BGE(4) Device Drivers Manual BGE(4)

bge
Broadcom BCM57xx/BCM590x 10/100/Gigabit Ethernet driver

bge* at pci? dev ? function ?

Configuration of PHYs may also be necessary. See mii(4).

The bge driver provides support for various NICs based on the Broadcom BCM570x, 571x, 572x, 575x, 576x, 578x, 5776x and 5778x Gigabit Ethernet controller chips and the 590x and 5779x Fast Ethernet controller chips, including the following:

The bge driver supports IPv4 IP, TCP, and UDP checksum offload for receive, IP checksum offload for transmit, VLAN tag insertion and stripping, as well as a 256-bit multicast hash filter. The BCM5717, BCM5718, BCM5723, BCM5754, BCM5755, BCM5761, BCM5762, BCM5764, BCM5784, BCM5785, BCM5787 and BCM577xx chips also support IPv6 receive TCP/UDP checksum offload. The bge driver supports this feature of the chip. See ifconfig(8) for information on how to enable this feature.

The BCM5700, BCM5701, BCM5702, BCM5703, BCM5704, BCM5714, BCM5717, BCM5719, BCM5720, BCM5762, BCM5780, BCM57765 and BCM57766 also support jumbo frames, which can be configured 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.

The level of interrupt mitigation for received packets can be adjusted with the hw.bge.rx_lvl sysctl(8) control. A value of 1 yields a bge interrupt for every two full-sized Ethernet frames. Each increment of the value will, roughly, halve receive interrupt rate, up to a maximum of 5, which interrupts about every 30 to 40 full-sized TCP segments.

The bge driver supports the following media types:

Enable autoselection of the media type and options. The user can manually override the autoselected mode by adding media options to the appropriate ifconfig.if(5) file.
Set 10Mbps operation. The ifconfig(8) mediaopt option can also be used to select either full-duplex or half-duplex modes.
Set 100Mbps (Fast Ethernet) operation. The ifconfig(8) mediaopt option can also be used to select either full-duplex or half-duplex modes.
Set 1000baseT operation over twisted pair. Both full-duplex and half-dupex modes are supported.
Set 1000Mbps (Gigabit Ethernet) operation. Both full-duplex and half-duplex modes are supported.

The bge driver supports the following media options:

Force full duplex operation.
Force half duplex operation.

For more information on configuring this device, see ifconfig(8).

bge%d: can't find mem space
A fatal initialization error has occurred.
bge%d: couldn't map interrupt
A fatal initialization error has occurred.
bge%d: watchdog timeout -- resetting
The device has stopped responding to the network, or there is a problem with the network connection (cable).

arp(4), brgphy(4), ifmedia(4), mii(4), netintro(4), pci(4), ifconfig(8)

The bge driver first appeared in NetBSD 1.6.1.

The bge driver was written by Bill Paul ⟨wpaul@windriver.com⟩ for FreeBSD and ported to NetBSD by Frank van der Linden ⟨fvdl@wasabisystems.com⟩, Jason R. Thorpe ⟨thorpej@wasabisystems.com⟩ and Jonathan Stone ⟨jonathan@dsg.stanford.edu⟩.
February 20, 2019 NetBSD 9.4