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/*
*
* Copyright (c) 2018 Huawei Technologies Co.,Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <inttypes.h>
#include <errno.h>
#include <ctype.h>
#include <sys/queue.h>

#include "common_mem_base_type.h"

#include "common_mem_common.h"

#include "common_mem_memzone.h"

#include "common_mem_mempool.h"
#include "common_mem_buf.h"

#include "nstack_log.h"
#include "nstack_securec.h"

#include "common_func.h"
#include "common_pal_bitwide_adjust.h"

#define LOG_ERR   0
#define LOG_WARN  1
#define LOG_INFO  2
#define LOG_DEBUG 3
#define LOG_MAX   4

#define COMMON_LOG_PRINT(level, fmt, args...) \
        if (level <= log_level) NSRTP_LOGERR("===>[COMMON]"fmt, ##args); \

#define COMMON_PANIC(fmt) \
        NSRTP_LOGERR("==>[COMMON_PANIC]"fmt); \
        common_dump_stack();  \

#define PARA1_SET(argv, tempargv, Index, para1) do {\
    retVal = strcpy_s(tempargv[Index], PATA_STRLENT, para1);\
    if (retVal != EOK)\
    {\
        NSRTP_LOGERR("STRCPY_S failed]ret=%d", retVal);\
        return DMM_MBUF_RET_ERR;\
    }\
    argv[Index] = tempargv[Index]; \
    Index ++; } while (0)

#define PARA2_SET(argv, tempargv, Index, para1, para2) do {\
    retVal = strcpy_s(tempargv[Index], PATA_STRLENT, para1); \
    if (retVal != EOK)\
    {\
        NSRTP_LOGERR("STRCPY_S failed]ret=%d", retVal);\
        return DMM_MBUF_RET_ERR;\
    }\
    argv[Index] = tempargv[Index]; \
    Index++; \
    retVal = strcpy_s(tempargv[Index], PATA_STRLENT, para2); \
    if (retVal != EOK)\
    {\
        NSRTP_LOGERR("STRCPY_S failed]ret=%d", retVal);\
        return DMM_MBUF_RET_ERR;\
    }\
    argv[Index] = tempargv[Index]; \
    Index ++; } while (0)

#define PATA_STRLENT     64
#define PATA_NUM_MAX     12

int log_level = LOG_INFO;

int
nscomm_pal_module_init(nsfw_mem_para * para,
                       common_mem_pal_module_info * pinfo, u8 app_mode)
{
    char tempargv[PATA_NUM_MAX][PATA_STRLENT];
    char *argv[PATA_NUM_MAX];
    char tempbuf[PATA_STRLENT];
    unsigned int Index = 0;
    int ioffset = 0;
    int agindex = 0;
    int intmask = 0;
    int retVal;
    char name[10] = { '\0' };

    if (para == NULL)
    {
        NSRTP_LOGERR("para is null");
        return DMM_MBUF_RET_ERR;
    }

    retVal = memset_s(tempargv, sizeof(tempargv), '\0', sizeof(tempargv));
    if (EOK != retVal)
    {
        NSRTP_LOGERR("MEMSET_S failed]ret=%d", retVal);
        return DMM_MBUF_RET_ERR;
    }
    retVal = memset_s(argv, sizeof(argv), 0, sizeof(argv));
    if (EOK != retVal)
    {
        NSRTP_LOGERR("MEMSET_S failed]ret=%d", retVal);
        return DMM_MBUF_RET_ERR;
    }
    if (NSFW_PROC_MAIN == para->enflag)
    {
        if (para->iargsnum != 0)
        {
            if (common_mem_pal_init(para->iargsnum, para->pargs) < 0)
            {
                COMMON_LOG_PRINT(LOG_ERR, "Cannot init pal\r\n");
                return DMM_MBUF_RET_ERR;
            }
            else
            {
                return DMM_MBUF_RET_OK;
            }
        }

        PARA1_SET(argv, tempargv, agindex, "nStackMain");
        PARA2_SET(argv, tempargv, agindex, "-c", "0x1");
        PARA2_SET(argv, tempargv, agindex, "-n", "4");
        PARA1_SET(argv, tempargv, agindex, "--huge-dir=/mnt/nstackhuge");
        PARA1_SET(argv, tempargv, agindex, "--proc-type=primary");

        if (app_mode == 1)
        {
            sprintf(name, "dmm_app_%ld", (long) getpid());
            PARA2_SET(argv, tempargv, agindex, "--file-prefix", name);
            PARA1_SET(argv, tempargv, agindex, "--no-pci");

            // TODO: the size of the memory should not be fixed
            PARA2_SET(argv, tempargv, agindex, "-m", "32");
        }
        else
        {
            // TODO: replay the name 'nStackMain'
            /* snprintf(name, 10, "dmm_main_%ld", (long) getpid()); */
            PARA2_SET(argv, tempargv, agindex, "--file-prefix", "nStackMain");
            PARA2_SET(argv, tempargv, agindex, "-m", "2048");
        }

