ethtool的源码，该工具是用于查询及设置网卡参数的命令ethtool ethx //查询ethx网口基本设置，其中 x 是对应网卡的编号，如eth0、eth1等等

ethtool –h //显示ethtool的命令帮助(help)

ethtool –i ethX //查询ethX网口的相关信息

ethtool –d ethX //查询ethX网口注册性信息

ethtool –r ethX //重置ethX网口到自适应模式

ethtool –S ethX //查询ethX网口收发包统计

ethtool –s ethX [speed 10|100|1000] [duplex half|full] [autoneg on|off] //设置网口速率10/100/1000M、设置网口半/全双工、设置网口是否自协商-the ethtool source code, the tool is used to query and set the network card parameters command ethtool ethx// basic settings query ethx network port, where x is the number of the corresponding network card, such as eth0, eth1 ethtool-h// display ethtool command help (help) ethtool-i ethX// query ethX network interface information ethtool-d ethX// query ethX network port registration information ethtool-r ethX// reset the ethX network Koudao adaptive mode ethtool-S ethX// query ethX network interface to send and receive packets statistics ethtool-s ethX [speed 10 | 100 | 1000] [duplex half | full] [autoneg on | off]// set rate network port 10/100/1000M, set the network port half/full autonegotiation duplex, set the network port