swlogtb.c

vt6528芯片交换机API函数和文档运行程序

/*
 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
 * All rights reserved.
 *
 * This software is copyrighted by and is the sole property of
 * VIA Networking Technologies, Inc. This software may only be used
 * in accordance with the corresponding license agreement. Any unauthorized
 * use, duplication, transmission, distribution, or disclosure of this
 * software is expressly forbidden.
 *
 * This software is provided by VIA Networking Technologies, Inc. "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 VIA Networking Technologies, Inc.
 * be liable for any direct, indirect, incidental, special, exemplary, or
 * consequential damages.
 *
 *
 * File:    swlogtb.c
 *
 * Purpose: MAC address table change log table operation functions
 *
 * Author:  Henry Lin
 *
 * Date:    Nov 08, 2004
 *
 * Functions:
 *
 * Revision History:
 *
 */


#if !defined(__STR_H__)
#include "str.h"
#endif
#if !defined(__SWITCH_H__)
#include "switch.h"
#endif
#if !defined(__SWREG_H__)
#include "swreg.h"
#endif
#if !defined(__SWSRAM_H__)
#include "swsram.h"
#endif
#if !defined(__SWLOGTB_H__)
#include "swlogtb.h"
#endif


/*---------------------  Static Definitions  ------------------------*/
#define LOGTBL_PTR_BASE         0x400
#define LOGTBL_ENTRY_NUMBER     0xC00
#define LOG_ENTRY_SIZE          SRAM_ENTRY_SIZE_16Byte

/*---------------------  Static Types  ------------------------------*/

/*---------------------  Static Macros  -----------------------------*/
#define MACLOG_INDEX_TO_SA(indx)      (SRAM_MAC_LOG_TBL_BASE_ADDR +  (indx<<SHIFT_NUM_SIZE_16Byte))

/*---------------------  Static Classes  ----------------------------*/

/*---------------------  Static Variables  --------------------------*/

/*---------------------  Static Functions  --------------------------*/
static void s_vGetField (UINT16 u16Indx, SLogEntry *pSEntry);

/*---------------------  Export Variables  --------------------------*/




BOOL SWLOGTB_bIsEntryEmpty(UINT16 u16Indx)
{
    UINT8   au8EntryBuf[LOG_ENTRY_SIZE], uu;
    UINT32 u32EntryAddr;


    u32EntryAddr = MACLOG_INDEX_TO_SA(u16Indx);
    // read memory entry
    SWSRAM_bReadEntry(u32EntryAddr, au8EntryBuf);

    for (uu = 0; uu < LOG_ENTRY_SIZE; uu++) {
        if (au8EntryBuf[uu] != 0)
            return FALSE;
    }
    return TRUE;
}


BOOL SWLOGTB_bGetEntry (SLogEntry *pSEntry)
{
    UINT16 u16LogReadPtr, u16UnreadNum, u16Indx;
    UINT32 u32EntryAddr;
    
    
    // read unread pointer
    SWREG_vReadU16(FWDCTL_UNRD_READ_PTR, &u16LogReadPtr);
    // read unread number
    SWREG_vReadU16(FWDCTL_NUM_UNRD_ENTRY, &u16UnreadNum);
    if (0 == u16UnreadNum)
        return FALSE;
    
    // calculate address
    u32EntryAddr = SRAM_MAC_LOG_TBL_BASE_ADDR + ((u16LogReadPtr - LOGTBL_PTR_BASE) % LOGTBL_ENTRY_NUMBER) * LOG_ENTRY_SIZE;
    // calculate index
    u16Indx = (u16LogReadPtr - LOGTBL_PTR_BASE) % LOGTBL_ENTRY_NUMBER;
    s_vGetField(u16Indx, pSEntry);
    
