swq1982的专栏

今天调试BIOS会发生注册ethernet_register_protocol函数里发生注册失败的问题。内核代码：/* netman_start_monitor_device - start the monitor device and all protocol handlers for it */int netman_start_monitor_device(void){

(1) 配置文件server@ubuntu:~$ cat  /etc/xinetd.d/tftp# default: off# description: The tftp server serves files using the trivial file transfer \# protocol.  The tftp protocol is often used to boo

1. 要实现网络唤醒，网卡要支持WOL (Wake On LAN)技术。网络唤醒帧Magic Packet由AMD公司拥有注册的专利技术，得到很多网卡制造商的支持。Magic Paket的数据包里包含有6字节的'F'和连续重复16次的MAC地址；利用tcpdump工具可以抓下的数据包演示如下(1) 发送魔包工具tftpboot@ubuntu-desktop:~$ sudo wakeonla

(1) alloc_skb函数static inline struct sk_buff *alloc_skb(unsigned intsize,gfp_t priority){                              return__alloc_skb(size, priority, 0, -1);} __alloc_skb函数定义于文件，它分配sk_bu

GMAC: swgmac_linux_xmit_frames No More Free Tx DescriptorsGMAC: swgmac_linux_xmit_frames No More Free Tx DescriptorsGMAC: swgmac_linux_xmit_frames No More Free Tx DescriptorsGMAC: swgmac_linux_xmit