NAME
bnx
—
Broadcom NetXtreme II 10/100/Gigabit
Ethernet device
SYNOPSIS
bnx* at pci?
brgphy* at mii?
DESCRIPTION
The bnx
driver supports Broadcom's
NetXtreme II product family which is made up of the BCM5706, BCM5708,
BCM5709, and BCM5716 Ethernet controller chips. Products using these
controller chips include:
- HP NC370F PCI-X Multifunction Gigabit server adapter (1000baseSX)
- HP NC370T PCI-X Multifunction Gigabit server adapter (10/100/1000baseT)
- HP Dual NC370i Multifunction Gigabit embedded server adapter (10/100/1000baseT)
- HP NC373F PCI Express Multifunction Gigabit server adapter (1000baseSX)
- HP NC373i PCI Express Multifunction Gigabit embedded server adapter (10/100/1000baseT)
- HP NC374m PCI Express Multifunction Gigabit embedded server adapter (10/100/1000baseT)
- HP NC373T PCI Express Multifunction Gigabit server adapter (10/100/1000baseT)
- HP NC380T PCI Express Dual Port Multifunction Gigabit server adapter (10/100/1000baseT)
- HP NC382T PCI Express Dual Port server adapter (10/100/1000baseT)
The NetXtreme II product family is composed of various Converged
NIC (or CNIC) Ethernet controllers which support a TCP Offload Engine (TOE),
Remote DMA (RDMA), and iSCSI acceleration, in addition to standard L2
Ethernet traffic, all on the same controller. The following features are
supported in the bnx
driver under
OpenBSD:
IPv4 receive IP/TCP/UDP checksum offload IPv4 transmit TCP/UDP checksum offload VLAN tag insertion and stripping Interrupt coalescing 10/100/1000Mbps operation in full-duplex mode 10/100Mbps operation in half-duplex mode
The bnx
driver supports the following
media types:
autoselect
- Enable autoselection of the media type and options. The user can manually override the autoselected mode via ifconfig(8).
10baseT/UTP
- Set 10Mbps operation. The
ifconfig(8)
mediaopt
option can also be used to select eitherfull-duplex
orhalf-duplex
modes. 100baseTX
- Set 100Mbps (Fast Ethernet) operation. The
ifconfig(8)
mediaopt
option can also be used to select eitherfull-duplex
orhalf-duplex
modes. 1000baseT
- Set 1000baseT operation over twisted pair. Only
full-duplex
mode is supported. 1000baseSX
- Set 1000Mbps (Gigabit Ethernet) operation. Only
full-duplex
mode is supported. 2500baseSX
- Set 2500Mbps operation. Only
full-duplex
mode is supported.
The bnx
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).
FILES
The adapter needs firmware files to run, which are loaded on demand by the driver when the device is attached:
- /etc/firmware/bnx-b06
- /etc/firmware/bnx-b09
- /etc/firmware/bnx-rv2p
- /etc/firmware/bnx-xi-rv2p
- /etc/firmware/bnx-xi90-rv2p
SEE ALSO
arp(4), brgphy(4), ifmedia(4), intro(4), netintro(4), pci(4), hostname.if(5), ifconfig(8)
HISTORY
The bnx
device driver first appeared in
OpenBSD 4.0.
AUTHORS
The bnx
driver was written by
David Christensen
<davidch@broadcom.com>
and ported to OpenBSD by Brad
Smith
<brad@openbsd.org>.