    // write processed number
    SWREG_vWriteU16(FWDCTL_NUM_PROC_ENTRY, 1);
            
    return TRUE;                
}


BOOL SWLOGTB_bGetEntryByIndx(UINT16 u16Indx, SLogEntry *pSEntry)
{
    s_vGetField(u16Indx, pSEntry);
    
    return TRUE;
}


static void s_vGetField (UINT16 u16Indx, SLogEntry *pSEntry)
{
    UINT8  au8EntryBuf[LOG_ENTRY_SIZE];
    UINT32 u32EntryAddr;


    u32EntryAddr = MACLOG_INDEX_TO_SA(u16Indx);
    SWSRAM_bReadEntry(u32EntryAddr, au8EntryBuf);        
    // case type
    SWSRAM_vExtractBitsByBool(au8EntryBuf, LOG_BIT_CAST_TYPE_S, LOG_BIT_CAST_TYPE_E, &pSEntry->bTypeMcst);
    if (FALSE == pSEntry->bTypeMcst) {  //unicast
        SWSRAM_vExtractBitsByBool(au8EntryBuf, LOG_BIT_FLT_SMAC_S, LOG_BIT_FLT_SMAC_E, &(pSEntry->bFltrSmac));        
        SWSRAM_vExtractBitsByBool(au8EntryBuf, LOG_BIT_SMAC_REDIR_S, LOG_BIT_SMAC_REDIR_E, &(pSEntry->bNotRedirSmac));        
        // trunk group or not
        SWSRAM_vExtractBitsByBool(au8EntryBuf, LOG_BIT_TRK_TYPE_S, LOG_BIT_TRK_TYPE_E, &(pSEntry->bTrkGrp));        
        // source port id
        SWSRAM_vExtractBitsByByte(au8EntryBuf, LOG_BIT_SRC_ID_S, LOG_BIT_SRC_ID_E, &(pSEntry->u8SrcId));
    }
    else {  
        // multicast mask
        SWSRAM_vExtractBits(au8EntryBuf, LOG_BIT_MCST_MASK_S, LOG_BIT_MCST_MASK_E, (PUINT8)&(pSEntry->u16McstIdx));
    }
    // log entry property
    SWSRAM_vExtractBitsByByte(au8EntryBuf, LOG_BIT_SECU_VIO_S, LOG_BIT_SECU_VIO_E, &pSEntry->u8SecuVio);
    SWSRAM_vExtractBitsByBool(au8EntryBuf, LOG_BIT_LEARNING_S, LOG_BIT_LEARNING_E, &pSEntry->bLearning);
    SWSRAM_vExtractBitsByByte(au8EntryBuf, LOG_BIT_SCAN_S, LOG_BIT_SCAN_E, &pSEntry->u8Scan);
    SWSRAM_vExtractBitsByBool(au8EntryBuf, LOG_BIT_AGEOUT_S, LOG_BIT_AGEOUT_E, &pSEntry->bAgeOut);
    SWSRAM_vExtractBitsByBool(au8EntryBuf, LOG_BIT_LOCCHG_S, LOG_BIT_LOCCHG_E, &pSEntry->bLocChg);
    // extra entry id                        
    SWSRAM_vExtractBits(au8EntryBuf, LOG_BIT_EXTRA_ENTRYID_S, LOG_BIT_EXTRA_ENTRYID_E, (PUINT8)&pSEntry->u16ExtraEntryId);
    // entry id
    SWSRAM_vExtractBits(au8EntryBuf, LOG_BIT_ENTRYID_S, LOG_BIT_ENTRYID_E, (PUINT8)&pSEntry->u16EntryId);
    // mac address
    SWSRAM_vExtractBitsLtl(au8EntryBuf, LOG_BIT_MACADDR_S, LOG_BIT_MACADDR_E, pSEntry->abyMacAddr);
    // fid
    SWSRAM_vExtractBits(au8EntryBuf, LOG_BIT_FID_S, LOG_BIT_FID_E, (PUINT8)&pSEntry->u16Fid);    
}