基于SAIL-IMX6Q网卡是百兆还是千兆

有时候我们想查看一下网卡是百兆还是千兆，下面是一点方法可以有效的帮助大家。

使用ethtool命令

ethtool是Linux下用于查询及设置网卡参数的命令

输入指令如下所示：

root@imx6qdlsolo:~# ethtool eth0

Settings for eth0:

Supported ports: [ TP MII ]

Supported link modes: 10baseT/Half 10baseT/Full

100baseT/Half

100baseT/Full

1000baseT/Full

Supported pause frame use: Symmetric

Supports auto-negotiation: Yes

Advertised link modes: 10baseT/Half 10baseT/Full

100baseT/Half

100baseT/Full

1000baseT/Full

Advertised pause frame use: Symmetric

Advertised auto-negotiation: Yes

Link partner advertised link modes: 10baseT/Half 10baseT/Full

100baseT/Half 100baseT/Full

1000baseT/Full

Link partner advertised pause frame use: Symmetric

Link partner advertised auto-negotiation:

Yes

Speed: 1000Mb/s

Duplex: Full

Port: MII

PHYAD: 1

Transceiver: external

Auto-negotiation: on

Supports Wake-on: g

Wake-on: d

Link detected: yes

root@imx6qdlsolo:~#

详细参数参考：（//后面是注释，是原文的译文）

ethtool ethX /

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]\ //设置网口速率10/100/1000M

[duplex half|full]\ //设置网口半/全双工

[autoneg on|off]\ //设置网口是否自协商

[port tp|aui|bnc|mii]\ //设置网口类型