xref: /dflybsd-src/share/man/man4/age.4 (revision 26595b188cbe468e3b07a13e2a5cfaa3de0d7843)

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.\" $FreeBSD: src/share/man/man4/age.4,v 1.3 2008/09/18 05:08:17 yongari Exp $
.\"
.Dd November 28, 2014
.Dt AGE 4
.Os
.Sh NAME
.Nm age
.Nd Attansic/Atheros L1 Gigabit Ethernet 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 miibus"
.Cd "device age"
.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_age_load="YES"
.Ed
.Sh DESCRIPTION
The
.Nm
device driver provides support for Attansic/Atheros L1 PCI Express
Gigabit Ethernet controllers.
.Pp
All LOMs supported by the
.Nm
driver have TCP/UDP/IP checksum offload for both transmit and receive,
hardware VLAN tag stripping/insertion features and
an interrupt moderation mechanism as well as
a 64-bit multicast hash filter.
.Pp
The L1 also supports Jumbo Frames (up to 10240 bytes),
which can be configured via the interface MTU setting.
Selecting an MTU larger than 1500 bytes with the
.Xr ifconfig 8
utility configures the adapter to receive and transmit Jumbo Frames.
.Pp
The
.Nm
driver supports the following media types:
.Bl -tag -width ".Cm 10baseT/UTP"
.It Cm autoselect
Enable autoselection of the media type and options.
The user can manually override
the autoselected mode by adding media options to
.Xr rc.conf 5 .
.It Cm 10baseT/UTP
Set 10Mbps operation.
.It Cm 100baseTX
Set 100Mbps (Fast Ethernet) operation.
.It Cm 1000baseT
Set 1000baseT operation over twisted pair.
.El
.Pp
The
.Nm
driver supports the following media options:
.Bl -tag -width ".Cm full-duplex"
.It Cm full-duplex
Force full duplex operation.
.It Cm half-duplex
Force half duplex operation.
.El
.Pp
For more information on configuring this device, see
.Xr ifconfig 8 .
.Sh HARDWARE
The
.Nm
driver provides support for LOMs based on
Attansic/Atheros L1 Gigabit Ethernet controller chips, including:
.Pp
.Bl -bullet -compact
.It
ASUS M2N8-VMX
.It
ASUS M2V
.It
ASUS M3A
.It
ASUS P2-M2A590G
.It
ASUS P5B-E
.It
ASUS P5B-MX/WIFI-AP
.It
ASUS P5B-VMSE
.It
ASUS P5K
.It
ASUS P5KC
.It
ASUS P5KPL-C
.It
ASUS P5KPL-VM
.It
ASUS P5K-SE
.It
ASUS P5K-V
.It
ASUS P5L-MX
.It
ASUS P5DL2-VM
.It
ASUS P5L-VM 1394
.It
ASUS G2S
.El
.Sh SYSCTL VARIABLES
The following variables are available as
.Xr sysctl 8
variables:
.Bl -tag -width "xxxxxx"
.It Va dev.age.%d.int_mod
Maximum amount of time to delay interrupt processing in units of 2us.
The accepted range is 0 to 65000, the default is 50 (100us).
Value 0 completely disables the interrupt moderation.
.It Va dev.age.%d.stats
Display lots of useful MAC counters maintained in the driver.
.El
.Sh SEE ALSO
.Xr altq 4 ,
.Xr arp 4 ,
.Xr ifmedia 4 ,
.Xr miibus 4 ,
.Xr netintro 4 ,
.Xr ng_ether 4 ,
.Xr vlan 4 ,
.Xr ifconfig 8
.Sh HISTORY
The
.Nm
driver was written by
.An Pyun YongHyeon Aq Mt yongari@FreeBSD.org .
It first appeared in
.Fx 7.1 .