u-boot/arch/arm/cpu/ixp/npe/IxEthDBWiFi.c
Peter Tyser 84ad688473 arm: Move cpu/$CPU to arch/arm/cpu/$CPU
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-04-13 09:13:24 +02:00

480 lines
14 KiB
C

/**
* @file IxEthDBAPI.c
*
* @brief Implementation of the public API
*
* @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"
/* forward prototypes */
IX_ETH_DB_PUBLIC
MacTreeNode *ixEthDBGatewaySelect(MacTreeNode *stations);
/**
* @brief sets the BBSID value for the WiFi header conversion feature
*
* @param portID ID of the port
* @param bbsid pointer to the 6-byte BBSID value
*
* Note that this function is documented in the main component
* header file, IxEthDB.h.
*
* @return IX_ETH_DB_SUCCESS if the operation completed successfully
* or an appropriate error message otherwise
*/
IX_ETH_DB_PUBLIC
IxEthDBStatus ixEthDBWiFiBBSIDSet(IxEthDBPortId portID, IxEthDBMacAddr *bbsid)
{
IxNpeMhMessage message;
IX_STATUS result;
IX_ETH_DB_CHECK_PORT(portID);
IX_ETH_DB_CHECK_SINGLE_NPE(portID);
IX_ETH_DB_CHECK_FEATURE(portID, IX_ETH_DB_WIFI_HEADER_CONVERSION);
IX_ETH_DB_CHECK_REFERENCE(bbsid);
memcpy(ixEthDBPortInfo[portID].bbsid, bbsid, sizeof (IxEthDBMacAddr));
FILL_SETBBSID_MSG(message, portID, bbsid);
IX_ETHDB_SEND_NPE_MSG(IX_ETH_DB_PORT_ID_TO_NPE(portID), message, result);
return result;
}
/**
* @brief updates the Frame Control and Duration/ID WiFi header
* conversion parameters in an NPE
*
* @param portID ID of the port
*
* This function will send a message to the NPE updating the
* frame conversion parameters for 802.3 => 802.11 header conversion.
*
* @return IX_ETH_DB_SUCCESS if the operation completed successfully
* or IX_ETH_DB_FAIL otherwise
*
* @internal
*/
IX_ETH_DB_PRIVATE
IxEthDBStatus ixEthDBWiFiFrameControlDurationIDUpdate(IxEthDBPortId portID)
{
IxNpeMhMessage message;
IX_STATUS result;
FILL_SETFRAMECONTROLDURATIONID(message, portID, ixEthDBPortInfo[portID].frameControlDurationID);
IX_ETHDB_SEND_NPE_MSG(IX_ETH_DB_PORT_ID_TO_NPE(portID), message, result);
return result;
}
/**
* @brief sets the Duration/ID WiFi frame header conversion parameter
*
* @param portID ID of the port
* @param durationID 16-bit value containing the new Duration/ID parameter
*
* Note that this function is documented in the main component
* header file, IxEthDB.h.
*
* @return IX_ETH_DB_SUCCESS if the operation completed successfully
* or an appropriate error message otherwise
*/
IX_ETH_DB_PUBLIC
IxEthDBStatus ixEthDBWiFiDurationIDSet(IxEthDBPortId portID, UINT16 durationID)
{
IX_ETH_DB_CHECK_PORT(portID);
IX_ETH_DB_CHECK_SINGLE_NPE(portID);
IX_ETH_DB_CHECK_FEATURE(portID, IX_ETH_DB_WIFI_HEADER_CONVERSION);
ixEthDBPortInfo[portID].frameControlDurationID = (ixEthDBPortInfo[portID].frameControlDurationID & 0xFFFF0000) | durationID;
return ixEthDBWiFiFrameControlDurationIDUpdate(portID);
}
/**
* @brief sets the Frame Control WiFi frame header conversion parameter
*
* @param portID ID of the port
* @param durationID 16-bit value containing the new Frame Control parameter
*
* Note that this function is documented in the main component
* header file, IxEthDB.h.
*
* @return IX_ETH_DB_SUCCESS if the operation completed successfully
* or an appropriate error message otherwise
*/
IX_ETH_DB_PUBLIC
IxEthDBStatus ixEthDBWiFiFrameControlSet(IxEthDBPortId portID, UINT16 frameControl)
{
IX_ETH_DB_CHECK_PORT(portID);
IX_ETH_DB_CHECK_SINGLE_NPE(portID);
IX_ETH_DB_CHECK_FEATURE(portID, IX_ETH_DB_WIFI_HEADER_CONVERSION);
ixEthDBPortInfo[portID].frameControlDurationID = (ixEthDBPortInfo[portID].frameControlDurationID & 0xFFFF) | (frameControl << 16);
return ixEthDBWiFiFrameControlDurationIDUpdate(portID);
}
/**
* @brief removes a WiFi header conversion record
*
* @param portID ID of the port
* @param macAddr MAC address of the record to remove
*
* Note that this function is documented in the main
* component header file, IxEthDB.h.
