利用ZYNQ SOC快速開啟演算法驗證通路（6）——LWIP實現千兆TCP/IP網路傳輸

阿新 • • 發佈：2018-12-18

1 /****************************************************************************** 2 * 3 * Copyright (C) 2009 - 2014 Xilinx, Inc. All rights reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a copy 6 * of this software and associated documentation files (the "Software"), to deal

7 * in the Software without restriction, including without limitation the rights 8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 * copies of the Software, and to permit persons to whom the Software is 10 * furnished to do so, subject to the following conditions:

11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * Use of the Software is limited solely to applications: 16 * (a) running on a Xilinx device, or 17 * (b) that interact with a Xilinx device through a bus or interconnect.

18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 22 * XILINX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 23 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF 24 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 25 * SOFTWARE. 26 * 27 * Except as contained in this notice, the name of the Xilinx shall not be used 28 * in advertising or otherwise to promote the sale, use or other dealings in 29 * this Software without prior written authorization from Xilinx. 30 * 31 ******************************************************************************/ 32 33 #include <stdio.h> 34 35 #include "xparameters.h" 36 37 #include "netif/xadapter.h" 38 39 #include "platform.h" 40 #include "platform_config.h" 41 #if defined (__arm__) || defined(__aarch64__) 42 #include "xil_printf.h" 43 #endif 44 45 #include "lwip/tcp.h" 46 #include "xil_cache.h" 47 48 #if LWIP_DHCP==1 49 #include "lwip/dhcp.h" 50 #endif 51 52 /* defined by each RAW mode application */ 53 void print_app_header(); 54 int start_application(); 55 int transfer_data(); 56 void tcp_fasttmr(void); 57 void tcp_slowtmr(void); 58 59 /* missing declaration in lwIP */ 60 void lwip_init(); 61 62 #if LWIP_DHCP==1 63 extern volatile int dhcp_timoutcntr; 64 err_t dhcp_start(struct netif *netif); 65 #endif 66 67 extern volatile int TcpFastTmrFlag; 68 extern volatile int TcpSlowTmrFlag; 69 static struct netif server_netif; 70 struct netif *echo_netif; 71 72 void 73 print_ip(char *msg, struct ip_addr *ip) 74 { 75 print(msg); 76 xil_printf("%d.%d.%d.%d\n\r", ip4_addr1(ip), ip4_addr2(ip), 77 ip4_addr3(ip), ip4_addr4(ip)); 78 } 79 80 void 81 print_ip_settings(struct ip_addr *ip, struct ip_addr *mask, struct ip_addr *gw) 82 { 83 84 print_ip("Board IP: ", ip); 85 print_ip("Netmask : ", mask); 86 print_ip("Gateway : ", gw); 87 } 88 89 #if defined (__arm__) && !defined (ARMR5) 90 #if XPAR_GIGE_PCS_PMA_SGMII_CORE_PRESENT == 1 || XPAR_GIGE_PCS_PMA_1000BASEX_CORE_PRESENT == 1 91 int ProgramSi5324(void); 92 int ProgramSfpPhy(void); 93 #endif 94 #endif 95 96 #ifdef XPS_BOARD_ZCU102 97 #ifdef XPAR_XIICPS_0_DEVICE_ID 98 int IicPhyReset(void); 99 #endif 100 #endif 101 102 int main() 103 { 104 struct ip_addr ipaddr, netmask, gw; 105 106 /* the mac address of the board. this should be unique per board */ 107 unsigned char mac_ethernet_address[] = 108 { 0x00, 0x0a, 0x35, 0x00, 0x01, 0x02 }; 109 110 echo_netif = &server_netif; 111 #if defined (__arm__) && !defined (ARMR5) 112 #if XPAR_GIGE_PCS_PMA_SGMII_CORE_PRESENT == 1 || XPAR_GIGE_PCS_PMA_1000BASEX_CORE_PRESENT == 1 113 ProgramSi5324(); 114 ProgramSfpPhy(); 115 #endif 116 #endif 117 118 /* Define this board specific macro in order perform PHY reset on ZCU102 */ 119 #ifdef XPS_BOARD_ZCU102 120 IicPhyReset(); 121 #endif 122 123 init_platform(); 124 125 #if LWIP_DHCP==1 126 ipaddr.addr = 0; 127 gw.addr = 0; 128 netmask.addr = 0; 129 #else 130 /* initliaze IP addresses to be used */ 131 IP4_ADDR(&ipaddr, 192, 168, 1, 10); 132 IP4_ADDR(&netmask, 255, 255, 255, 0); 133 IP4_ADDR(&gw, 192, 168, 1, 1); 134 #endif 135 print_app_header(); 136 137 lwip_init();//網路引數初始化 138 139 /* Add network interface to the netif_list, and set it as default */ 140 if (!xemac_add(echo_netif, &ipaddr, &netmask, 141 &gw, mac_ethernet_address, 142 PLATFORM_EMAC_BASEADDR)) { 143 xil_printf("Error adding N/W interface\n\r"); 144 return -1; 145 } 146 netif_set_default(echo_netif); 147 148 /* now enable interrupts */ 149 platform_enable_interrupts(); 150 151 /* specify that the network if is up */ 152 netif_set_up(echo_netif); 153 154 #if (LWIP_DHCP==1) 155 /* Create a new DHCP client for this interface. 156 * Note: you must call dhcp_fine_tmr() and dhcp_coarse_tmr() at 157 * the predefined regular intervals after starting the client. 158 */ 159 dhcp_start(echo_netif); 160 dhcp_timoutcntr = 24; 161 162 while(((echo_netif->ip_addr.addr) == 0) && (dhcp_timoutcntr > 0)) 163 xemacif_input(echo_netif); 164 165 if (dhcp_timoutcntr <= 0) { 166 if ((echo_netif->ip_addr.addr) == 0) { 167 xil_printf("DHCP Timeout\r\n"); 168 xil_printf("Configuring default IP of 192.168.1.10\r\n"); 169 IP4_ADDR(&(echo_netif->ip_addr), 192, 168, 1, 10); 170 IP4_ADDR(&(echo_netif->netmask), 255, 255, 255, 0); 171 IP4_ADDR(&(echo_netif->gw), 192, 168, 1, 1); 172 } 173 } 174 175 ipaddr.addr = echo_netif->ip_addr.addr; 176 gw.addr = echo_netif->gw.addr; 177 netmask.addr = echo_netif->netmask.addr; 178 #endif 179 180 print_ip_settings(&ipaddr, &netmask, &gw);//列印關鍵網路引數 181 182 /* start the application (web server, rxtest, txtest, etc..) */ 183 start_application();//設定回撥函式，這些函式在特定事件發生時以函式指標的方式被呼叫 184 185 /* receive and process packets */ 186 while (1) { 187 if (TcpFastTmrFlag) {//傳送處理，如差錯重傳，通過定時器置位標誌位 188 tcp_fasttmr(); 189 TcpFastTmrFlag = 0; 190 } 191 if (TcpSlowTmrFlag) { 192 tcp_slowtmr(); 193 TcpSlowTmrFlag = 0; 194 } 195 xemacif_input(echo_netif);//連續接收資料包，並將資料包存入LWIP 196 transfer_data();//空函式 197 } 198 199 /* never reached */ 200 cleanup_platform(); 201 202 return 0; 203 }

利用ZYNQ SOC快速開啟演算法驗證通路（6）——LWIP實現千兆TCP/IP網路傳輸

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