573 lines
19 KiB
C
573 lines
19 KiB
C
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/*******************************************************************************
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Copyright (C) Marvell International Ltd. and its affiliates
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This software file (the "File") is owned and distributed by Marvell
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International Ltd. and/or its affiliates ("Marvell") under the following
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alternative licensing terms. Once you have made an election to distribute the
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File under one of the following license alternatives, please (i) delete this
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introductory statement regarding license alternatives, (ii) delete the two
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license alternatives that you have not elected to use and (iii) preserve the
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Marvell copyright notice above.
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********************************************************************************
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Marvell Commercial License Option
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If you received this File from Marvell and you have entered into a commercial
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license agreement (a "Commercial License") with Marvell, the File is licensed
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to you under the terms of the applicable Commercial License.
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********************************************************************************
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Marvell GPL License Option
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If you received this File from Marvell, you may opt to use, redistribute and/or
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modify this File in accordance with the terms and conditions of the General
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Public License Version 2, June 1991 (the "GPL License"), a copy of which is
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available along with the File in the license.txt file or by writing to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or
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on the worldwide web at http://www.gnu.org/licenses/gpl.txt.
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THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED
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WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY
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DISCLAIMED. The GPL License provides additional details about this warranty
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disclaimer.
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********************************************************************************
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Marvell BSD License Option
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If you received this File from Marvell, you may opt to use, redistribute and/or
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modify this File under the following licensing terms.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of Marvell nor the names of its contributors may be
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used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*******************************************************************************/
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/*******************************************************************************
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* mvEthPolicy.c - Source file for RX and TX policy of Giga Ethernet driver
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*
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* DESCRIPTION:
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*
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* DEPENDENCIES:
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* None.
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*
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*******************************************************************************/
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#include "mvEthPolicy.h"
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/*****************************************************************************/
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/**************************** RX Policy **************************************/
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/*****************************************************************************/
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ETH_RX_POLICY* rxPolicy[MV_ETH_MAX_PORTS];
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/*******************************************************************************
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* mvEthRxPolicyInit - Initialize RX policy component.
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*
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* DESCRIPTION:
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* Create RX policy database for ethernet port, set to it to default
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* (FIXED mode) and return port handle.
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*
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* INPUT:
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* int port - Ethernet port number
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*
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*
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* RETURN:
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* void* pRxPolicyHndl - RX Policy component handler;
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*
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*******************************************************************************/
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void* mvEthRxPolicyInit(int port, int defQuota, MV_ETH_PRIO_MODE defMode)
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{
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int queue;
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if( (port < 0) || (port >= mvCtrlEthMaxPortGet()) )
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{
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mvOsPrintf("ethRxPolicy: port #%d is not exist\n", port);
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return NULL;
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}
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rxPolicy[port] = mvOsMalloc(sizeof(ETH_RX_POLICY));
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if(rxPolicy[port] == NULL)
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{
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mvOsPrintf("ethRxPolicy: Port #%d, Can't allocate %lu bytes\n",
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port, sizeof(ETH_RX_POLICY));
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return NULL;
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}
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/* Set defaults */
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memset(rxPolicy[port], 0, sizeof(ETH_RX_POLICY));
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for(queue=0; queue<MV_ETH_RX_Q_NUM; queue++)
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{
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rxPolicy[port]->rxQuota[queue] = defQuota;
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}
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rxPolicy[port]->port = port;
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rxPolicy[port]->rxPrioMode = defMode;
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rxPolicy[port]->rxCurQ = MV_ETH_RX_Q_NUM-1;
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rxPolicy[port]->rxCurQuota = rxPolicy[port]->rxQuota[rxPolicy[port]->rxCurQ];
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return rxPolicy[port];
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}
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/* Get RX policy handler for specific port */
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void* mvEthRxPolicyHndlGet(int port)
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{
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return rxPolicy[port];
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}
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/*******************************************************************************
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* mvEthRxPolicyModeSet - Set receive priority policy.
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*
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* DESCRIPTION:
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* This function configures priority mode for processing received packets.
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*
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* INPUT:
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* void* pRxPolHndl - RX Policy component handler
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* MV_ETH_PRIO_MODE prioMode - RX priority mode (FIXED or WRR)
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*
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*
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* RETURN: MV_STATUS
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* MV_OK - Success
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* MV_FAIL - Failed.
