oal_netbuf.h

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/*
 * Copyright (c) HiSilicon (Shanghai) Technologies Co., Ltd. 2022-2023. All rights reserved.
 * Description: netbuf function.
 * Author:
 * Create: 2022-04-07
 */
 
#ifndef __OAL_NETBUF_H__
#define __OAL_NETBUF_H__
 
/*****************************************************************************
  1 其他头文件包含
*****************************************************************************/
#include "oal_skbuff.h"
#include "lwip/netif.h"
 
/*****************************************************************************
  2 宏定义
*****************************************************************************/
typedef struct pbuf oal_lwip_buf;
typedef gfp_t        oal_gfp_enum_uint8;
 
/*****************************************************************************
  3 结构体定义
*****************************************************************************/
typedef struct {
    oal_netbuf_stru netbuf;
    td_u8 flag;     // 1: 已申请      0:未申请
    td_u8 direct;   // 2：TX   1：RX   0:else
    td_u16 resv;
} netbuf_stru;
 
#define ZERO_COPY_LWIP_DRIECT_RX 1
#define ZERO_COPY_LWIP_DRIECT_TX 2
 
td_void oal_init_netbuf_stru(td_void);
oal_netbuf_stru *oal_malloc_netbuf_stru(td_u8 direct);
td_void oal_free_netbuf_stru(oal_netbuf_stru *netbuf);
td_void oal_free_netbuf_list(oal_netbuf_head_stru *list_head);
#ifdef _PRE_LWIP_ZERO_COPY
oal_netbuf_stru *oal_pbuf_netbuf_alloc(td_u32 len);
td_u32 oal_malloc_netbuf_used(td_u8 direct);
#endif
 
/* 参考hmac_rx_copy_netbuff_etc */
oal_netbuf_stru* _oal_netbuf_copy(oal_netbuf_stru *src_netbuf, oal_gfp_enum_uint8 priority);
 
#endif