318 lines
9.9 KiB
C
318 lines
9.9 KiB
C
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/*******************************************************************************
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Copyright (C) Marvell Interfdbional Ltd. and its affiliates
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This software file (the "File") is owned and distributed by Marvell
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Interfdbional Ltd. and/or its affiliates ("Marvell") under the following
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alterfdbive licensing terms. Once you have made an election to distribute the
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File under one of the following license alterfdbives, please (i) delete this
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introductory statement regarding license alterfdbives, (ii) delete the two
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license alterfdbives 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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* mvFastPath.c - Marvell Fast Route Routing and Bridge
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*
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* DESCRIPTION:
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*
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* Supported Features:
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* - OS independent.
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*
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*******************************************************************************/
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/* includes */
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#include "mvOs.h"
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#include "mvDebug.h"
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#include "eth/nfp/mvNfp.h"
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#include "eth/mvEth.h"
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struct fdbRuleHashBucket *fdbRuleDb;
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MV_U32 fdbRuleDbSize;
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MV_U32 fdbMember[ETH_FP_IFINDEX_MAX];
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MV_U32 fdbRuleUpdateCount = 0;
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MV_U32 fdbRuleSetCount = 0;
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MV_U32 fdbRuleDeleteCount = 0;
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MV_U32 fdbHashMaxDepth;
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MV_STATUS mvFpFdbInit(MV_U32 dbSize)
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{
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fdbRuleDb = (struct fdbRuleHashBucket *)mvOsMalloc(sizeof(struct fdbRuleHashBucket)*dbSize);
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if (fdbRuleDb == NULL) {
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mvOsPrintf("NFP (fdb): not enough memory\n");
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return MV_NO_RESOURCE;
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}
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fdbRuleDbSize = dbSize;
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memset(fdbRuleDb, 0, sizeof(struct fdbRuleHashBucket)*fdbRuleDbSize);
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memset(fdbMember, 0, sizeof(fdbMember));
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mvOsPrintf("NFP (fdb) init %d entries, %d bytes\n",
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fdbRuleDbSize, sizeof(struct fdbRuleHashBucket)*fdbRuleDbSize);
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return MV_OK;
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}
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/* Clear Fast Route Bridge Rule Database (SNAT + DNAT table) */
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MV_STATUS mvFpFdbClear(void)
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{
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MV_U32 i = fdbRuleDbSize;
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MV_FP_FDB_RULE *rule, *tmp;
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if (fdbRuleDb != NULL)
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return MV_NOT_INITIALIZED;
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while (i--) {
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rule = fdbRuleDb[i].ruleChain;
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while (rule) {
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tmp = rule;
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rule = rule->next;
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mvOsFree(tmp);
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}
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fdbRuleDb[i].ruleChain = NULL;
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}
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return MV_OK;
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}
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void mvFpFdbDestroy(void)
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{
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if (fdbRuleDb != NULL)
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mvOsFree(fdbRuleDb);
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}
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static INLINE int mvFpFdbRuleCmp(MV_FP_RULE_FDB_INFO *rule1, MV_FP_RULE_FDB_INFO *rule2)
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{
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return !((rule1->bridge == rule2->bridge) &&
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(rule1->ifIndex == rule2->ifIndex) &&
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!memcmp(rule1->mac, rule2->mac, 6));
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}
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static INLINE MV_U32 mvFpFdbRuleHash(MV_FP_FDB_RULE *rule)
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{
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return mv_jhash_3words( rule->fdbInfo.bridge,
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0,*(MV_U32*)(rule->fdbInfo.mac+2), fp_ip_jhash_iv);
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}
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MV_STATUS mvFpFdbRuleSet(MV_FP_FDB_RULE *newrule)
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{
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int depth = 0;
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MV_U32 hash;
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MV_FP_FDB_RULE* rule;
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/* ignore foreign ifindex */
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if (newrule->fdbInfo.ifIndex >= ETH_FP_IFINDEX_MAX)
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return MV_OUT_OF_RANGE;
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hash = mvFpFdbRuleHash(newrule);
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hash &= (fdbRuleDbSize - 1);
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rule = fdbRuleDb[hash].ruleChain;
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while (rule) {
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if (!mvFpFdbRuleCmp(&rule->fdbInfo, &newrule->fdbInfo))
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{
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fdbRuleUpdateCount++;
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goto out;
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}
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depth++;
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rule = rule->next;
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}
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fdbRuleSetCount++;
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if(depth > fdbHashMaxDepth)
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fdbHashMaxDepth = depth;
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rule = mvOsMalloc(sizeof(MV_FP_FDB_RULE));
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if (!rule) {
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mvOsPrintf("NFP (fdb): can't allocate new rule\n");
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return MV_FAIL;
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}
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/* FIXME: No spinlocks */
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rule->next = fdbRuleDb[hash].ruleChain;
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fdbRuleDb[hash].ruleChain = rule;