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*
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*******************************************************************************/
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MV_STATUS mvEthRxPolicyModeSet(void* pRxPolHndl, MV_ETH_PRIO_MODE prioMode)
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{
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ETH_RX_POLICY* pRxPolicy = (ETH_RX_POLICY*)pRxPolHndl;
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pRxPolicy->rxPrioMode = prioMode;
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return MV_OK;
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}
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/*******************************************************************************
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* mvEthRxPolicyQueueCfg - Set quota for RX queue in WRR receive priority mode.
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*
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* DESCRIPTION:
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* This function configures packet based quota for each RX queue,
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* when WRR priority mode is chosen for processing received packets.
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*
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* INPUT:
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* void* pRxPolHndl - RX Policy component handler
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* int rxQueue - RX priority mode (FIXED or WRR)
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* int rxQuota - packet based quota for RX queue (only in WRR mode)
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*
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* RETURN: MV_STATUS
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* MV_OK - Success
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* MV_FAIL - Failed.
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*
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*******************************************************************************/
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MV_STATUS mvEthRxPolicyQueueCfg(void* pRxPolHndl, int rxQueue, int rxQuota)
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{
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ETH_RX_POLICY* pRxPolicy = (ETH_RX_POLICY*)pRxPolHndl;
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pRxPolicy->rxQuota[rxQueue] = rxQuota;
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return MV_OK;
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}
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/*******************************************************************************
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* mvEthRxPolicyGet - Get RX policy of ethernet port.
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*
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* DESCRIPTION:
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* This function choose which RX queue will be processed next
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*
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* INPUT:
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* void* pRxPolHndl - RX Policy component handler
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* MV_U32 cause - value of cause register, indicating
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* which RX queues received packets.
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*
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* RETURN:
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* int rxQueue - The RX queue number that will be processed next.
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* -1 means error
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*
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*******************************************************************************/
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int mvEthRxPolicyGet(void* pRxPolHndl, MV_U32 cause)
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{
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int queue;
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ETH_RX_POLICY* pRxPolicy = (ETH_RX_POLICY*)pRxPolHndl;
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#ifdef MV_RT_DEBUG
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if(cause == 0)
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{
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mvOsPrintf("EthRxPolicy: port #%d, unexpected cause=0x%x\n", pRxPolicy->port, cause);
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return MV_INVALID;
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}
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#endif /* MV_RT_DEBUG */
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if(pRxPolicy->rxPrioMode == MV_ETH_PRIO_FIXED)
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{
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for(queue=(MV_ETH_RX_Q_NUM-1); queue>=0; queue--)
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{
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if(cause & (ETH_CAUSE_RX_READY_MASK(queue)))
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return queue;
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}
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}
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else
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{
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/* Check Current RX queue */
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if(cause & ETH_CAUSE_RX_READY_MASK(pRxPolicy->rxCurQ))
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{
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if(pRxPolicy->rxCurQuota > 0)
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{
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pRxPolicy->rxCurQuota -= 1;
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return pRxPolicy->rxCurQ;
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}
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}
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/* Look for next RX Queue */
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while(MV_TRUE)
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{
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if(pRxPolicy->rxCurQ == 0)
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pRxPolicy->rxCurQ = MV_ETH_RX_Q_NUM-1;
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else
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pRxPolicy->rxCurQ -= 1;
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if( ((cause & ETH_CAUSE_RX_READY_MASK(pRxPolicy->rxCurQ)) != 0) &&
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(pRxPolicy->rxQuota[pRxPolicy->rxCurQ] != 0) )
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{
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pRxPolicy->rxCurQuota = pRxPolicy->rxQuota[pRxPolicy->rxCurQ]-1;
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return pRxPolicy->rxCurQ;
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}
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}
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}
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return MV_INVALID;
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}
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/*****************************************************************************/
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/**************************** TX Policy **************************************/
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/*****************************************************************************/
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ETH_TX_POLICY* txPolicy[MV_ETH_MAX_PORTS];
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/*******************************************************************************
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* mvEthTxPolicyInit - Initialize TX policy component.
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*
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* DESCRIPTION:
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* Create TX policy database for ethernet port, set to it to default
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* values and return port handle.
