ARM: NET: Remove the IXP NPE ethernet driver

This driver is no longer used, remove it.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Michael Schwingen <michael@schwingen.org>
Cc: Tom Rini <trini@ti.com>

1 files changed, 0 insertions, 618 deletions

diff --git a/drivers/net/npe/IxEthDBHashtable.c b/drivers/net/npe/IxEthDBHashtable.c
deleted file mode 100644
index 9493a5b..0000000
--- a/drivers/net/npe/IxEthDBHashtable.c
+++ /dev/null
@@ -1,618 +0,0 @@
-/**
- * @file ethHash.c
- *
- * @brief Hashtable implementation
- * 
- * @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 "IxEthDB_p.h"
-#include "IxEthDBLocks_p.h"
-
-/**
- * @addtogroup EthDB
- *
- * @{
- */
-
-/**
- * @brief initializes a hash table object
- *
- * @param hashTable uninitialized hash table structure
- * @param numBuckets number of buckets to use
- * @param entryHashFunction hash function used 
- * to hash entire hash node data block (for adding)
- * @param matchFunctions array of match functions, indexed on type,
- * used to differentiate records with the same hash value
- * @param freeFunction function used to free node data blocks
- *
- * Initializes the given hash table object.
- *
- * @internal
- */
-void ixEthDBInitHash(HashTable *hashTable, 
-                     UINT32 numBuckets, 
-                     HashFunction entryHashFunction, 
-                     MatchFunction *matchFunctions, 
-                     FreeFunction freeFunction)
-{
-    UINT32 bucketIndex;
-    UINT32 hashSize = numBuckets * sizeof(HashNode *);
-
-    /* entry hashing, matching and freeing methods */
-    hashTable->entryHashFunction  = entryHashFunction;
-    hashTable->matchFunctions     = matchFunctions;
-    hashTable->freeFunction       = freeFunction;
-
-    /* buckets */
-    hashTable->numBuckets = numBuckets;
-
-    /* set to 0 all buckets */
-    memset(hashTable->hashBuckets, 0, hashSize);
-
-    /* init bucket locks - note that initially all mutexes are unlocked after MutexInit()*/
-    for (bucketIndex = 0 ; bucketIndex < numBuckets ; bucketIndex++)
-    {
-        ixOsalFastMutexInit(&hashTable->bucketLocks[bucketIndex]);
-    }
-}
-
-/**
- * @brief adds an entry to the hash table
- *
- * @param hashTable hash table to add the entry to
- * @param entry entry to add
- *
- * The entry will be hashed using the entry hashing function and added to the
- * hash table, unless a locking blockage occurs, in which case the caller
- * should retry.
- *
- * @retval IX_ETH_DB_SUCCESS if adding <i>entry</i> has succeeded
- * @retval IX_ETH_DB_NOMEM if there's no memory left in the hash node pool
- * @retval IX_ETH_DB_BUSY if there's a locking failure on the insertion path
- *
- * @internal
- */
-IX_ETH_DB_PUBLIC IxEthDBStatus ixEthDBAddHashEntry(HashTable *hashTable, void *entry)
-{
-    UINT32 hashValue   = hashTable->entryHashFunction(entry);
-    UINT32 bucketIndex = hashValue % hashTable->numBuckets;
-    HashNode *bucket   = hashTable->hashBuckets[bucketIndex];
-    HashNode *newNode;
-
-    LockStack locks;
-
-    INIT_STACK(&locks);
-
-    /* lock bucket */
-    PUSH_LOCK(&locks, &hashTable->bucketLocks[bucketIndex]);
-
-    /* lock insertion element (first in chain), if any */
-    if (bucket != NULL)
-    {
-        PUSH_LOCK(&locks, &bucket->lock);
-    }
-
-    /* get new node */
-    newNode = ixEthDBAllocHashNode();
-
-    if (newNode == NULL)
-    {
-        /* unlock everything */
-        UNROLL_STACK(&locks);
-
-        return IX_ETH_DB_NOMEM;
-    }
-
-    /* init lock - note that mutexes are unlocked after MutexInit */
-    ixOsalFastMutexInit(&newNode->lock);
-
-    /* populate new link */
-    newNode->data = entry;
-
-    /* add to bucket */
-    newNode->next                       = bucket;
-    hashTable->hashBuckets[bucketIndex] = newNode;
-
-    /* unlock bucket and insertion point */
-    UNROLL_STACK(&locks);
-
-    return IX_ETH_DB_SUCCESS;
-}
-
-/**
- * @brief removes an entry from the hashtable
- *
- * @param hashTable hash table to remove entry from
- * @param keyType type of record key used for matching
- * @param reference reference key used to identify the entry
- *
- * The reference key will be hashed using the key hashing function,
- * the entry is searched using the hashed value and then examined
- * against the reference entry using the match function. A positive
- * match will trigger the deletion of the entry.
