SF(4) | Device Drivers 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:

- 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, https://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.

February 18, 2022 | Debian