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+.\" Copyright (c) 2012 Edward Tomasz Napierala <trasz@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd June 25, 2012
+.Dt BXE 4
+.Os
+.Sh NAME
+.Nm bxe
+.Nd "Broadcom BCM57710/BCM57711/BCM57711E 10Gb Ethernet adapter driver"
+.Sh SYNOPSIS
+To compile this driver into the kernel,
+place the following lines in your
+kernel configuration file:
+.Bd -ragged -offset indent
+.Cd "device bxe"
+.Ed
+.Pp
+Alternatively, to load the driver as a
+module at boot time, place the following line in
+.Xr loader.conf 5 :
+.Bd -literal -offset indent
+if_bxe_load="YES"
+.Ed
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for PCIe 10GbE Ethernet adapters based on
+BCM5771x chips.
+The driver supports Jumbo Frames, VLAN tagging, IP, UDP and TCP checksum
+offload, MSI-X, TCP Segmentation Offload (TSO), Large Receive Offload (LRO),
+and Receive Side Steering (RSS).
+.Pp
+For more information on configuring this device, see
+.Xr ifconfig 8 .
+.Sh HARDWARE
+The
+.Nm
+driver provides support for various NICs based on the Broadcom BCM5771x
+family of 10GbE Ethernet controller chips, including the
+following:
+.Pp
+.Bl -bullet -compact
+.It
+Broadcom NetXtreme II BCM57710 10GbE
+.It
+Broadcom NetXtreme II BCM57711 10GbE
+.It
+Broadcom NetXtreme II BCM57711E 10GbE
+.El
+.Sh SYSCTL VARIABLES
+The following variables are available as both
+.Xr sysctl 8
+variables and
+.Xr loader 8
+tunables:
+.Bl -tag -width indent
+.It Va hw.bxe.dcc_enable
+Enable HP Flex-10 support.
+Allowed values are 0 to disable and 1 to enable.
+The default value is 0.
+.It Va hw.bxe.tso_enable
+Enable TCP Segmentation Offload.
+The default value is 1.
+.It Va hw.bxe.int_mode
+Set interrupt mode.
+Allowed values are 0 for IRQ, 1 for MSI/IRQ and 2 for MSI-X/MSI/IRQ.
+The default value is 2.
+.It Va hw.bxe.queue_count
+Specify the number of queues that will be used when a multi-queue
+RSS mode is selected using bxe_multi_mode.
+Allowed values are 0 for Auto or 1 to 16 for fixed number of queues.
+The default value is 0.
+.It Va hw.bxe.multi_mode
+Enable Receive Side Steering.
+Allowed values are 0, which disables all multi-queue/packet sorting
+algorithms, and 1, which assigns incoming frames to receive queues
+according to RSS.
+The default value is 0.
+.It Va hw.bxe.rx_ticks
+Control interrupt coalescing for received frames.
+The first frame always causes an interrupt, but subsequent frames
+are coalesced until the RX/TX ticks timer value expires and another
+interrupt occurs.
+The default value is 25.
+.It Va hw.bxe.tx_ticks
+Control interrupt coalescing for trasmitted frames.
+The first frame always causes an interrupt, but subsequent frames
+are coalesced until the RX/TX ticks timer value expires and another
+interrupt occurs.
+The default value is 50.
+.It Va hw.bxe.mrrs
+Allows to set the PCIe maximum read request size.
+Allowed values are -1 for Auto, 0 for 128B, 1 for 256B, 2 for 512B,
+and 3 for 1kB.
+The default value is -1.
+.El
+.Sh SEE ALSO
+.Xr altq 4 ,
+.Xr arp 4 ,
+.Xr netintro 4 ,
+.Xr ng_ether 4 ,
+.Xr vlan 4 ,
+.Xr ifconfig 8
+.Sh HISTORY
+The
+.Nm
+device driver first appeared in
+.Fx 9.0 .
+.Sh AUTHORS
+The
+.Nm
+driver was written by
+.An Gary Zambrano Aq zambrano@broadcom.com
+and
+.An David Christensen Aq davidch@broadcom.com .