*
* @return IX_ETH_DB_SUCCESS if the operation completed
* successfully or an appropriate error message otherwise
*/
IX_ETH_DB_PUBLIC
IxEthDBStatus ixEthDBWiFiEntryRemove(IxEthDBPortId portID, IxEthDBMacAddr *macAddr)
{
MacDescriptor recordTemplate;
IX_ETH_DB_CHECK_PORT(portID);
IX_ETH_DB_CHECK_SINGLE_NPE(portID);
IX_ETH_DB_CHECK_REFERENCE(macAddr);
IX_ETH_DB_CHECK_FEATURE(portID, IX_ETH_DB_WIFI_HEADER_CONVERSION);
memcpy(recordTemplate.macAddress, macAddr, sizeof (IxEthDBMacAddr));
recordTemplate.type = IX_ETH_DB_WIFI_RECORD;
recordTemplate.portID = portID;
return ixEthDBRemove(&recordTemplate, NULL);
}
/**
* @brief adds a WiFi header conversion record
*
* @param portID ID of the port
* @param macAddr MAC address of the record to add
* @param gatewayMacAddr address of the gateway (or
* NULL if this is a station record)
*
* This function adds a record of type AP_TO_AP (gateway is not NULL)
* or AP_TO_STA (gateway is NULL) in the main database as a
* WiFi header conversion record.
*
* @return IX_ETH_DB_SUCCESS if the operation completed
* successfully or an appropriate error message otherwise
*
* @internal
*/
IX_ETH_DB_PRIVATE
IxEthDBStatus ixEthDBWiFiEntryAdd(IxEthDBPortId portID, IxEthDBMacAddr *macAddr, IxEthDBMacAddr *gatewayMacAddr)
{
MacDescriptor recordTemplate;
IX_ETH_DB_CHECK_PORT(portID);
IX_ETH_DB_CHECK_SINGLE_NPE(portID);
IX_ETH_DB_CHECK_REFERENCE(macAddr);
IX_ETH_DB_CHECK_FEATURE(portID, IX_ETH_DB_WIFI_HEADER_CONVERSION);
memcpy(recordTemplate.macAddress, macAddr, sizeof (IxEthDBMacAddr));
recordTemplate.type = IX_ETH_DB_WIFI_RECORD;
recordTemplate.portID = portID;
if (gatewayMacAddr != NULL)
{
memcpy(recordTemplate.recordData.wifiData.gwMacAddress, gatewayMacAddr, sizeof (IxEthDBMacAddr));
recordTemplate.recordData.wifiData.type = IX_ETH_DB_WIFI_AP_TO_AP;
}
else
{
memset(recordTemplate.recordData.wifiData.gwMacAddress, 0, sizeof (IxEthDBMacAddr));
recordTemplate.recordData.wifiData.type = IX_ETH_DB_WIFI_AP_TO_STA;
}
return ixEthDBAdd(&recordTemplate, NULL);
}
/**
* @brief adds a WiFi header conversion record
*
* @param portID ID of the port
* @param macAddr MAC address of the record to add
* @param gatewayMacAddr address of the gateway
*
* This function adds a record of type AP_TO_AP
* in the main database as a WiFi header conversion record.
*
* This is simply a wrapper over @ref ixEthDBWiFiEntryAdd().
*
* Note that this function is documented in the main
* component header file, IxEthDB.h.
*
* @return IX_ETH_DB_SUCCESS if the operation completed
* successfully or an appropriate error message otherwise
*/
IX_ETH_DB_PUBLIC
IxEthDBStatus ixEthDBWiFiAccessPointEntryAdd(IxEthDBPortId portID, IxEthDBMacAddr *macAddr, IxEthDBMacAddr *gatewayMacAddr)
{
IX_ETH_DB_CHECK_REFERENCE(gatewayMacAddr);
return ixEthDBWiFiEntryAdd(portID, macAddr, gatewayMacAddr);
}
/**
* @brief adds a WiFi header conversion record
*
* @param portID ID of the port
* @param macAddr MAC address of the record to add
*
* This function adds a record of type AP_TO_STA
* in the main database as a WiFi header conversion record.
*
* This is simply a wrapper over @ref ixEthDBWiFiEntryAdd().
*
* Note that this function is documented in the main
* component header file, IxEthDB.h.
*
* @return IX_ETH_DB_SUCCESS if the operation completed
* successfully or an appropriate error message otherwise
*/
IX_ETH_DB_PUBLIC
IxEthDBStatus ixEthDBWiFiStationEntryAdd(IxEthDBPortId portID, IxEthDBMacAddr *macAddr)
{
return ixEthDBWiFiEntryAdd(portID, macAddr, NULL);
}
/**
* @brief selects a set of gateways from a tree of
* WiFi header conversion records
*
* @param stations binary tree containing pointers to WiFi header
* conversion records
*
* This function browses through the input binary tree, identifies
* records of type AP_TO_AP, clones these records and appends them
* to a vine (a single right-branch binary tree) which is returned
* as result. A maximum of MAX_GW_SIZE entries containing gateways
* will be cloned from the original tree.