- * Locking failures are reported and the caller should retry.
- *
- * @retval IX_ETH_DB_SUCCESS if the removal was successful
- * @retval IX_ETH_DB_NO_SUCH_ADDR if the entry was not found
- * @retval IX_ETH_DB_BUSY if a locking failure occured during the process
- *
- * @internal
- */
-IxEthDBStatus ixEthDBRemoveHashEntry(HashTable *hashTable, int keyType, void *reference)
-{
-    UINT32 hashValue       = hashTable->entryHashFunction(reference);
-    UINT32 bucketIndex     = hashValue % hashTable->numBuckets;
-    HashNode *node         = hashTable->hashBuckets[bucketIndex];
-    HashNode *previousNode = NULL;
-    
-    LockStack locks;
-
-    INIT_STACK(&locks);
-
-    while (node != NULL)
-    {
-        /* try to lock node */
-        PUSH_LOCK(&locks, &node->lock);
-
-        if (hashTable->matchFunctions[keyType](reference, node->data))
-        {
-            /* found entry */
-            if (node->next != NULL)
-            {
-                PUSH_LOCK(&locks, &node->next->lock);
-            }
-
-            if (previousNode == NULL)
-            {
-                /* node is head of chain */
-                PUSH_LOCK(&locks, &hashTable->bucketLocks[bucketIndex]);
-
-                hashTable->hashBuckets[bucketIndex] = node->next;
-
-                POP_LOCK(&locks);
-            }
-            else
-            {
-                /* relink */
-                previousNode->next = node->next;
-            }
-
-            UNROLL_STACK(&locks);
-
-            /* free node */
-            hashTable->freeFunction(node->data);
-            ixEthDBFreeHashNode(node);
-
-            return IX_ETH_DB_SUCCESS;
-        }
-        else
-        {
-            if (previousNode != NULL)
-            {
-                /* unlock previous node */
-                SHIFT_STACK(&locks);
-            }
-
-            /* advance to next element in chain */
-            previousNode = node;
-            node         = node->next;
-        }
-    }
-
-    UNROLL_STACK(&locks);
-
-    /* not found */
-    return IX_ETH_DB_NO_SUCH_ADDR;
-}
-
-/**
- * @brief retrieves an entry from the hash table
- *
- * @param hashTable hash table to perform the search into
- * @param reference search key (a MAC address)
- * @param keyType type of record key used for matching
- * @param searchResult pointer where a reference to the located hash node 
- * is placed
- *
- * Searches the entry with the same key as <i>reference</i> and places the
- * pointer to the resulting node in <i>searchResult</i>.
- * An implicit write access lock is granted after a search, which gives the 
- * caller the opportunity to modify the entry.
- * Access should be released as soon as possible using @ref ixEthDBReleaseHashNode().
