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问 在44b0＋ucos下做lwip的移植，问题多多啊！

   我也不知道怎么搞得，奇怪了，我的8019驱动为什么能收ARP,UDP包，却收不到ICMP 和TCP包！！
   ARP已经通了，而中断对icmp （ping）和tcp （telnet）却不理？？我是用Ethereal抓的包。
   各位碰到没有，帮我想想问题出在那儿了！！多谢！！


    答 1: 同样是数据包，差距咋这么大呢！！即然能正确接收ARP UDP包，说明我的8019驱动应该是好的吧？怎么会有这种问题？？？

ping 172.16.4.15     这个ip不存在，发4个ARP包，都能接收并处理；
ping 17727           17727 当作主机名，发3个NBNS包，nbns是udp，能收到；
ping 172.16.4.18     8019 的ip，发4个ICMP包，网卡根本不中断；
telnet 172.16.4.18 7  发3个TCP包，没反应：（

？？？？？？？？？？？？？？？？？？？？？？？？？
兄弟们帮忙分析一下，想不通啊！！多谢
答 2: 把驱动源代码贴出，这样才好帮你改，这样说鬼知道是什么问题 答 3: 应该是软件问题，好好找找。 答 4: 是skyeye 杨晔的驱动驱动太长了，能把人看晕的

下面是8019中断的代码，我就在这里设断点，ARP UCP包能中断，而icmp和tcp就停不下来。？？？？

void __irq  ne2k_isr(void)
{
    u8_t  isr,curr,bnry;
    struct netif *netif;
    rI_ISPC =BIT_EINT1;
    //close nic
    //******************** add by maokor for debug ,2005.6.17*******
    outb(CMD_PAGE2 | CMD_NODMA | CMD_STOP,NE_CR);
    isr = inb(NE_IMR);
    //*****************************************************888888
    //in PAGE0
    outb(CMD_PAGE0 | CMD_NODMA | CMD_STOP,NE_CR);
    isr = inb(NE_ISR);

    // ram overflow interrupt
    if (isr & ISR_OVW) {
        outb(ISR_OVW,NE_ISR);        // clear interrupt
    //    ne2k_overflowProcess();              //yangye :no overflow now
    }
    
    // error transfer interrupt ,NIC abort tx due to excessive collisions    
    if (isr & ISR_TXE) {
        outb(ISR_TXE,NE_ISR);        // clear interrupt
         //temporarily do nothing
    }

    // Rx error , reset BNRY pointer to CURR (use SEND PACKET mode)
    if (isr & ISR_RXE) {
        outb(ISR_RXE,NE_ISR);        // clear interrupt
        
        outb(CMD_PAGE1 | CMD_NODMA | CMD_STOP,NE_CR);
        curr = inb(NE_CURR);
        outb(CMD_PAGE0 | CMD_NODMA | CMD_STOP,NE_CR);
        outb(curr, NE_BNRY);
    }
    
    //got packet with no errors
    if (isr & ISR_PRX) {
        outb(ISR_PRX, NE_ISR);        // clear interrupt

        outb(CMD_PAGE1 | CMD_NODMA | CMD_STOP, NE_CR);
        curr  =  inb(NE_CURR);
        outb(CMD_PAGE0 | CMD_NODMA | CMD_STOP, NE_CR);
        bnry = inb(NE_BNRY);
        //yangye 2003-1-21
        //get more than one packet until receive buffer is empty
        while(curr != bnry){
            ne2k_recv_packet(rtl8019if_netif);
            outb(CMD_PAGE1 | CMD_NODMA | CMD_STOP, NE_CR);
            curr =  inb(NE_CURR);
            outb(CMD_PAGE0 | CMD_NODMA | CMD_STOP, NE_CR);
            bnry =     inb(NE_BNRY);            
            }
    }
        
