* Update Intel IXP4xx support

- Add IXP4xx NPE ethernet MAC support
- Add support for Intel IXDPG425 board
- Add support for Prodrive PDNB3 board
- Add IRQ support
Patch by Stefan Roese, 23 May 2006

[This patch does not include cpu/ixp/npe/IxNpeMicrocode.c which still
 sufferes from licensing issues. Blame Intel.]

1 files changed, 327 insertions, 0 deletions

diff --git a/cpu/ixp/npe/IxEthDBSearch.c b/cpu/ixp/npe/IxEthDBSearch.c
new file mode 100644
index 0000000..4a10878
--- /dev/null
+++ b/cpu/ixp/npe/IxEthDBSearch.c
@@ -0,0 +1,327 @@
+/**
+ * @file IxEthDBSearch.c
+ * 
+ * @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 --
+ */
+
+#include "IxEthDB_p.h"
+
+extern HashTable dbHashtable;
+
+/**
+ * @brief matches two database records based on their MAC addresses
+ *
+ * @param untypedReference record to match against
+ * @param untypedEntry record to match
+ *
+ * @return TRUE if the match is successful or FALSE otherwise
+ *
+ * @internal
+ */
+IX_ETH_DB_PUBLIC
+BOOL ixEthDBAddressRecordMatch(void *untypedReference, void *untypedEntry)
+{
+    MacDescriptor *entry     = (MacDescriptor *) untypedEntry;
+    MacDescriptor *reference = (MacDescriptor *) untypedReference;
+    
+    /* check accepted record types */
+    if ((entry->type & reference->type) == 0) return FALSE;
+       
+    return (ixEthDBAddressCompare((UINT8 *) entry->macAddress, (UINT8 *) reference->macAddress) == 0);
+}
+
+/**
+ * @brief matches two database records based on their MAC addresses
+ * and VLAN IDs
+ *
+ * @param untypedReference record to match against
+ * @param untypedEntry record to match
+ *
+ * @return TRUE if the match is successful or FALSE otherwise
+ *
+ * @internal
+ */
+IX_ETH_DB_PUBLIC
+BOOL ixEthDBVlanRecordMatch(void *untypedReference, void *untypedEntry)
+{
+    MacDescriptor *entry     = (MacDescriptor *) untypedEntry;
+    MacDescriptor *reference = (MacDescriptor *) untypedReference;
+    
+    /* check accepted record types */
+    if ((entry->type & reference->type) == 0) return FALSE;
+    
+    return (IX_ETH_DB_GET_VLAN_ID(entry->recordData.filteringVlanData.ieee802_1qTag) ==
+        IX_ETH_DB_GET_VLAN_ID(reference->recordData.filteringVlanData.ieee802_1qTag)) &&
+        (ixEthDBAddressCompare(entry->macAddress, reference->macAddress) == 0);
+}
+
+/**
+ * @brief matches two database records based on their MAC addresses
+ * and port IDs
+ *
+ * @param untypedReference record to match against
+ * @param untypedEntry record to match
+ *
+ * @return TRUE if the match is successful or FALSE otherwise
+ *
+ * @internal
+ */
+IX_ETH_DB_PUBLIC
+BOOL ixEthDBPortRecordMatch(void *untypedReference, void *untypedEntry)
+{
+    MacDescriptor *entry     = (MacDescriptor *) untypedEntry;
+    MacDescriptor *reference = (MacDescriptor *) untypedReference;
+    
+    /* check accepted record types */
+    if ((entry->type & reference->type) == 0) return FALSE;
+    
+    return (entry->portID == reference->portID) &&
+        (ixEthDBAddressCompare(entry->macAddress, reference->macAddress) == 0);
+}
+
+/**
+ * @brief dummy matching function, registered for safety
+ *
+ * @param reference record to match against (unused)
+ * @param entry record to match (unused)
+ *
+ * This function is registered in the matching functions
+ * array on invalid types. Calling it will display an 
+ * error message, indicating an error in the component logic.
+ *
+ * @return FALSE
+ *
+ * @internal
+ */
+IX_ETH_DB_PUBLIC
+BOOL ixEthDBNullMatch(void *reference, void *entry)
+{
+    /* display an error message */
+
+    ixOsalLog(IX_OSAL_LOG_LVL_WARNING, IX_OSAL_LOG_DEV_STDOUT, "DB: (Search) The NullMatch function was called, wrong key type?\n", 0, 0, 0, 0, 0, 0);
+
+
+    return FALSE;
+}
+
+/**
+ * @brief registers hash matching methods
+ *
+ * @param matchFunctions table of match functions to be populated
+ *
+ * This function registers the available record matching functions
+ * by indexing them on record types into the given function array.
+ * 
+ * Note that it is compulsory to call this in ixEthDBInit(), 
+ * otherwise hashtable searching and removal will not work
+ *
+ * @return number of registered functions
+ *
+ * @internal
+ */
+IX_ETH_DB_PUBLIC
+UINT32 ixEthDBMatchMethodsRegister(MatchFunction *matchFunctions)
+{
+    UINT32 i;
+    
+    /* safety first */
+    for ( i = 0 ; i < IX_ETH_DB_MAX_KEY_INDEX + 1 ; i++)
+    {
+        matchFunctions[i] = ixEthDBNullMatch;
+    }
+    
+    /* register MAC search method */
+    matchFunctions[IX_ETH_DB_MAC_KEY] = ixEthDBAddressRecordMatch;
+    
+    /* register MAC/PortID search method */