- *
- * @see ixEthDBReleaseHashNode()
- *
- * @retval IX_ETH_DB_SUCCESS if the search was completed successfully
- * @retval IX_ETH_DB_NO_SUCH_ADDRESS if no entry with the given key was found
- * @retval IX_ETH_DB_BUSY if a locking failure has occured, in which case
- * the caller should retry
- *
- * @warning unless the return value is <b>IX_ETH_DB_SUCCESS</b> the searchResult
- * location is NOT modified and therefore using a NULL comparison test when the
- * value was not properly initialized would be an error
- *
- * @internal
- */
-IxEthDBStatus ixEthDBSearchHashEntry(HashTable *hashTable, int keyType, void *reference, HashNode **searchResult)
-{
-    UINT32 hashValue;
-    HashNode *node;
-
-    hashValue = hashTable->entryHashFunction(reference);
-    node      = hashTable->hashBuckets[hashValue % hashTable->numBuckets];
-
-    while (node != NULL)
-    {
-        TRY_LOCK(&node->lock);
-
-        if (hashTable->matchFunctions[keyType](reference, node->data))
-        {
-            *searchResult = node;
-
-            return IX_ETH_DB_SUCCESS;
-        }
-        else
-        {
-            UNLOCK(&node->lock);
-
-            node = node->next;
-        }
-    }
-
-    /* not found */
-    return IX_ETH_DB_NO_SUCH_ADDR;
-}
-
-/**
- * @brief reports the existence of an entry in the hash table
- *
- * @param hashTable hash table to perform the search into
- * @param reference search key (a MAC address)
- * @param keyType type of record key used for matching
- *
- * Searches the entry with the same key as <i>reference</i>.
- * No implicit write access lock is granted after a search, hence the 
- * caller cannot access or modify the entry. The result is only temporary.
- *
- * @see ixEthDBReleaseHashNode()
- *
- * @retval IX_ETH_DB_SUCCESS if the search was completed successfully
- * @retval IX_ETH_DB_NO_SUCH_ADDRESS if no entry with the given key was found
- * @retval IX_ETH_DB_BUSY if a locking failure has occured, in which case
- * the caller should retry
- *
- * @internal
- */
-IxEthDBStatus ixEthDBPeekHashEntry(HashTable *hashTable, int keyType, void *reference)
-{
-    UINT32 hashValue;
-    HashNode *node;
-
-    hashValue = hashTable->entryHashFunction(reference);
-    node      = hashTable->hashBuckets[hashValue % hashTable->numBuckets];
-
-    while (node != NULL)
-    {
-        TRY_LOCK(&node->lock);
-
-        if (hashTable->matchFunctions[keyType](reference, node->data))
-        {
-            UNLOCK(&node->lock);
-
-            return IX_ETH_DB_SUCCESS;
-        }
-        else
-        {
-            UNLOCK(&node->lock);
-
-            node = node->next;
-        }
-    }
-
-    /* not found */
-    return IX_ETH_DB_NO_SUCH_ADDR;
-}
-
-/**
- * @brief releases the write access lock
- *
- * @pre the node should have been obtained via @ref ixEthDBSearchHashEntry()
- *
- * @see ixEthDBSearchHashEntry()
- *
- * @internal
- */
-void ixEthDBReleaseHashNode(HashNode *node)
-{
-    UNLOCK(&node->lock);
-}
-
-/**
- * @brief initializes a hash iterator
- *
- * @param hashTable hash table to be iterated
- * @param iterator iterator object
- *
- * If the initialization is successful the iterator will point to the
- * first hash table record (if any).
- * Testing if the iterator has not passed the end of the table should be
- * done using the IS_ITERATOR_VALID(iteratorPtr) macro.
- * An implicit write access lock is granted on the entry pointed by the iterator.
- * The access is automatically revoked when the iterator is incremented.
- * If the caller decides to terminate the iteration before the end of the table is
- * passed then the manual access release method, @ref ixEthDBReleaseHashIterator,
- * must be called.
