1 /* 2 * Copyright (c) 2020 HiSilicon (Shanghai) Technologies CO., LIMITED. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 * Description: netbuf function. 15 * Author: 16 * Create: 2022-04-07 17 */ 18 19 #ifndef __OAL_NETBUF_H__ 20 #define __OAL_NETBUF_H__ 21 22 /***************************************************************************** 23 1 其他头文件包含 24 *****************************************************************************/ 25 #include "oal_skbuff.h" 26 #include "lwip/netif.h" 27 28 /***************************************************************************** 29 2 宏定义 30 *****************************************************************************/ 31 typedef struct pbuf oal_lwip_buf; 32 typedef gfp_t oal_gfp_enum_uint8; 33 34 /***************************************************************************** 35 3 结构体定义 36 *****************************************************************************/ 37 typedef struct { 38 oal_netbuf_stru netbuf; 39 td_u8 flag; // 1: 已申请 0:未申请 40 td_u8 direct; // 2：TX 1：RX 0:else 41 td_u16 resv; 42 } netbuf_stru; 43 44 #define ZERO_COPY_LWIP_DRIECT_RX 1 45 #define ZERO_COPY_LWIP_DRIECT_TX 2 46 47 td_void oal_init_netbuf_stru(td_void); 48 oal_netbuf_stru *oal_malloc_netbuf_stru(td_u8 direct); 49 td_void oal_free_netbuf_stru(oal_netbuf_stru *netbuf); 50 td_void oal_free_netbuf_list(oal_netbuf_head_stru *list_head); 51 #ifdef _PRE_LWIP_ZERO_COPY 52 oal_netbuf_stru *oal_pbuf_netbuf_alloc(td_u32 len); 53 td_u32 oal_malloc_netbuf_used(td_u8 direct); 54 #endif 55 56 /* 参考hmac_rx_copy_netbuff_etc */ 57 oal_netbuf_stru* _oal_netbuf_copy(oal_netbuf_stru *src_netbuf, oal_gfp_enum_uint8 priority); 58 59 #endif 60