The
re driver provides support for various NICs based on the RealTek RTL8139C+, RTL8169, RTL8169S, and RTL8110S PCI/Cardbus Ethernet controllers, including the following:
•
Alloy Computer Products EtherGOLD 1439E 10/100 (8139C+)
•
Compaq Evo N1015v Integrated Ethernet (8139C+)
•
Gigabyte 7N400 Pro2 Integrated Gigabit Ethernet (8110S)
•
PLANEX COMMUNICATIONS Inc. GN-1200TC (8169S)
•
Xterasys XN-152 10/100/1000 NIC (8169)
•
Corega CG-LAPCIGT Gigabit Ethernet (8169S)
•
D-Link DGE-528T Gigabit Ethernet (8169S)
•
US Robotics (3Com) USR997902 Gigabit Ethernet (8169S)
•
Linksys EG1032 rev. 3 Gigabit Ethernet (8169S)
NICs based on the 8139C+ are capable of 10 and 100Mbps speeds over CAT5 cable. NICs based on the 8169, 8169S, and 8110S are capable of 10, 100, and 1000Mbps operation.
All NICs supported by the
re driver have TCP/IP checksum offload and hardware VLAN tagging/insertion features, and use a descriptor-based DMA mechanism. They are also capable of TCP large send (TCP segmentation offload).
The 8139C+ is a single-chip solution combining both a 10/100 MAC and PHY, and its PHY is supported by
rlphy(4). The 8169 is a 10/100/1000 MAC only, requiring a GMII or TBI external PHY and some 8169 based boards have Marvell 88E1000 PHY supported by
makphy(4). The 8169S and 8110S are single-chip devices containing both a 10/100/1000 MAC and 10/100/1000 copper PHY, which is supported by
rgephy(4). Standalone 10/100/1000 cards are available in both 32-bit PCI and 64-bit PCI models. The 8110S is designed for embedded LAN-on-motherboard applications.
The 8169, 8169S, and 8110S also support jumbo frames, which can be configured via the interface MTU setting. Selecting an MTU larger than 1500 bytes with the
ifconfig(8) utility configures the adapter to receive and transmit jumbo frames.
The
re driver supports the following media types:
autoselect
Enable autoselection of the media type and options. The user can manually override the autoselected mode by adding media options to
rc.conf(5).
10baseT/UTP
Set 10Mbps operation. The
ifconfig(8) mediaopt option can also be used to select either
full-duplex or
half-duplex modes.
100baseTX
Set 100Mbps (Fast Ethernet) operation. The
ifconfig(8) mediaopt option can also be used to select either
full-duplex or
half-duplex modes.
1000baseTX
Set 1000baseTX operation over twisted pair. The RealTek GigE chips support 1000Mbps in full-duplex mode only.
The
re driver supports the following media options:
full-duplex
Force full duplex operation.
half-duplex
Force half duplex operation.
For more information on configuring this device, see
ifconfig(8).