- *
- * @see ixEthDBReleaseHashIterator()
- *
- * @retval IX_ETH_DB_SUCCESS if initialization was successful and the iterator points
- * to the first valid table node
- * @retval IX_ETH_DB_FAIL if the table is empty
- * @retval IX_ETH_DB_BUSY if a locking failure has occured, in which case the caller
- * should retry
- *
- * @warning do not use ixEthDBReleaseHashNode() on entries pointed by the iterator, as this
- * might place the database in a permanent invalid lock state
- *
- * @internal
- */
-IxEthDBStatus ixEthDBInitHashIterator(HashTable *hashTable, HashIterator *iterator)
-{
-    iterator->bucketIndex  = 0;
-    iterator->node         = NULL;
-    iterator->previousNode = NULL;
-
-    return ixEthDBIncrementHashIterator(hashTable, iterator);
-}
-
-/**
- * @brief releases the write access locks of the iterator nodes
- *
- * @warning use of this function is required only when the caller terminates an iteration
- * before reaching the end of the table
- *
- * @see ixEthDBInitHashIterator()
- * @see ixEthDBIncrementHashIterator()
- *
- * @param iterator iterator whose node(s) should be unlocked
- *
- * @internal
- */
-void ixEthDBReleaseHashIterator(HashIterator *iterator)
-{
-    if (iterator->previousNode != NULL)
-    {
-        UNLOCK(&iterator->previousNode->lock);
-    }
-
-    if (iterator->node != NULL)
-    {
-        UNLOCK(&iterator->node->lock);
-    }
-}
-
-/**
- * @brief incremenents an iterator so that it points to the next valid entry of the table
- * (if any)
- *
- * @param hashTable hash table to iterate
- * @param iterator iterator object
- *
- * @pre the iterator object must be initialized using @ref ixEthDBInitHashIterator()
- *
- * If the increment operation is successful the iterator will point to the
- * next hash table record (if any).
- * Testing if the iterator has not passed the end of the table should be
- * done using the IS_ITERATOR_VALID(iteratorPtr) macro.
- * An implicit write access lock is granted on the entry pointed by the iterator.
- * The access is automatically revoked when the iterator is re-incremented.
- * If the caller decides to terminate the iteration before the end of the table is
- * passed then the manual access release method, @ref ixEthDBReleaseHashIterator,
- * must be called.
- * Is is guaranteed that no other thread can remove or change the iterated entry until
- * the iterator is incremented successfully.
- *
- * @see ixEthDBReleaseHashIterator()
- *
- * @retval IX_ETH_DB_SUCCESS if the operation was successful and the iterator points
- * to the next valid table node
- * @retval IX_ETH_DB_FAIL if the iterator has passed the end of the table
- * @retval IX_ETH_DB_BUSY if a locking failure has occured, in which case the caller
- * should retry
- *
- * @warning do not use ixEthDBReleaseHashNode() on entries pointed by the iterator, as this
- * might place the database in a permanent invalid lock state
- *
- * @internal
- */
-IxEthDBStatus ixEthDBIncrementHashIterator(HashTable *hashTable, HashIterator *iterator)
-{
-    /* unless iterator is just initialized... */
-    if (iterator->node != NULL)
-    {
-        /* try next in chain */
-        if (iterator->node->next != NULL)
-        {
-            TRY_LOCK(&iterator->node->next->lock);
-
-            if (iterator->previousNode != NULL)
-            {
-                UNLOCK(&iterator->previousNode->lock);
-            }
-
-            iterator->previousNode = iterator->node;
-            iterator->node         = iterator->node->next;
-
-            return IX_ETH_DB_SUCCESS;
-        }
-        else
-        {
-            /* last in chain, prepare for next bucket */
-            iterator->bucketIndex++;
-        }
-    }
-
-   /* try next used bucket */
-    for (; iterator->bucketIndex < hashTable->numBuckets ; iterator->bucketIndex++)
-    {
-        HashNode **nodePtr = &(hashTable->hashBuckets[iterator->bucketIndex]);
-        HashNode *node = *nodePtr;
-#if (CPU!=SIMSPARCSOLARIS) && !defined (__wince)
-        if (((iterator->bucketIndex & IX_ETHDB_BUCKET_INDEX_MASK) == 0) &&
-            (iterator->bucketIndex < (hashTable->numBuckets - IX_ETHDB_BUCKETPTR_AHEAD)))
-        {
-            /* preload next cache line (2 cache line ahead) */
-            nodePtr += IX_ETHDB_BUCKETPTR_AHEAD;
-            __asm__ ("pld [%0];\n": : "r" (nodePtr));
-        }
-#endif
-        if (node != NULL)
-        {
-            TRY_LOCK(&node->lock);
-
-            /* unlock last one or two nodes in the previous chain */
-            if (iterator->node != NULL)
-            {
-                UNLOCK(&iterator->node->lock);
-
-                if (iterator->previousNode != NULL)
-                {
-                    UNLOCK(&iterator->previousNode->lock);
-                }
-            }
-            
-            /* redirect iterator */
-            iterator->previousNode = NULL;
-            iterator->node         = node;
-
-            return IX_ETH_DB_SUCCESS;
-        }
-    }
-
-    /* could not advance iterator */
-    if (iterator->node != NULL)
-    {
-        UNLOCK(&iterator->node->lock);
-
-        if (iterator->previousNode != NULL)
-        {
-            UNLOCK(&iterator->previousNode->lock);
-        }
-
-        iterator->node = NULL;
-    }
-
-    return IX_ETH_DB_END;
-}
-
-/**
- * @brief removes an entry pointed by an iterator
- *
- * @param hashTable iterated hash table
- * @param iterator iterator object
- *
- * Removes the entry currently pointed by the iterator and repositions the iterator
- * on the next valid entry (if any). Handles locking issues automatically and
- * implicitely grants write access lock to the new pointed entry.
