path: root/share/man/man4/bge.4

.\" $OpenBSD: bge.4,v 1.34 2007/05/31 19:19:49 jmc Exp $
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.\" Copyright (c) 1997, 1998, 1999, 2000, 2001
.\"	Bill Paul <wpaul@windriver.com>. All rights reserved.
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.Dd $Mdocdate: May 31 2007 $
.Dt BGE 4
.Os
.Sh NAME
.Nm bge
.Nd Broadcom BCM57xx/BCM590x 10/100/Gigabit Ethernet device
.Sh SYNOPSIS
.Cd "bge* at pci?"
.Cd "brgphy* at mii?"
.Sh DESCRIPTION
The
.Nm
driver provides support for various NICs based on the Broadcom BCM570x,
571x, 572x, 575x and 578x families of Gigabit Ethernet controller
chips and the 590x family of Fast Ethernet controller chips, including
the following:
.Pp
.Bl -bullet -compact
.It
3Com 3c996-T (10/100/1000baseT)
.It
3Com 3c996-SX (1000baseSX)
.It
3Com 3c996B-T (10/100/1000baseT)
.It
Dell PowerEdge 1750 integrated BCM5704C NIC (10/100/1000baseT)
.It
Dell PowerEdge 2550 integrated BCM5700 NIC (10/100/1000baseT)
.It
Dell PowerEdge 2650 integrated BCM5703 NIC (10/100/1000baseT)
.It
HP ProLiant NC320T PCI-E Gigabit NIC (10/100/1000baseT)
.It
HP ProLiant NC370F PCI-X Gigabit NIC (1000baseSX)
.It
HP ProLiant NC370T PCI-X Gigabit NIC (10/100/1000baseT)
.It
HP ProLiant NC1020 PCI Gigabit NIC (10/100/1000baseT)
.It
HP ProLiant NC6770 PCI-X Gigabit NIC (1000baseSX)
.It
HP ProLiant NC7760 embedded PCI Gigabit NIC (10/100/1000baseT)
.It
HP ProLiant NC7770 PCI-X Gigabit NIC (10/100/1000baseT)
.It
HP ProLiant NC7771 PCI-X Gigabit NIC (10/100/1000baseT)
.It
HP ProLiant NC7780 embedded PCI-X Gigabit NIC (10/100/1000baseT)
.It
HP ProLiant NC7781 embedded PCI-X Gigabit NIC (10/100/1000baseT)
.It
HP ProLiant NC7782 embedded PCI-X Gigabit NIC (10/100/1000baseT)
.It
IBM ThinkPad T43/T43p integrated BCM5751M NIC (10/100/1000baseT)
.It
IBM xSeries 235 integrated BCM5703X NIC (10/100/1000baseT)
.It
IBM xSeries 305 integrated BCM5703X NIC (10/100/1000baseT)
.It
Netgear GA302T (10/100/1000baseT)
.It
SysKonnect SK-9D21 (10/100/1000baseT)
.It
SysKonnect SK-9D41 (1000baseSX)
.El
.Pp
All of these NICs are capable of 10, 100 speeds over CAT5 copper cable;
the Gigabit controller chips also support 1000Mbps, except for the
SysKonnect SK-9D41 which supports only 1000Mbps over multimode fiber.
It has two R4000 CPU cores and is PCI v2.2 and PCI-X v1.0 compliant.
It supports
.\"IP, TCP
.\"and UDP checksum offload for both receive and transmit,
VLAN tag insertion as well as a 256-bit multicast hash filter.
Additional features may be provided via value-add firmware updates.
The BCM57xx supports TBI (ten bit interface) and GMII transceivers, which
means it can be used with either copper or 1000baseX fiber applications.
Note however the device only supports a single speed in TBI mode.
.Pp
Most BCM5700-based cards also use the Broadcom BCM5401 or BCM5411 10/100/1000
copper Gigabit transceivers,
which support autonegotiation of 10, 100 and 1000Mbps modes in
full or half duplex.
.Pp
The BCM5700, BCM5701, BCM5703 and BCM5704 are capable of supporting Jumbo frames,
which can be configured via the interface MTU setting.
Selecting an MTU larger than 1500 bytes with the
.Xr ifconfig 8
utility configures the adapter to receive and transmit Jumbo frames.
Using Jumbo frames can greatly improve performance for certain tasks,
such as file transfers and data streaming.
.Pp
The
.Nm
driver supports the following media types:
.Bl -tag -width 1000baseSX
.It Cm autoselect
Enable autoselection of the media type and options.
The user can manually override
the autoselected mode by adding media options to the appropriate
.Xr hostname.if 5
file.
.It Cm 10baseT
Set 10Mbps operation.
The
.Xr ifconfig 8
.Ic mediaopt
option can also be used to select either
.Cm full-duplex
or
.Cm half-duplex
modes.
.It Cm 100baseTX
Set 100Mbps (Fast Ethernet) operation.
The
.Xr ifconfig 8
.Ic mediaopt
option can also be used to select either
.Cm full-duplex
or
.Cm half-duplex
modes.
.It Cm 1000baseT
Set 1000baseT operation over twisted pair.
Only
.Cm full-duplex
mode is supported.
.It Cm 1000baseSX
Set 1000Mbps (Gigabit Ethernet) operation.
Both
.Cm full-duplex
and
.Cm half-duplex
modes are supported.
.El
.Pp
The
.Nm
driver supports the following media options:
.Bl -tag -width full-duplex
.It Cm full-duplex
Force full duplex operation.
.It Cm half-duplex
Force half duplex operation.
.El
.Pp
The
.Nm
driver also supports one special link option for 1000baseT cards:
.Bl -tag -width link0
.It Cm link0
With 1000baseT cards, establishing a link between two ports requires
that one port be configured as a master and the other a slave.
With autonegotiation,
the master/slave settings will be chosen automatically.
However when manually selecting the link state, it is necessary to
force one side of the link to be a master and the other a slave.
The
.Nm
driver configures the ports as slaves by default.
Setting the
.Cm link0
flag with
.Xr ifconfig 8
will set a port as a master instead.
.El
.Pp
For more information on configuring this device, see
.Xr ifconfig 8 .
.Sh DIAGNOSTICS
.Bl -diag
.It "bge%d: can't find mem space"
A fatal initialization error has occurred.
.It "bge%d: couldn't map interrupt"
A fatal initialization error has occurred.
.It "bge%d: no memory for jumbo buffer queue!"
The driver failed to allocate memory for jumbo frames during
initialization.
.It "bge%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 arp 4 ,
.Xr brgphy 4 ,
.Xr ifmedia 4 ,
.Xr intro 4 ,
.Xr netintro 4 ,
.Xr pci 4 ,
.Xr hostname.if 5 ,
.Xr ifconfig 8
.Sh HISTORY
The
.Nm
device driver first appeared in
.Ox 3.0 .
.Sh AUTHORS
The
.Nm
driver was written by
.An Bill Paul Aq wpaul@windriver.com .