VxWorks网卡驱动实现方式及配置方法

本文主要介绍了在VxWorks系统中如何实现网卡驱动及其配置方法，包括驱动程序编写、注册、挂载等，以及对应的配置文件的编辑及其参数解释。

#include <vxWorks.h>
#include <stdio.h>
#include <string.h>
#include <netLib.h>
#include <etherLib.h>

#define IFNAME "gei"
#define IFUNIT 0

int myifInit (char *ifname, int unit, int ivec, ushort intLevel);

/*自定义网卡驱动初始化函数*/
int myifInit (char *ifname, int unit, int ivec, ushort intLevel)
{
    int iface; //网卡接口描述符

    iface = if_attach (ether_attach, IFNAME, IFUNIT, ETHER_HDR_SIZE, TRUE, NULL);
    //将网卡驱动绑定至网卡接口上

    if (iface == ERROR)
    {
        printf ("Could not attach device %s%d.\n", IFNAME, IFUNIT);
        return (ERROR);
    }

    /* 配置网络地址、掩码等 */
    ifconfig (IFNAME, (char *) "10.0.0.2", (char *) "255.255.255.0");
    return (OK);
}

/*网卡驱动注册*/
void myifDriverRegister (void)
{
    ether_attach_func_add(myifInit, IFNAME);
}

/*网卡驱动挂载*/
void myifMount(char *dev, char *mntpnt)
{
    char devName [256];
    sprintf (devName, "%s%d",dev,IFUNIT);
    iosDevAdd ((DEV_HDR *) &myifDevHdr, devName, myifDevCreate, 0, 0, 0);
    /*Edit the boot parameters to include*/
    /*iosFdDevCreate (".gei",1,0); */
    iosDevAdd (NULL, devName, (FUNCPTR)ixVFS_devCreate, 0, 0, 0);
    dosFsDevInit (TAR_DISK,TRUE);
    /* Use myif as /tgtsvr */
    dosFsMkfs ("/tgtsvr",MSDOS2_FILE_SYSTEM);
    ioMkfs("/ram", "DOS", "ram disk");

    iosDevDelete(devName);
    iosDevRename(mntpnt, devName);   
}

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