NAME
sf —
Adaptec AIC-6915 Starfire PCI 10/100
Ethernet device
SYNOPSIS
sf* at pci?
sqphy* at mii?
DESCRIPTION
The sf driver provides support for Adaptec
Duralink Fast Ethernet adapters based on the Adaptec AIC-6915
"Starfire" chipset. This includes the following:
- ANA-62011 64-bit single port 10/100baseTX
- ANA-62022 64-bit dual port 10/100baseTX
- ANA-62044 64-bit quad port 10/100baseTX
- ANA-69011 32-bit single port 10/100baseTX
- ANA-62020 64-bit single port 100baseFX
The AIC-6915 is a bus master controller with an MII interface. It supports high and low priority transmit and receive queues, TCP/IP checksum offload, multiple DMA descriptor formats and both polling and producer/consumer DMA models. The AIC-6915 receive filtering options include a 16 entry perfect filter, a 512-bit hash table for multicast addresses, a 512-bit hash table for priority address matching and VLAN filtering. An external MII-compliant transceiver is required for media interfacing.
Multiport adapters consist of several AIC-6915 controllers
connected via a PCI to PCI bridge. Each controller is treated as a separate
interface by the sf driver.
The sf 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 the hostname.if(5) file.
- 10baseT
- Set 10Mbps operation. The mediaopt option can also be used to select either full-duplex or half-duplex modes.
- 100baseTX
- Set 100Mbps (Fast Ethernet) operation. The mediaopt option can also be used to select either full-duplex or half-duplex modes.
The sf 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).
SEE ALSO
arp(4), ifmedia(4), intro(4), netintro(4), pci(4), sqphy(4), hostname.if(5), ifconfig(8)
The Adaptec AIC-6915 Programmer's Manual, http://download.adaptec.com/pdfs/user_guides/aic6915_pg.pdf.
HISTORY
The sf device driver first appeared in
OpenBSD 2.7.
AUTHORS
The sf driver was written by
Jason R. Thorpe
<thorpej@NetBSD.org>
and ported to OpenBSD by Martin
Reindl
<martin@openbsd.org>.
BUGS
The sf driver does not support the
IPv4/TCP/UDP checksum function of the AIC-6915.
The sf driver does not support the VLAN
function of the AIC-6915.