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SF(4)			     Kernel Interfaces Manual			   SF(4)

NAME
     sf -- Adaptec AIC-6915 "Starfire" PCI Fast Ethernet adapter driver

SYNOPSIS
     device miibus
     device sf

DESCRIPTION
     The  sf driver provides support for Adaptec Duralink Fast Ethernet adapters
     based on the Adaptec AIC-6915 "Starfire" chipset.

     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-compli-
     ant 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 /etc/rc.conf file.

     10baseT/UTP	   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).

HARDWARE
     Adapters supported by the sf driver include:

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

DIAGNOSTICS
     sf%d: couldn't map memory	A fatal initialization error has occurred.  This
     may happen if the PCI BIOS not configured the device, which may be  because
     the  BIOS	has been configured for a "Plug and Play" operating system.  The
     "Plug and Play OS" setting in the BIOS should be set to "no"  or  "off"  in
     order for PCI devices to work properly with FreeBSD.

     sf%d:  couldn't map ports	A fatal initialization error has occurred.  This
     may happen if the PCI BIOS not configured the device, which may be  because
     the  BIOS	has been configured for a "Plug and Play" operating system.  The
     "Plug and Play OS" setting in the BIOS should be set to "no"  or  "off"  in
     order for PCI devices to work properly with FreeBSD.

     sf%d: couldn't map interrupt  A fatal initialization error has occurred.

     sf%d: no memory for softc struct!	The driver failed to allocate memory for
     per-device instance information during initialization.

     sf%d: failed to enable I/O ports/memory mapping!  The driver failed to ini-
     tialize  PCI  I/O	port  or shared memory access.	This might happen if the
     card is not in a bus-master slot.

     sf%d: watchdog timeout  The device has stopped responding to  the	network,
     or there is a problem with the network connection (cable).

SEE ALSO
     arp(4), miibus(4), netintro(4), ng_ether(4), ifconfig(8)

     The      Adaptec	  AIC-6915     Programmer's	Manual,     http://down-
     load.adaptec.com/pdfs/user_guides/aic6915_pg.pdf.

HISTORY
     The sf device driver first appeared in FreeBSD 3.0.

AUTHORS
     The sf driver was written by Bill Paul <wpaul@ctr.columbia.edu>.

FreeBSD 5.3			 August 24, 2004			   SF(4)

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