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BNX(4)                   BSD Kernel Interfaces 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   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)

     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 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 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>.

BSD                             April 30, 2017                             BSD