if_re(4) manual page

To compile this driver into the kernel, place the following lines in your kernel configuration file: device miibus device re

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

if_re_load="YES"

The re driver provides support for various NICs based on the RealTek RTL8139C+, RTL8169, RTL816xS, RTL811xS, RTL8168, RTL810xE and RTL8111 PCI and PCIe Ethernet controllers.

NICs based on the 8139C+ and 810xE are capable of 10 and 100Mbps speeds over CAT5 cable. NICs based on the 8169, 816xS, 811xS, 8168 and 8111 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. The 8169 is a 10/100/1000 MAC only, requiring a GMII or TBI external PHY. The 816xS, 811xS, 8168 and 8111 are single-chip devices containing both a 10/100/1000 MAC and 10/100/1000 copper PHY. 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. The MTU is limited to 7422, since the chip cannot transmit larger frames. 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).

Tunables can be set at the loader(8) prompt before booting the kernel or stored in loader.conf(5).

hw.re.intr_filter
	This tunable makes driver use interrupt filter handler on controllers that support MSI/MSI-X capability. If MSI/MSI-X is disabled by administrator this tunable has no effect and driver will use interrupt filter handler. The default value is 0 to use interrupt thread handler.
hw.re.msi_disable
	This tunable disables MSI support on the Ethernet hardware. The default value is 0.
hw.re.msix_disable
	This tunable disables MSI-X support on the Ethernet hardware. The default value is 0.
hw.re.prefer_iomap
	This tunable controls which register mapping should be used on the specified device. A non-zero value enables I/O space register mapping. The default value is 0 to use memory space register mapping.

The following variables are available as both sysctl(8) variables and loader(8) tunables:

dev.re.%d.int_rx_mod
	Maximum amount of time to delay receive interrupt processing in units of 1us. The accepted range is 0 to 65, the default is 65(65us). Value 0 completely disables the interrupt moderation. The interface need to be brought down and up again before a change takes effect.

altq(4), arp(4), miibus(4), netintro(4), ng_ether(4), polling(4), rgephy(4), vlan(4), ifconfig(8) http://www.realtek.com.tw/

RealTek Semiconductor RTL8139C+, RTL8169, RTL8169S and RTL8110S datasheets,

re%d: couldn't map memory	A fatal initialization error has occurred.
re%d: couldn't map ports	A fatal initialization error has occurred.
re%d: couldn't map interrupt	A fatal initialization error has occurred.
re%d: no memory for softc struct!	The driver failed to allocate memory for per-device instance information during initialization.
re%d: failed to enable memory mapping!	The driver failed to initialize PCI shared memory mapping. This might happen if the card is not in a bus-master slot.
re%d: no memory for jumbo buffers!	The driver failed to allocate memory for jumbo frames during initialization.
re%d: watchdog timeout	The device has stopped responding to the network, or there is a problem with the network connection (cable).

Manual Pages — RE

NAME

CONTENTS

SYNOPSIS

DESCRIPTION

HARDWARE

LOADER TUNABLES

SYSCTL VARIABLES

DIAGNOSTICS

SEE ALSO

HISTORY

AUTHORS

BUGS

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.

full-duplex
	Force full duplex operation.
half-duplex
	Force half duplex operation.