BNX(4)                    OpenBSD Programmer's Manual                   BNX(4)

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:

     o   Dell PowerEdge 1950 integrated BCM5708 NIC (10/100/1000baseT)
     o   Dell PowerEdge 2900 integrated BCM5708 NIC (10/100/1000baseT)
     o   Dell PowerEdge 2950 integrated BCM5708 NIC (10/100/1000baseT)
     o   Dell PowerEdge 2970 integrated BCM5708 NIC (10/100/1000baseT)
     o   Dell PowerEdge R410 integrated BCM5716 NIC (10/100/1000baseT)
     o   Dell PowerEdge R610 integrated BCM5709 NIC (10/100/1000baseT)
     o   Dell PowerEdge R710 integrated BCM5709 NIC (10/100/1000baseT)
     o   Dell PowerEdge R805 integrated BCM5708 NIC (10/100/1000baseT)
     o   Dell PowerEdge R900 integrated BCM5708 NIC (10/100/1000baseT)
     o   Dell PowerEdge R905 integrated BCM5708 NIC (10/100/1000baseT)
     o   Dell PowerEdge T410 integrated BCM5716 NIC (10/100/1000baseT)
     o   Dell PowerEdge T610 integrated BCM5709 NIC (10/100/1000baseT)
     o   HP NC370F PCI-X Multifunction Gigabit server adapter (1000baseSX)
     o   HP NC370T PCI-X Multifunction Gigabit server adapter
         (10/100/1000baseT)
     o   HP Dual NC370i Multifunction Gigabit embedded server adapter
         (10/100/1000baseT)
     o   HP NC373F PCI Express Multifunction Gigabit server adapter
         (1000baseSX)
     o   HP NC373i PCI Express Multifunction Gigabit embedded server adapter
         (10/100/1000baseT)
     o   HP NC374m PCI Express Multifunction Gigabit embedded server adapter
         (10/100/1000baseT)
     o   HP NC373T PCI Express Multifunction Gigabit server adapter
         (10/100/1000baseT)
     o   HP NC380T PCI Express Dual Port Multifunction Gigabit server adapter
         (10/100/1000baseT)
     o   HP NC382T PCI Express Dual Port server adapter (10/100/1000baseT)
     o   IBM xSeries 3550 integrated BCM5708 NIC (10/100/1000baseT)
     o   IBM xSeries 3650 integrated BCM5708 NIC (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), Re-
     mote DMA (RDMA), and iSCSI acceleration, in addition to standard L2 Eth-
     ernet traffic, all on the same controller.  The following features are
     supported in the bnx driver under OpenBSD:

           IPv4 receive IP/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 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.

     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 sup-
                      ported.

     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>.

OpenBSD 4.7                     August 2, 2009                               2
