over the dummy entry, which is the previous */ - callbackEntry = list->callbackHead->next; - previousEntry = list->callbackHead; - - /* traverse the callback list looking for an entry with a matching */ - /* message ID. note we also save the previous entry's pointer to */ - /* allow us to unchain the matching entry from the callback list */ - while ((callbackEntry != NULL) && - (callbackEntry->messageId != solicitedMessageId)) - { - previousEntry = callbackEntry; - callbackEntry = callbackEntry->next; - } - - /* if we didn't find a matching callback entry */ - if (callbackEntry == NULL) - { - /* return a NULL callback in the outgoing parameter */ - *solicitedCallback = NULL; - } - else /* we found a matching callback entry */ - { - /* update statistical info */ - ixNpeMhSolicitedCbMgrStats[npeId].retrieves++; - - /* return the callback in the outgoing parameter */ - *solicitedCallback = callbackEntry->callback; - - /* unchain callback entry by chaining previous entry to next */ - previousEntry->next = callbackEntry->next; - - /* if the callback entry is at the tail of the list */ - if (list->callbackTail == callbackEntry) - { - /* update the tail of the callback list */ - list->callbackTail = previousEntry; - } - - /* re-initialise the callback entry */ - callbackEntry->messageId = 0x00; - callbackEntry->callback = NULL; - - /* add the callback entry to the start of the free list */ - callbackEntry->next = list->freeHead; - list->freeHead = callbackEntry; - } -} - -/* - * Function definition: ixNpeMhSolicitedCbMgrShow - */ - -void ixNpeMhSolicitedCbMgrShow ( - IxNpeMhNpeId npeId) -{ - /* show the solicited callback list save counter */ - IX_NPEMH_SHOW ("Solicited callback list saves", - ixNpeMhSolicitedCbMgrStats[npeId].saves); - - /* show the solicited callback list retrieve counter */ - IX_NPEMH_SHOW ("Solicited callback list retrieves", - ixNpeMhSolicitedCbMgrStats[npeId].retrieves); -} - -/* - * Function definition: ixNpeMhSolicitedCbMgrShowReset - */ - -void ixNpeMhSolicitedCbMgrShowReset ( - IxNpeMhNpeId npeId) -{ - /* reset the solicited callback list save counter */ - ixNpeMhSolicitedCbMgrStats[npeId].saves = 0; - - /* reset the solicited callback list retrieve counter */ - ixNpeMhSolicitedCbMgrStats[npeId].retrieves = 0; -} |