How can I install the driver of TX201 on Linux？

This is the Linux device driver released for RealTek RTL8125 2.5Gigabit Ethernet controllers with PCI-Express interface.

- Kernel source tree (supported Linux kernel 2.6.x and 2.4.x)
- For linux kernel 2.4.x, this driver supports 2.4.20 and latter.
- Compiler/binutils for kernel compilation

<Quick install with proper kernel settings>
Unpack the tarball :
# tar vjxf r8125-9.aaa.bb.tar.bz2

Change to the directory:
# cd r8125-9.aaa.bb

If you are running the target kernel, then you should be able to do :

# ./autorun.sh (as root or with sudo)

You can check whether the driver is loaded by using following commands.

# lsmod | grep r8125
# ifconfig -a

If there is a device name, ethX, shown on the monitor, the linux
driver is loaded. Then, you can use the following command to activate
the ethX.

# ifconfig ethX up

,where X=0,1,2,...

<Set the network related information>
1. Set manually
a. Set the IP address of your machine.

# ifconfig ethX "the IP address of your machine"

b. Set the IP address of DNS.

Insert the following configuration in /etc/resolv.conf.

nameserver "the IP address of DNS"

c. Set the IP address of gateway.

# route add default gw "the IP address of gateway"

2. Set by doing configurations in /etc/sysconfig/network-scripts
/ifcfg-ethX for Redhat and Fedora, or /etc/sysconfig/network
/ifcfg-ethX for SuSE. There are two examples to set network
configurations.

a. Fixed IP address:
DEVICE=eth0
BOOTPROTO=static
ONBOOT=yes
TYPE=ethernet
NETMASK=255.255.255.0
IPADDR=192.168.1.1
GATEWAY=192.168.1.254
BROADCAST=192.168.1.255

b. DHCP:
DEVICE=eth0
BOOTPROTO=dhcp
ONBOOT=yes

<Modify the MAC address>
There are two ways to modify the MAC address of the NIC.
1. Use ifconfig:

# ifconfig ethX hw ether YY:YY:YY:YY:YY:YY

,where X is the device number assigned by Linux kernel, and
YY:YY:YY:YY:YY:YY is the MAC address assigned by the user.

2. Use ip:

# ip link set ethX address YY:YY:YY:YY:YY:YY

,where X is the device number assigned by Linux kernel, and
YY:YY:YY:YY:YY:YY is the MAC address assigned by the user.

1. Force the link status when insert the driver.

If the user is in the path ~/r8125, the link status can be forced
to one of the 5 modes as following command.

# insmod ./src/r8125.ko speed=SPEED_MODE duplex=DUPLEX_MODE autoneg=NWAY_OPTION

,where
SPEED_MODE = 1000 for 1000Mbps
= 100 for 100Mbps
= 10 for 10Mbps
DUPLEX_MODE = 0 for half-duplex
= 1 for full-duplex
NWAY_OPTION = 0 for auto-negotiation off (true force)
= 1 for auto-negotiation on (nway force)
For example:

# insmod ./src/r8125.ko speed=100 duplex=0 autoneg=1

will force PHY to operate in 100Mpbs Half-duplex(nway force).

2. Force the link status by using ethtool.
a. Insert the driver first.
b. Make sure that ethtool exists in /sbin.
c. Force the link status as the following command.

2.5G before kernel v4.10
# ethtool -s eth0 autoneg on advertise 0x802f

2.5G for kernel v4.10 and later
# ethtool -s eth0 autoneg on advertise 0x80000000002f

# ethtool -s eth0 autoneg on advertise 0x002f (1G)
# ethtool -s eth0 autoneg on advertise 0x000f (100M full)
# ethtool -s eth0 autoneg on advertise 0x0003 (10M full)

<Jumbo Frame>
Transmitting Jumbo Frames, whose packet size is bigger than 1500 bytes, please change mtu by the following command.

# ifconfig ethX mtu MTU

, where X=0,1,2,..., and MTU is configured by user.

RTL8125 supports Jumbo Frame size up to 9 kBytes.

<EEE>
Get/Set device EEE status

Get EEE device status
# ethtool --show-eee enp1s0

Set EEE device status
# ethtool --set-eee enp1s0 eee on tx-lpi on tx-timer 1546 advertise 0x0008 (100M full)
# ethtool --set-eee enp1s0 eee on tx-lpi on tx-timer 1546 advertise 0x0020 (1G)
# ethtool --set-eee enp1s0 eee on tx-lpi on tx-timer 1546 advertise 0x8000 (2.5G)

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