bge(4)
NAME
- bge - Broadcom BCM570x/5714/5721/5750/5751/5752/5789 PCI Gi
- gabit Ethernet
adapter driver
SYNOPSIS
To compile this driver into the kernel, place the following
lines in your
kernel configuration file:
device miibus
device bge
Alternatively, to load the driver as a module at boot time,
place the
following line in loader.conf(5):
if_bge_load="YES"
DESCRIPTION
- The bge driver provides support for various NICs based on
- the Broadcom
BCM570x, 5714, 5721, 5750, 5751, 5752 and 5789 families of - Gigabit Ethernet controller chips.
- All of these NICs are capable of 10, 100 and 1000Mbps speeds
- over CAT5
copper cable, except for the SysKonnect SK-9D41 which sup - ports only
1000Mbps over multimode fiber. The BCM570x builds upon the - technology of
the Alteon Tigon II. It has two R4000 CPU cores and is PCI - v2.2 and PCIX v1.0 compliant. It supports IP, TCP and UDP checksum of
- fload for both
receive and transmit, multiple RX and TX DMA rings for QoS - applications,
rules-based receive filtering, and VLAN tag stripping/inser - tion as well
as a 256-bit multicast hash filter. Additional features may - be provided
via value-add firmware updates. The BCM570x supports TBI - (ten bit interface) and GMII transceivers, which means it can be used with
- either copper or 1000baseX fiber applications. Note however the de
- vice only supports a single speed in TBI mode.
- Most BCM5700-based cards also use the Broadcom BCM5401 or
- BCM5411
10/100/1000 copper gigabit transceivers, which support au - tonegotiation of
10, 100 and 1000Mbps modes in full or half duplex. - The BCM570x also supports jumbo frames, which can be config
- ured via the
interface MTU setting. Selecting an MTU larger than 1500 - bytes with the
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. - The bge 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 rc.conf(5). - 10baseT/UTP Set 10Mbps operation. The ifconfig(8)
- mediaopt option
- can also be used to select either
- full-duplex or
half-duplex modes. - 100baseTX Set 100Mbps (Fast Ethernet) operation. The
- ifconfig(8)
- mediaopt option can also be used to select
- either
full-duplex or half-duplex modes. - 1000baseTX Set 1000baseTX operation over twisted pair.
- Only
- full-duplex mode is supported.
- 1000baseSX Set 1000Mbps (Gigabit Ethernet) operation.
- Both
- full-duplex and half-duplex modes are sup
- ported.
- The bge driver supports the following media options:
- full-duplex Force full duplex operation.
- half-duplex Force half duplex operation.
- The bge driver also supports one special link option for
- 1000baseTX
cards: - link0 With 1000baseTX cards, establishing a link be
- tween 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 bge driv - er configures
the ports as slaves by default. Setting the - link0 flag with
ifconfig(8) will set a port as a master instead. - For more information on configuring this device, see ifcon
- fig(8).
HARDWARE
- The bge driver provides support for various NICs based on
- the Broadcom
BCM570x family of Gigabit Ethernet controller chips, includ - ing the following:
- +o 3Com 3c996-T (10/100/1000baseTX)
+o Dell PowerEdge 1750 integrated BCM5704C NIC - (10/100/1000baseTX)
+o Dell PowerEdge 2550 integrated BCM5700 NIC - (10/100/1000baseTX)
+o Dell PowerEdge 2650 integrated BCM5703 NIC - (10/100/1000baseTX)
+o IBM x235 server integrated BCM5703x NIC - (10/100/1000baseTX)
+o HP Compaq dc7600 integrated BCM5752 NIC - (10/100/1000baseTX)
+o HP ProLiant NC7760 embedded Gigabit NIC - (10/100/1000baseTX)
+o HP ProLiant NC7770 PCI-X Gigabit NIC (10/100/1000baseTX)
+o HP ProLiant NC7781 embedded PCI-X Gigabit NIC - (10/100/1000baseTX)
+o Netgear GA302T (10/100/1000baseTX)
+o SysKonnect SK-9D21 (10/100/1000baseTX)
+o SysKonnect SK-9D41 (1000baseSX)
DIAGNOSTICS
- bge%d: couldn't map memory A fatal initialization error has
- occurred.
- bge%d: couldn't map ports A fatal initialization error has
- occurred.
- bge%d: couldn't map interrupt A fatal initialization error
- has occurred.
- bge%d: no memory for softc struct! The driver failed to al
- locate memory
for per-device instance information during initialization. - bge%d: failed to enable memory mapping! The driver failed
- to initialize
PCI shared memory mapping. This might happen if the card is - not in a
bus-master slot. - bge%d: no memory for jumbo buffers! The driver failed to
- allocate memory
for jumbo frames during initialization. - bge%d: watchdog timeout The device has stopped responding
- to the network, or there is a problem with the network connection (ca
- ble).
SEE ALSO
HISTORY
The bge device driver first appeared in FreeBSD 4.5.
AUTHORS
- The bge driver was written by Bill Paul <wpaul@windriv
- er.com>.
- BSD November 15, 2005