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*
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* INPUT:
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* int port - Ethernet port number
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*
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*
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* RETURN:
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* void* pTxPolHndl - TX Policy component handler
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*
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*******************************************************************************/
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void* mvEthTxPolicyInit(int port, MV_ETH_TX_POLICY_ENTRY* pDefPolicy)
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{
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int daIdx;
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if( (port < 0) || (port >= mvCtrlEthMaxPortGet()) )
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{
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mvOsPrintf("ethTxPolicy: port #%d is not exist\n", port);
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return NULL;
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}
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txPolicy[port] = mvOsMalloc(sizeof(ETH_TX_POLICY));
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if(txPolicy[port] == NULL)
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{
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mvOsPrintf("ethTxPolicy: Port #%d, Can't allocate %lu bytes\n",
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port, sizeof(ETH_TX_POLICY));
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return NULL;
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}
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/* Set defaults */
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memset(txPolicy[port], 0, sizeof(ETH_TX_POLICY));
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txPolicy[port]->port = port;
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mvEthTxPolicyDef(txPolicy[port],pDefPolicy);
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/* Invalidate all entries */
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txPolicy[port]->txPolMaxDa = 0;
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for(daIdx=0; daIdx<MV_ETH_TX_POLICY_MAX_MACDA; daIdx++)
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txPolicy[port]->txPolDa[daIdx].policy.txQ = MV_INVALID;
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return txPolicy[port];
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}
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/* Get TX policy handler for specific port */
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void* mvEthTxPolicyHndlGet(int port)
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{
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return txPolicy[port];
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}
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/*******************************************************************************
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* mvEthTxPolicyDef - Set TX default policy.
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*
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* DESCRIPTION:
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* This function configures TX default policy for packets that
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* there is no information for them
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*
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* INPUT:
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* void* pTxPolHndl - TX Policy component handler
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* MV_ETH_TX_POLICY_ENTRY policy - Default TX policy
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*
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* RETURN: MV_STATUS
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* MV_OK - Success
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* MV_FAIL - Failed.
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*
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*******************************************************************************/
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MV_STATUS mvEthTxPolicyDef(void* pTxPolHndl, MV_ETH_TX_POLICY_ENTRY* pPolicy)
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{
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ETH_TX_POLICY* pTxPolicy = (ETH_TX_POLICY*)pTxPolHndl;
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/* if Tx header exist */
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if(pPolicy->pHeader != NULL)
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{
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/* allocate memory for header */
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pTxPolicy->txPolDef.pHeader = mvOsMalloc(pPolicy->headerSize );
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if(pTxPolicy->txPolDef.pHeader == NULL)
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{
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mvOsPrintf("mvEthTxPolicyDef: Alloc failed \n");
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return MV_FAIL;
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}
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/* copy header */
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memcpy(pTxPolicy->txPolDef.pHeader, pPolicy->pHeader , pPolicy->headerSize );
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pTxPolicy->txPolDef.headerSize = pPolicy->headerSize;
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}
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else
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{
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pTxPolicy->txPolDef.pHeader = NULL;
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pTxPolicy->txPolDef.headerSize = 0;
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}
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pTxPolicy->txPolDef.txQ = pPolicy->txQ;
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return MV_OK;
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}
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/*******************************************************************************
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* mvEthTxPolicyAdd - Add TX policy for packets with special MAC DA.
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*
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* DESCRIPTION:
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* This function adds TX policy for outgoing packets with special MAC DAs.
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* Support up to 16 entries.
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*
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* INPUT:
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* void* pTxPolHndl - TX Policy component handler
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* MV_ETH_TX_POLICY_MACDA daPolicy - TX policy for outgoing packets
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* with specific MACDA
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*
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* RETURN: MV_STATUS
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* MV_OK - Success
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* MV_FAIL - Failed.