+    matchFunctions[IX_ETH_DB_MAC_PORT_KEY] = ixEthDBPortRecordMatch;
+    
+    /* register MAC/VLAN ID search method */
+    matchFunctions[IX_ETH_DB_MAC_VLAN_KEY] = ixEthDBVlanRecordMatch;
+    
+    return 3; /* three methods */
+}
+
+/**
+ * @brief search a record in the Ethernet datbase
+ *
+ * @param macAddress MAC address to perform the search on
+ * @param typeFilter type of records to consider for matching
+ *
+ * @warning if searching is successful an implicit write lock
+ * to the search result is granted, therefore unlock the 
+ * entry using @ref ixEthDBReleaseHashNode() as soon as possible.
+ *
+ * @see ixEthDBReleaseHashNode()
+ *
+ * @return the search result, or NULL if a record with the given
+ * MAC address was not found
+ *
+ * @internal
+ */
+IX_ETH_DB_PUBLIC
+HashNode* ixEthDBSearch(IxEthDBMacAddr *macAddress, IxEthDBRecordType typeFilter)
+{
+    HashNode *searchResult = NULL;
+    MacDescriptor reference;
+    
+    TEST_FIXTURE_INCREMENT_DB_CORE_ACCESS_COUNTER;
+
+    if (macAddress == NULL)
+    {
+        return NULL;
+    }
+
+    /* fill search fields */
+    memcpy(reference.macAddress, macAddress, sizeof (IxEthDBMacAddr));
+    
+    /* set acceptable record types */
+    reference.type = typeFilter;
+    
+    BUSY_RETRY(ixEthDBSearchHashEntry(&dbHashtable, IX_ETH_DB_MAC_KEY, &reference, &searchResult));
+
+    return searchResult;
+}
+
+IX_ETH_DB_PUBLIC
+IxEthDBStatus ixEthDBPeek(IxEthDBMacAddr *macAddress, IxEthDBRecordType typeFilter)
+{
+    MacDescriptor reference;
+    IxEthDBStatus result;
+    
+    TEST_FIXTURE_INCREMENT_DB_CORE_ACCESS_COUNTER;
+
+    if (macAddress == NULL)
+    {
+        return IX_ETH_DB_INVALID_ARG;
+    }
+
+    /* fill search fields */
+    memcpy(reference.macAddress, macAddress, sizeof (IxEthDBMacAddr));
+    
+    /* set acceptable record types */
+    reference.type = typeFilter;
+    
+    result = ixEthDBPeekHashEntry(&dbHashtable, IX_ETH_DB_MAC_KEY, &reference);
+
+    return result;
+}
+
+/**
+ * @brief search a record in the Ethernet datbase
+ *
+ * @param macAddress MAC address to perform the search on
+ * @param portID port ID to perform the search on
+ * @param typeFilter type of records to consider for matching
+ *
+ * @warning if searching is successful an implicit write lock
+ * to the search result is granted, therefore unlock the 
+ * entry using @ref ixEthDBReleaseHashNode() as soon as possible.
+ *
+ * @see ixEthDBReleaseHashNode()
+ *
+ * @return the search result, or NULL if a record with the given
+ * MAC address/port ID combination was not found
+ *
+ * @internal
+ */
+IX_ETH_DB_PUBLIC
+HashNode* ixEthDBPortSearch(IxEthDBMacAddr *macAddress, IxEthDBPortId portID, IxEthDBRecordType typeFilter)
+{
+    HashNode *searchResult = NULL;
+    MacDescriptor reference;
+    
+    if (macAddress == NULL)
+    {
+        return NULL;
+    }
+    
+    /* fill search fields */
+    memcpy(reference.macAddress, macAddress, sizeof (IxEthDBMacAddr));
+    reference.portID = portID;
+    
+    /* set acceptable record types */
+    reference.type = typeFilter;
+
+    BUSY_RETRY(ixEthDBSearchHashEntry(&dbHashtable, IX_ETH_DB_MAC_PORT_KEY, &reference, &searchResult));
+
+    return searchResult;
+}
+
+/**
+ * @brief search a record in the Ethernet datbase
+ *
+ * @param macAddress MAC address to perform the search on
+ * @param vlanID VLAN ID to perform the search on
+ * @param typeFilter type of records to consider for matching
+ *
+ * @warning if searching is successful an implicit write lock
+ * to the search result is granted, therefore unlock the 
+ * entry using @ref ixEthDBReleaseHashNode() as soon as possible.
+ *
+ * @see ixEthDBReleaseHashNode()
+ *
+ * @return the search result, or NULL if a record with the given
+ * MAC address/VLAN ID combination was not found
+ *
+ * @internal
+ */
+IX_ETH_DB_PUBLIC
+HashNode* ixEthDBVlanSearch(IxEthDBMacAddr *macAddress, IxEthDBVlanId vlanID, IxEthDBRecordType typeFilter)
+{
+    HashNode *searchResult = NULL;
+    MacDescriptor reference;
+    
+    if (macAddress == NULL)
+    {
+        return NULL;
+    }
+    
+    /* fill search fields */
+    memcpy(reference.macAddress, macAddress, sizeof (IxEthDBMacAddr));
+    reference.recordData.filteringVlanData.ieee802_1qTag = 
+            IX_ETH_DB_SET_VLAN_ID(reference.recordData.filteringVlanData.ieee802_1qTag, vlanID);
+    
+    /* set acceptable record types */
+    reference.type = typeFilter;
+
+    BUSY_RETRY(ixEthDBSearchHashEntry(&dbHashtable, IX_ETH_DB_MAC_VLAN_KEY, &reference, &searchResult));
+
+    return searchResult;
+}