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SF(4)                    BSD Kernel Interfaces Manual                    SF(4)

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:

           o   ANA-62011 64-bit single port 10/100baseTX
           o   ANA-62022 64-bit dual port 10/100baseTX
           o   ANA-62044 64-bit quad port 10/100baseTX
           o   ANA-69011 32-bit single port 10/100baseTX
           o   ANA-62020 64-bit single port 100baseFX

     The AIC-6915 is a bus master controller with an MII interface.  It sup-
     ports high and low priority transmit and receive queues, TCP/IP checksum
     offload, multiple DMA descriptor formats and both polling and pro-
     ducer/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.

BSD                             March 28, 2017                             BSD