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*
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*******************************************************************************/
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MV_STATUS mvEthTxPolicyAdd(void* pTxPolHndl, MV_ETH_TX_POLICY_MACDA* pDaPolicy)
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{
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int idx, firstEmptyIdx = MV_INVALID;
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ETH_TX_POLICY* pTxPolicy = (ETH_TX_POLICY*)pTxPolHndl;
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for(idx=0; idx<MV_ETH_TX_POLICY_MAX_MACDA; idx++)
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{
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if( (pTxPolicy->txPolDa[idx].policy.txQ != MV_INVALID) &&
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( memcmp(pTxPolicy->txPolDa[idx].macDa, pDaPolicy->macDa,
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MV_MAC_ADDR_SIZE) == 0) )
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{
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/* entry already exist - so replace */
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firstEmptyIdx = idx;
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break;
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}
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if( (firstEmptyIdx == MV_INVALID) &&
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(pTxPolicy->txPolDa[idx].policy.txQ == MV_INVALID) )
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{
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firstEmptyIdx = idx;
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}
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}
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if(firstEmptyIdx != MV_INVALID)
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{
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memcpy(pTxPolicy->txPolDa[firstEmptyIdx].macDa,
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pDaPolicy->macDa, MV_MAC_ADDR_SIZE);
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/* if Tx header exist */
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if(pDaPolicy->policy.pHeader != NULL)
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{
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/* allocate memory for header */
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pTxPolicy->txPolDa[firstEmptyIdx].policy.pHeader = mvOsMalloc(pDaPolicy->policy.headerSize );
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if(pTxPolicy->txPolDa[firstEmptyIdx].policy.pHeader == NULL)
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{
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mvOsPrintf("ethTxPolicy: Alloc failed \n");
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return MV_FAIL;
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}
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/* copy header */
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memcpy(pTxPolicy->txPolDa[firstEmptyIdx].policy.pHeader ,
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pDaPolicy->policy.pHeader , pDaPolicy->policy.headerSize );
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pTxPolicy->txPolDa[firstEmptyIdx].policy.headerSize = pDaPolicy->policy.headerSize;
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}
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else
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{
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pTxPolicy->txPolDa[firstEmptyIdx].policy.pHeader = NULL;
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pTxPolicy->txPolDa[firstEmptyIdx].policy.headerSize = 0;
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}
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pTxPolicy->txPolDa[firstEmptyIdx].policy.txQ = pDaPolicy->policy.txQ;
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if(firstEmptyIdx >= pTxPolicy->txPolMaxDa)
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pTxPolicy->txPolMaxDa = firstEmptyIdx + 1;
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return MV_OK;
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}
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mvOsPrintf("ethTxPolicy: Can't add more MACDA entries\n");
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return MV_FULL;
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}
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/*******************************************************************************
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* mvEthTxPolicyDel - Delete TX policy for packets with special MACDA.
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*
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* DESCRIPTION:
|
||
|
* This function deletes existing TX policy for outgoing packets with
|
||
|
* special MAC DAs..
|
||
|
*
|
||
|
* INPUT:
|
||
|
* void* pTxPolHndl - TX Policy component handler
|
||
|
* MV_U8* pMacAddr - Pointer to MACDA for the entry will be deleted.
|
||
|
*
|
||
|
* RETURN: MV_STATUS
|
||
|
* MV_OK - Success
|
||
|
* MV_FAIL - Failed.
|
||
|
*
|
||
|
*******************************************************************************/
|
||
|
MV_STATUS mvEthTxPolicyDel(void* pTxPolHndl, MV_U8* pMacAddr)
|
||
|
{
|
||
|
int idx;
|
||
|
ETH_TX_POLICY* pTxPolicy = (ETH_TX_POLICY*)pTxPolHndl;
|
||
|
|
||
|
for(idx=0; idx<pTxPolicy->txPolMaxDa; idx++)
|
||
|
{
|
||
|
if( (pTxPolicy->txPolDa[idx].policy.txQ != MV_INVALID) &&
|
||
|
(memcmp(pTxPolicy->txPolDa[idx].macDa, pMacAddr,
|
||
|
MV_MAC_ADDR_SIZE) == 0) )
|
||
|
{
|
||
|
/* Entry found */
|
||
|
pTxPolicy->txPolDa[idx].policy.txQ = MV_INVALID;
|
||
|
if(pTxPolicy->txPolDa[idx].policy.pHeader != NULL)
|
||
|
{
|
||
|
mvOsFree(pTxPolicy->txPolDa[idx].policy.pHeader);
|
||
|
pTxPolicy->txPolDa[idx].policy.pHeader = NULL;
|
||
|
pTxPolicy->txPolDa[idx].policy.headerSize = 0;
|
||
|
}
|
||
|
|
||
|
if(idx == (pTxPolicy->txPolMaxDa - 1))
|
||
|
pTxPolicy->txPolMaxDa--;
|
||
|
|
||
|
/* Decrease table */
|
||
|
while( (pTxPolicy->txPolMaxDa > 0) &&
|
||
|
(pTxPolicy->txPolDa[pTxPolicy->txPolMaxDa-1].policy.txQ == MV_INVALID) )
|
||
|
pTxPolicy->txPolMaxDa--;
|
||
|
|
||
|
return MV_OK;
|
||
|
}
|
||
|
}
|
||
|
mvOsPrintf("ethTxPolicy: Can't delete the MACDA entry\n");
|
||
|
return MV_NO_SUCH;
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
/*******************************************************************************
|
||
|
* mvEthDATxPolicyGet - Get TX policy of ethernet port for the outgoing packet,
|
||
|
* base on the DA.
