Ubuntu Manpage: sf — Adaptec AIC-6915 "Starfire" PCI Fast Ethernet adapter driver

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NAME

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

SYNOPSIS

       To compile this driver into the kernel, place the following lines in your kernel configuration file:

             device miibus
             device sf

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

             if_sf_load="YES"

DEPRECATION NOTICE

       The      sf     driver     is     not     present     in     FreeBSD     13.0     and     later.      See
       https://github.com/freebsd/fcp/blob/master/fcp-0101.md for more information.

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-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 /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

SYSCTL VARIABLES

       The following variables are available as both sysctl(8) variables and loader(8) tunables:

       dev.sf.%d.int_mod
               Maximum amount of time to delay interrupt processing in units of 102.4us.  The accepted range  is
               0 to 31, the default value is 1 (102.4us).  Value 0 completely disables the interrupt moderation.
               The interface does not need to be brought down and up again before a change takes effect.

       dev.sf.%d.stats
               Display lots of useful MAC counters maintained in the driver.

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 initialize 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).

HISTORY

       The sf device driver first appeared in FreeBSD 3.0.

AUTHORS

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

Debian                                          October 24, 2018                                           SF(4)