*
* @return vine (linear binary tree) containing record
* clones of AP_TO_AP type, which have a gateway field
*
* @internal
*/
IX_ETH_DB_PUBLIC
MacTreeNode *ixEthDBGatewaySelect(MacTreeNode *stations)
{
MacTreeNodeStack *stack;
MacTreeNode *gateways, *insertionPlace;
UINT32 gwIndex = 1; /* skip the empty root */
if (stations == NULL)
{
return NULL;
}
stack = ixOsalCacheDmaMalloc(sizeof (MacTreeNodeStack));
if (stack == NULL)
{
ERROR_LOG("DB: (WiFi) failed to allocate the node stack for gateway tree linearization, out of memory?\n");
return NULL;
}
/* initialize root node */
gateways = insertionPlace = NULL;
/* start browsing the station tree */
NODE_STACK_INIT(stack);
/* initialize stack by pushing the tree root at offset 0 */
NODE_STACK_PUSH(stack, stations, 0);
while (NODE_STACK_NONEMPTY(stack))
{
MacTreeNode *node;
UINT32 offset;
NODE_STACK_POP(stack, node, offset);
/* we can store maximum 31 (32 total, 1 empty root) entries in the gateway tree */
if (offset > (MAX_GW_SIZE - 1)) break;
/* check if this record has a gateway address */
if (node->descriptor != NULL && node->descriptor->recordData.wifiData.type == IX_ETH_DB_WIFI_AP_TO_AP)
{
/* found a record, create an insertion place */
if (insertionPlace != NULL)
{
insertionPlace->right = ixEthDBAllocMacTreeNode();
insertionPlace = insertionPlace->right;
}
else
{
gateways = ixEthDBAllocMacTreeNode();
insertionPlace = gateways;
}
if (insertionPlace == NULL)
{
/* no nodes left, bail out with what we have */
ixOsalCacheDmaFree(stack);
return gateways;
}
/* clone the original record for the gateway tree */
insertionPlace->descriptor = ixEthDBCloneMacDescriptor(node->descriptor);
/* insert and update the offset in the original record */
node->descriptor->recordData.wifiData.gwAddressIndex = gwIndex++;
}
/* browse the tree */
if (node->left != NULL)
{
NODE_STACK_PUSH(stack, node->left, LEFT_CHILD_OFFSET(offset));
}
if (node->right != NULL)
{
NODE_STACK_PUSH(stack, node->right, RIGHT_CHILD_OFFSET(offset));
}
}
ixOsalCacheDmaFree(stack);
return gateways;
}
/**
* @brief downloads the WiFi header conversion table to an NPE
*
* @param portID ID of the port
*
* This function prepares the WiFi header conversion tables and
* downloads them to the specified NPE port.
*
* The header conversion tables consist in the main table of
* addresses and the secondary table of gateways. AP_TO_AP records
* from the first table contain index fields into the second table
* for gateway selection.
*
* Note that this function is documented in the main component
* header file, IxEthDB.h.
*
* @return IX_ETH_DB_SUCCESS if the operation completed successfully
* or an appropriate error message otherwise
*/
IX_ETH_DB_PUBLIC
IxEthDBStatus ixEthDBWiFiConversionTableDownload(IxEthDBPortId portID)
{
IxEthDBPortMap query;
MacTreeNode *stations = NULL, *gateways = NULL, *gateway = NULL;
IxNpeMhMessage message;
PortInfo *portInfo;
IX_STATUS result;
IX_ETH_DB_CHECK_PORT(portID);
IX_ETH_DB_CHECK_SINGLE_NPE(portID);
IX_ETH_DB_CHECK_FEATURE(portID, IX_ETH_DB_WIFI_HEADER_CONVERSION);
portInfo = &ixEthDBPortInfo[portID];
SET_DEPENDENCY_MAP(query, portID);
ixEthDBUpdateLock();
stations = ixEthDBQuery(NULL, query, IX_ETH_DB_WIFI_RECORD, MAX_ELT_SIZE);
gateways = ixEthDBGatewaySelect(stations);
/* clean up gw area */
memset((void *) portInfo->updateMethod.npeGwUpdateZone, FULL_GW_BYTE_SIZE, 0);
/* write all gateways */
gateway = gateways;
while (gateway != NULL)
{
ixEthDBNPEGatewayNodeWrite((void *) (((UINT32) portInfo->updateMethod.npeGwUpdateZone)
+ gateway->descriptor->recordData.wifiData.gwAddressIndex * ELT_ENTRY_SIZE),
gateway);
gateway = gateway->right;
}
/* free the gateway tree */
if (gateways != NULL)
{
ixEthDBFreeMacTreeNode(gateways);
}
FILL_SETAPMACTABLE_MSG(message,
IX_OSAL_MMU_VIRT_TO_PHYS(portInfo->updateMethod.npeGwUpdateZone));
IX_ETHDB_SEND_NPE_MSG(IX_ETH_DB_PORT_ID_TO_NPE(portID), message, result);
if (result == IX_SUCCESS)
{
/* update the main tree (the stations tree) */
portInfo->updateMethod.searchTree = stations;
result = ixEthDBNPEUpdateHandler(portID, IX_ETH_DB_WIFI_RECORD);
}
ixEthDBUpdateUnlock();
return result;
}