|
||
|
*
|
||
|
* DESCRIPTION:
|
||
|
* This function return an existing TX policy for specific MACs.
|
||
|
*
|
||
|
* INPUT:
|
||
|
* void* pPortHndl - Pointer to port specific handler
|
||
|
* MV_U8* MAC - Pointer to DA MAC.
|
||
|
*
|
||
|
* OUTPUT:
|
||
|
* MV_ETH_TX_POLICY_ENTRY* pTxPolEntry - pointer to TX policy entry for
|
||
|
* this packet
|
||
|
*
|
||
|
* RETURN:
|
||
|
* int txQ - TX queue to place the outgoing packet.
|
||
|
*
|
||
|
*******************************************************************************/
|
||
|
static int mvEthDATxPolicyGet(void* pTxPolicyHndl, MV_U8* pDA,
|
||
|
MV_ETH_TX_POLICY_ENTRY* pTxPolicyEntry)
|
||
|
{
|
||
|
int idx=0;
|
||
|
ETH_TX_POLICY* pTxPolicy = (ETH_TX_POLICY*)pTxPolicyHndl;
|
||
|
MV_ETH_TX_POLICY_ENTRY* pPolicy = &pTxPolicy->txPolDef;
|
||
|
|
||
|
while(idx < pTxPolicy->txPolMaxDa)
|
||
|
{
|
||
|
if( (pTxPolicy->txPolDa[idx].policy.txQ != MV_INVALID) &&
|
||
|
(memcmp(pDA, pTxPolicy->txPolDa[idx].macDa,
|
||
|
MV_MAC_ADDR_SIZE) == 0) )
|
||
|
{
|
||
|
pPolicy = &pTxPolicy->txPolDa[idx].policy;
|
||
|
break;
|
||
|
}
|
||
|
idx++;
|
||
|
}
|
||
|
|
||
|
/* if valid entry found */
|
||
|
if(idx < pTxPolicy->txPolMaxDa)
|
||
|
{
|
||
|
if(pTxPolicyEntry != NULL)
|
||
|
{
|
||
|
pTxPolicyEntry->pHeader = pPolicy->pHeader;
|
||
|
pTxPolicyEntry->headerSize = pPolicy->headerSize;
|
||
|
pTxPolicyEntry->txQ = pPolicy->txQ;
|
||
|
}
|
||
|
return pPolicy->txQ;
|
||
|
}
|
||
|
else /* if no entry found - use defaults*/
|
||
|
{
|
||
|
if(pTxPolicyEntry != NULL)
|
||
|
{
|
||
|
pTxPolicyEntry->pHeader = pTxPolicy->txPolDef.pHeader;
|
||
|
pTxPolicyEntry->headerSize = pTxPolicy->txPolDef.headerSize;
|
||
|
pTxPolicyEntry->txQ = pTxPolicy->txPolDef.txQ;
|
||
|
}
|
||
|
return pTxPolicy->txPolDef.txQ;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*******************************************************************************
|
||
|
* mvEthTxPolicyGet - Get TX policy of ethernet port for the outgoing packet.
|
||
|
*
|
||
|
* DESCRIPTION:
|
||
|
* This function gets existing TX policy for outgoing packets.
|
||
|
*
|
||
|
* INPUT:
|
||
|
* void* pPortHndl - Pointer to port specific handler
|
||
|
* MV_U8* pPktInfo - Pointer to outgoing packet
|
||
|
*
|
||
|
* OUTPUT:
|
||
|
* MV_ETH_TX_POLICY_ENTRY* pTxPolEntry - pointer to TX policy entry for
|
||
|
* this packet
|
||
|
*
|
||
|
* RETURN:
|
||
|
* int txQ - TX queue to place the outgoing packet.
|
||
|
*
|
||
|
*******************************************************************************/
|
||
|
int mvEthTxPolicyGet(void* pTxPolicyHndl, MV_U8* pData,
|
||
|
MV_ETH_TX_POLICY_ENTRY* pTxPolicyEntry)
|
||
|
{
|
||
|
/* extract the destination MAC address */
|
||
|
return mvEthDATxPolicyGet(pTxPolicyHndl, pData, pTxPolicyEntry);
|
||
|
}
|
||
|
|
||
|
|
||
|
|