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out:
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mvOsMemcpy(rule, newrule, sizeof(MV_FP_FDB_RULE));
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if (rule->fdbInfo.flags & MV_FP_FDB_IS_LOCAL) {
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fdbMember[rule->fdbInfo.ifIndex] = rule->fdbInfo.bridge;
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fdbMember[rule->fdbInfo.bridge] = rule->fdbInfo.bridge;
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}
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MV_NFP_DBG("NFP (fdb): new bridge=%d ifIndex=%d %02X:%02X:%02X:%02X:%02X:%02X flags=%x\n",
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rule->fdbInfo.bridge, rule->fdbInfo.ifIndex,
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rule->fdbInfo.mac[0], rule->fdbInfo.mac[1], rule->fdbInfo.mac[2],
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rule->fdbInfo.mac[3], rule->fdbInfo.mac[4], rule->fdbInfo.mac[5],
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rule->fdbInfo.flags);
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return MV_OK;
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}
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MV_STATUS mvFpFdbRuleDel(MV_FP_FDB_RULE *oldrule)
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{
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MV_U32 hash;
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MV_FP_FDB_RULE* rule, *prev;
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/* ignore foreign ifindex */
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if (oldrule->fdbInfo.ifIndex >= ETH_FP_IFINDEX_MAX)
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return MV_OUT_OF_RANGE;
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if (oldrule->fdbInfo.flags & MV_FP_FDB_IS_LOCAL) {
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fdbMember[oldrule->fdbInfo.ifIndex] = 0;
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fdbMember[oldrule->fdbInfo.bridge] = 0;
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MV_NFP_DBG("NFP (fdb): del member bridge=%d ifIndex=%d\n",
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oldrule->fdbInfo.bridge, oldrule->fdbInfo.ifIndex);
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}
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hash = mvFpFdbRuleHash(oldrule);
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hash &= (fdbRuleDbSize - 1);
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rule = fdbRuleDb[hash].ruleChain;
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prev = NULL;
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while (rule) {
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if (!mvFpFdbRuleCmp(&rule->fdbInfo, &oldrule->fdbInfo)) {
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if (prev)
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prev->next = rule->next;
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else
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fdbRuleDb[hash].ruleChain = rule->next;
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fdbRuleDeleteCount++;
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MV_NFP_DBG("NFP (fdb): del bridge=%d ifIndex=%d %02X:%02X:%02X:%02X:%02X:%02X flags=%x count=%d\n",
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rule->fdbInfo.bridge, rule->fdbInfo.ifIndex,
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rule->fdbInfo.mac[0], rule->fdbInfo.mac[1], rule->fdbInfo.mac[2],
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rule->fdbInfo.mac[3], rule->fdbInfo.mac[4], rule->fdbInfo.mac[5],
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rule->fdbInfo.flags, rule->mgmtInfo.new_count);
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mvOsFree(rule);
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return MV_OK;
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}
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prev = rule;
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rule = rule->next;
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}
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return MV_NOT_FOUND;
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}
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MV_U32 mvFpFdbRuleAge(MV_FP_FDB_RULE *oldrule)
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{
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MV_U32 hash, age;
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MV_FP_FDB_RULE* rule, *prev;
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/* ignore foreign ifindex */
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if (oldrule->fdbInfo.ifIndex >= ETH_FP_IFINDEX_MAX)
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return 0;
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hash = mvFpFdbRuleHash(oldrule);
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hash &= (fdbRuleDbSize - 1);
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rule = fdbRuleDb[hash].ruleChain;
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prev = NULL;
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while (rule) {
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if (!mvFpFdbRuleCmp(&rule->fdbInfo, &oldrule->fdbInfo)) {
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MV_NFP_DBG("NFP (fdb): age bridge=%d ifIndex=%d %02X:%02X:%02X:%02X:%02X:%02X flags=%x age=%d\n",
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rule->fdbInfo.bridge, rule->fdbInfo.ifIndex,
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rule->fdbInfo.mac[0], rule->fdbInfo.mac[1], rule->fdbInfo.mac[2],
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rule->fdbInfo.mac[3], rule->fdbInfo.mac[4], rule->fdbInfo.mac[5],
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rule->fdbInfo.flags, rule->mgmtInfo.new_count);
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age = rule->mgmtInfo.new_count;
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rule->mgmtInfo.new_count = 0;
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return age;
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}
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prev = rule;
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rule = rule->next;
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}
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return 0;
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}
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static void mvFpFdbRulePrint(MV_FP_FDB_RULE *rule, MV_U32 hash)
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{
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mvOsPrintf("NFP (fdb): 0x%x bridge=%d ifIndex=%d %02X:%02X:%02X:%02X:%02X:%02X flags=%x count=%d\n",
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mvFpFdbRuleHash((MV_FP_FDB_RULE*)rule),
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rule->fdbInfo.bridge, rule->fdbInfo.ifIndex,
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rule->fdbInfo.mac[0], rule->fdbInfo.mac[1], rule->fdbInfo.mac[2],
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rule->fdbInfo.mac[3], rule->fdbInfo.mac[4], rule->fdbInfo.mac[5],
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rule->fdbInfo.flags, rule->mgmtInfo.new_count);
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}
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MV_STATUS mvFpFdbPrint(void)
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{
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MV_U32 i = fdbRuleDbSize;
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MV_FP_FDB_RULE *rule;
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for (i=0; i<ETH_FP_IFINDEX_MAX; i++) {
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if (fdbMember[i])
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mvOsPrintf("NFP (fdb): bridge=%d ifIndex=%d\n",fdbMember[i],i);
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}
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for (i=0; i<fdbRuleDbSize; i++) {
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rule = fdbRuleDb[i].ruleChain;
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while (rule) {
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mvFpFdbRulePrint(rule, i);
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rule = rule->next;
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}
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}
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return MV_OK;
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}
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