    //Transfer complelte, do nothing here
    if( isr & ISR_PTX){
        PRINT("ne2k_isr: is ISR_PTX\n");
        outb(ISR_PTX, NE_ISR);          // clear interrupt
    }
        
    outb(CMD_PAGE0 | CMD_NODMA | CMD_STOP, NE_CR);
    outb(0xff, NE_ISR);            // clear ISR    
    //open nic for next packet
    outb(CMD_PAGE0 | CMD_NODMA | CMD_RUN, NE_CR);

}
答 5: 8019 有bug,千万要注意可以参考linux下的驱动，那个是修正bug的，千万不要用没有经过实践验证的代码。 答 6: 啊！多谢各位回复！
wangkj：8019有bug？能具体说说吗，skyeye的驱动好像也有人移植成功过！ 答 7: 可能是mac地址不对我对比了一下，发现这几种包的区别是目的mac不同，arp是广播的就能受到。难道是网卡的mac设置不对？

8019发送的arp回复包中的mac地址是直接读寄存器的还是程序设置的？怎么会错呢？

我把arp包贴出来，兄弟们帮我分析一下，另外这个包有校验错误(incorrect, should be 0xaf8108fa)不知哪里错了？


No.     Time        Source                Destination           Protocol Info
     65 1436.867353 25:01:00:ea:5d:00     172.16.4.10           ARP      172.16.4.18 is at 25:01:00:ea:5d:00

Frame 65 (64 bytes on wire, 64 bytes captured)
Ethernet II, Src: 25:01:00:ea:5d:00, Dst: 00:05:5d:02:14:db
    Destination: 00:05:5d:02:14:db (172.16.4.10)
    Source: 25:01:00:ea:5d:00 (25:01:00:ea:5d:00)
    Type: ARP (0x0806)
    Trailer: 000000000000000000000000000000000000
    Frame check sequence: 0xc4be25b7 (incorrect, should be 0xaf8108fa)
Address Resolution Protocol (reply)
    Hardware type: Ethernet (0x0001)
    Protocol type: IP (0x0800)
    Hardware size: 6
    Protocol size: 4
    Opcode: reply (0x0002)
    Sender MAC address: 25:01:00:ea:5d:00 (25:01:00:ea:5d:00)
    Sender IP address: 172.16.4.18 (172.16.4.18)
    Target MAC address: 00:05:5d:02:14:db (172.16.4.10)
    Target IP address: 172.16.4.10 (172.16.4.10)
答 8: 发现mac地址没有正确保存，才错误发现个问题，帮我看看！
struct RTL8019if {
  struct eth_addr *ethaddr;
  };

packed struct eth_addr {
  u8_t addr[6];
} PACK_STRUCT_STRUCT;


static void
low_level_init(struct netif * netif)
{
    u8_t i, isr;
    struct RTL8019if *rtl8019if,rtl8019;
    u8_t mac_addr[6];
        mac_addr[0]=inb(NE_PAR0);
        mac_addr[1]=inb(NE_PAR1);
        mac_addr[2]=inb(NE_PAR2);
        mac_addr[3]=inb(NE_PAR3);
        mac_addr[4]=inb(NE_PAR4);
        mac_addr[5]=inb(NE_PAR5);
      /* make up an address. */
      rtl8019if->ethaddr->addr[0] = mac_addr[0];
      rtl8019if->ethaddr->addr[1] = mac_addr[1];
      rtl8019if->ethaddr->addr[2] = mac_addr[2];
      rtl8019if->ethaddr->addr[3] = mac_addr[3];
      rtl8019if->ethaddr->addr[4] = mac_addr[4];
      rtl8019if->ethaddr->addr[5] = mac_addr[5];
    
    
    rtl8019=*rtl8019if;

mac_addr数组读值正确 ，但是 赋值给rtl8019if->ethaddr->addr时没有成功，sdt中查看变量rtl8019值，只能看到->ethaddr是0x00000000。是数据结构packed的问题吗？多谢！