- * Failures due to concurrent threads having write access locks in the same region
- * preserve the state of the database and the iterator object, leaving the caller
- * free to retry without loss of access. It is guaranteed that only the thread owning
- * the iterator can remove the object pointed by the iterator.
- *
- * @retval IX_ETH_DB_SUCCESS if removal has succeeded
- * @retval IX_ETH_DB_BUSY if a locking failure has occured, in which case the caller
- * should retry
- *
- * @internal
- */
-IxEthDBStatus ixEthDBRemoveEntryAtHashIterator(HashTable *hashTable, HashIterator *iterator)
-{
-    HashIterator nextIteratorPos;
-    LockStack locks;
-
-    INIT_STACK(&locks);
-
-    /* set initial bucket index for next position */
-    nextIteratorPos.bucketIndex = iterator->bucketIndex;
-
-    /* compute iterator position before removing anything and lock ahead */
-    if (iterator->node->next != NULL)
-    {
-        PUSH_LOCK(&locks, &iterator->node->next->lock);
-
-        /* reposition on the next node in the chain */
-        nextIteratorPos.node         = iterator->node->next;
-        nextIteratorPos.previousNode = iterator->previousNode;
-    }
-    else
-    {
-        /* try next chain - don't know yet if we'll find anything */
-        nextIteratorPos.node = NULL;
-
-        /* if we find something it's a chain head */
-        nextIteratorPos.previousNode = NULL;
-
-        /* browse up in the buckets to find a non-null chain */
-        while (++nextIteratorPos.bucketIndex < hashTable->numBuckets)
-        {
-            nextIteratorPos.node = hashTable->hashBuckets[nextIteratorPos.bucketIndex];
-
-            if (nextIteratorPos.node != NULL)
-            {
-                /* found a non-empty chain, try to lock head */
-                PUSH_LOCK(&locks, &nextIteratorPos.node->lock);
-
-                break;
-            }
-        }
-    }
-
-    /* restore links over the to-be-deleted item */
-    if (iterator->previousNode == NULL)
-    {
-        /* first in chain, lock bucket */
-        PUSH_LOCK(&locks, &hashTable->bucketLocks[iterator->bucketIndex]);
-
-        hashTable->hashBuckets[iterator->bucketIndex] = iterator->node->next;
-
-        POP_LOCK(&locks);
-    }
-    else
-    {
-        /* relink */
-        iterator->previousNode->next = iterator->node->next;
-
-        /* unlock last remaining node in current chain when moving between chains */
-        if (iterator->node->next == NULL)
-        {
-            UNLOCK(&iterator->previousNode->lock);
-        }
-    }
-
-    /* delete entry */
-    hashTable->freeFunction(iterator->node->data);
-    ixEthDBFreeHashNode(iterator->node);
-
-    /* reposition iterator */
-    *iterator = nextIteratorPos;
-
-    return IX_ETH_DB_SUCCESS;
-}
-
-/**
- * @}
- */