freebsd-nq/share/man/man4/sf.4

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.\" Copyright (c) 1997, 1998, 1999
.\" Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
.\"
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1999-08-28 00:22:10 +00:00
.\" $FreeBSD$
.\"
.Dd January 21, 2008
.Dt SF 4
.Os
.Sh NAME
.Nm sf
.Nd "Adaptec AIC-6915"
2001-04-18 15:54:10 +00:00
.Qq Starfire
PCI Fast Ethernet adapter driver
.Sh SYNOPSIS
To compile this driver into the kernel,
place the following lines in your
kernel configuration file:
.Bd -ragged -offset indent
.Cd "device miibus"
.Cd "device sf"
.Ed
.Pp
Alternatively, to load the driver as a
module at boot time, place the following line in
.Xr loader.conf 5 :
.Bd -literal -offset indent
if_sf_load="YES"
.Ed
.Sh DESCRIPTION
The
.Nm
driver provides support for Adaptec Duralink Fast Ethernet adapters
based on the Adaptec AIC-6915 "Starfire" chipset.
.Pp
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.
.Pp
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
.Nm
driver.
.Pp
The
.Nm
driver supports the following media types:
.Bl -tag -width xxxxxxxxxxxxxxxxxxxx
.It autoselect
Enable autoselection of the media type and options.
The user can manually override
the autoselected mode by adding media options to the
.Pa /etc/rc.conf
file.
.It 10baseT/UTP
Set 10Mbps operation.
The
.Ar mediaopt
option can also be used to select either
.Ar full-duplex
or
.Ar half-duplex
modes.
.It 100baseTX
Set 100Mbps (Fast Ethernet) operation.
The
.Ar mediaopt
option can also be used to select either
.Ar full-duplex
or
.Ar half-duplex
modes.
.El
.Pp
The
.Nm
driver supports the following media options:
.Bl -tag -width xxxxxxxxxxxxxxxxxxxx
.It full-duplex
Force full duplex operation
.It half-duplex
Force half duplex operation.
.El
.Pp
For more information on configuring this device, see
.Xr ifconfig 8 .
.Sh HARDWARE
Adapters supported by the
.Nm
driver include:
.Pp
.Bl -bullet -compact
.It
ANA-62011 64-bit single port 10/100baseTX adapter
.It
ANA-62022 64-bit dual port 10/100baseTX adapter
.It
ANA-62044 64-bit quad port 10/100baseTX adapter
.It
ANA-69011 32-bit single port 10/100baseTX adapter
.It
ANA-62020 64-bit single port 100baseFX adapter
.El
.Sh SYSCTL VARIABLES
The following variables are available as both
.Xr sysctl 8
variables and
.Xr loader 8
tunables:
.Bl -tag -width indent
.It Va 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.
.It Va dev.sf.%d.stats
Display lots of useful MAC counters maintained in the driver.
.El
.Sh DIAGNOSTICS
.Bl -diag
.It "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
2000-11-14 11:20:58 +00:00
"off" in order for PCI devices to work properly with
.Fx .
.It "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
2000-11-14 11:20:58 +00:00
"off" in order for PCI devices to work properly with
.Fx .
.It "sf%d: couldn't map interrupt"
A fatal initialization error has occurred.
.It "sf%d: no memory for softc struct!"
The driver failed to allocate memory for per-device instance information
during initialization.
.It "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.
.It "sf%d: watchdog timeout"
The device has stopped responding to the network, or there is a problem with
the network connection (cable).
.El
.Sh SEE ALSO
.Xr altq 4 ,
.Xr arp 4 ,
2003-02-15 17:12:53 +00:00
.Xr miibus 4 ,
.Xr netintro 4 ,
.Xr ng_ether 4 ,
.Xr polling 4 ,
.Xr vlan 4 ,
.Xr ifconfig 8
.Rs
.%T The Adaptec AIC-6915 Programmer's Manual
2010-01-15 16:01:22 +00:00
.%U http://download.adaptec.com/pdfs/user_guides/aic6915_pg.pdf
.Re
.Sh HISTORY
The
.Nm
device driver first appeared in
.Fx 3.0 .
.Sh AUTHORS
The
.Nm
driver was written by
.An Bill Paul Aq wpaul@ctr.columbia.edu .