Manual Pages  — LE

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

if_le_load="YES"

For ISA non-PnP adapters, the port address as well as the IRQ and the DRQ numbers have to be specified in /boot/device.hints: hint.le.0.at="isa" hint.le.0.port="0x280" hint.le.0.irq="10" hint.le.0.drq="0"

The le driver also supports Ethernet adapters based on the AMD Am79C900 Integrated Local Area Communications Controller ( ILACC) as well as the Am79C9xx PCnet family of chips, which are single-chip implementations of a LANCE chip and a DMA engine. This includes a superset of the PCI bus Ethernet chips supported by the pcn(4) driver. The le driver treats all of these PCI bus Ethernet chips as an AMD Am79C970 PCnet-PCI and does not support the additional features like the MII bus and burst mode of AMD Am79C971 PCnet-FAST and greater chips. Thus the pcn(4) driver should be preferred for the latter.

Generally, the le driver aims at supporting as many different chips on as many different platforms as possible, partially at the cost of the best performance with some of these.

The le driver supports reception and transmission of extended frames for vlan(4). Selective reception of multicast Ethernet frames is provided by a 64-bit mask; multicast destination addresses are hashed to a bit entry using the Ethernet CRC function.

The le driver does not support the selection of media types and options via ifconfig(8) with ISA bus Ethernet adapters.

The le driver supports the selection of the following media types via ifconfig(8) with PCI bus Ethernet adapters:

autoselect	Enable autoselection of the media type.
10baseT/UTP
	Select UTP media.
10base5/AUI
	Select AUI/BNC media.

The following media option is supported with these media types:

full-duplex
	Select full duplex operation.

Note that unlike the pcn(4) driver, the le driver does not support selecting 100Mbps (Fast Ethernet) media types.

When using autoselection, a default media type is selected for use by examining all ports for carrier. The first media type with which a carrier is detected will be selected. Additionally, if carrier is dropped on a port, the driver will switch between the possible ports until one with carrier is found.

The le driver also supports the following Sun SBus Ethernet add-on adapters:

• SCSI HBA and Buffered Ethernet (SBE/S, P/N 501-1869)
• Fast SCSI and Buffered Ethernet (FSBE/S, P/N 501-2015 and 501-2981)

The le driver does not support the selection of media types and options via ifconfig(8) with SBus Ethernet add-on adapters.

For further information on configuring media types and options, see ifconfig(8).