How to check the network driver on the linux machine?

Ans :

=======================

#dmesg | grep eth0

o/p :

[root@kmaiti net]# dmesg | grep eth0
0000:00:19.0: eth0: (PCI Express:2.5GB/s:Width x1) f0:de:f1:27:4d:ad
0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection
0000:00:19.0: eth0: MAC: 9, PHY: 10, PBA No: a002ff-0ff
ADDRCONF(NETDEV_UP): eth0: link is not ready
e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None
0000:00:19.0: eth0: 10/100 speed: disabling TSO
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
eth0: no IPv6 routers present
e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None
0000:00:19.0: eth0: 10/100 speed: disabling TSO
e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None
0000:00:19.0: eth0: 10/100 speed: disabling TSO
e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None
0000:00:19.0: eth0: 10/100 speed: disabling TSO
[root@kmaiti net]

Here name of the network driver is : e1000e

Information about it :

#modinfo driver_name

op :

[root@kmaiti net]# modinfo e1000e
filename: /lib/modules/2.6.32-71.7.1.el6.x86_64/kernel/drivers/net/e1000e/e1000e.ko
version: 1.2.7-k2
license: GPL
description: Intel(R) PRO/1000 Network Driver
author: Intel Corporation,
srcversion: 93CB73D3995B501872B2982
. . . . . .. . . . . . .. . . .. .

===========================
PS :
List of network drivers on my machine :

--------
[root@kmaiti net]# pwd
/usr/src/kernels/2.6.32-71.7.1.el6.x86_64/drivers/net
[root@kmaiti net]# ls
appletalk atl1e can cxgb4 enic igb ixgbe Makefile pcmcia skfp usb wimax
arcnet atlx chelsio e1000 fs_enet igbvf ixgbevf mlx4 phy stmmac vmxnet3 wireless
arm benet cris e1000e hamradio irda ixp2000 myri10ge qlge tokenring vxge
atl1c bonding cxgb3 ehea ibm_newemac ixgb Kconfig netxen sfc tulip wan
[root@kmaiti net]#
--------

Try :)