    }
    else
    {
        PARA1_SET(argv, tempargv, agindex, "nStackMain");
        PARA2_SET(argv, tempargv, agindex, "--file-prefix", "nStackMain");

        retVal = sprintf_s(tempbuf, PATA_STRLENT, "0x");
        if (-1 == retVal)
        {
            NSRTP_LOGERR("SPRINTF_S failed]ret=%d", ioffset);
            return DMM_MBUF_RET_ERR;
        }
        ioffset = retVal;
        for (Index = 0; Index < LCORE_MASK_MAX; Index++)
        {
            if (ioffset >= PATA_STRLENT)
            {
                NSRTP_LOGERR("SPRINTF_S tempbuf overflow]ioffset=%d",
                             ioffset);
                return DMM_MBUF_RET_ERR;
            }
            retVal =
                sprintf_s(&(tempbuf[ioffset]), PATA_STRLENT - ioffset, "%8u",
                          pinfo->ilcoremask[Index]);
            if (-1 == retVal)
            {
                NSRTP_LOGERR("SPRINTF_S failed]ret=%d", ioffset);
                return DMM_MBUF_RET_ERR;
            }
            ioffset = ioffset + retVal;
            intmask |= pinfo->ilcoremask[Index];
        }
        if (0 == intmask)
        {
            PARA2_SET(argv, tempargv, agindex, "-c", "0x1");
        }
        else
        {
            PARA2_SET(argv, tempargv, agindex, "-c", tempbuf);
        }
        if (pinfo->ishare_mem_size > 0)
        {
            retVal = memset_s(tempbuf, PATA_STRLENT, 0, PATA_NUM_MAX);
            if (EOK != retVal)
            {
                NSRTP_LOGERR("MEMSET_S failed]ret=%d", retVal);
                return DMM_MBUF_RET_ERR;
            }
            retVal =
                sprintf_s(tempbuf, PATA_STRLENT, "%d",
                          pinfo->ishare_mem_size);
            if (-1 == retVal)
            {
                NSRTP_LOGERR("SPRINTF_S failed]ret=%d", retVal);
                return DMM_MBUF_RET_ERR;
            }
            PARA2_SET(argv, tempargv, agindex, "-m", tempbuf);
        }

        retVal = memset_s(tempbuf, PATA_STRLENT, 0, PATA_NUM_MAX);
        if (EOK != retVal)
        {
            NSRTP_LOGERR("MEMSET_S failed]ret=%d", retVal);
            return DMM_MBUF_RET_ERR;
        }

        switch (pinfo->ucproctype)
        {
            case DMM_PROC_T_PRIMARY:
                retVal =
                    sprintf_s(tempbuf, PATA_STRLENT, "--proc-type=primary");
                if (-1 == retVal)
                {
                    NSRTP_LOGERR("SPRINTF_S failed]ret=%d", retVal);
                    return DMM_MBUF_RET_ERR;
                }
                break;
            case DMM_PROC_T_SECONDARY:
                retVal =
                    sprintf_s(tempbuf, PATA_STRLENT, "--proc-type=secondary");
                if (-1 == retVal)
                {
                    NSRTP_LOGERR("SPRINTF_S failed]ret=%d", retVal);
                    return DMM_MBUF_RET_ERR;
                }
                break;
            case DMM_PROC_T_AUTO:
            default:
                retVal = sprintf_s(tempbuf, PATA_STRLENT, "--proc-type=auto");
                if (-1 == retVal)
                {
                    NSRTP_LOGERR("SPRINTF_S failed]ret=%d", retVal);
                    return DMM_MBUF_RET_ERR;
                }
                break;
        }
        PARA1_SET(argv, tempargv, agindex, tempbuf);

        if (DMM_HUGTBL_DISABLE == pinfo->uchugeflag)
        {
            PARA1_SET(argv, tempargv, agindex, "--no-huge");
        }
    }
    if (common_mem_pal_init(agindex, argv) < 0)
    {
        COMMON_LOG_PRINT(LOG_ERR, "Cannot init pal\r\n");
        return DMM_MBUF_RET_ERR;
    }
    return DMM_MBUF_RET_OK;
}

void *nscomm_memzone_data_reserve_name(const char *name, size_t len,
                                       int socket_id)
{
    const struct common_mem_memzone *mz = NULL;
    /*
       rte_memzone_reserve must Call first,  cause rte_memzone_reserve has a globe lock.
       while proc race happen, who(calls A) got lock first will create memzone success.
       others create same memzone proc will got lock after A, and rte_memzone_reserve return NULL;
       so while rte_memzone_reserve return NULL we need do rte_memzone_lookup;
     */
    mz = common_mem_memzone_reserve(name, len, socket_id, 0);
    if (mz == NULL)
    {
        mz = common_mem_memzone_lookup(name);
    }

    return mz ? (void *) ADDR_SHTOL(mz->addr_64) : NULL;
}

void *nscomm_memzone_data_lookup_name(const char *name)
{
    void *addr = NULL;
    const struct common_mem_memzone *mz = NULL;
    mz = common_mem_memzone_lookup(name);
    if (mz == NULL)
    {
        return NULL;
    }
    addr = (void *) ADDR_SHTOL(mz->addr_64);
    return addr;
}