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AGE(4)		       FreeBSD Kernel Interfaces Manual			AGE(4)

NAME
     age -- Attansic/Atheros L1	Gigabit	Ethernet driver

SYNOPSIS
     To	compile	this driver into the kernel, place the following lines in your
     kernel configuration file:

	   device miibus
	   device age

     Alternatively, to load the	driver as a module at boot time, place the
     following line in loader.conf(5):

	   if_age_load="YES"

DESCRIPTION
     The age device driver provides support for	Attansic/Atheros L1 PCI
     Express Gigabit Ethernet controllers.

     All LOMs supported	by the age driver have TCP/UDP/IP checksum offload for
     both transmit and receive,	TCP segmentation offload (TSO),	hardware VLAN
     tag stripping/insertion features and an interrupt moderation mechanism as
     well as a 64-bit multicast	hash filter.

     The L1 also supports Jumbo	Frames (up to 10240 bytes), which can be con-
     figured via the interface MTU setting.  Selecting an MTU larger than 1500
     bytes with	the ifconfig(8)	utility	configures the adapter to receive and
     transmit Jumbo Frames.

     The age driver supports the following media types:

     autoselect	  Enable autoselection of the media type and options.  The
		  user can manually override the autoselected mode by adding
		  media	options	to rc.conf(5).

     10baseT/UTP  Set 10Mbps operation.

     100baseTX	  Set 100Mbps (Fast Ethernet) operation.

     1000baseTX	  Set 1000baseTX operation over	twisted	pair.

     The age 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).

HARDWARE
     The age driver provides support for LOMs based on Attansic/Atheros	L1
     Gigabit Ethernet controller chips,	including:

     +o	 ASUS M2N8-VMX
     +o	 ASUS M2V
     +o	 ASUS M3A
     +o	 ASUS P2-M2A590G
     +o	 ASUS P5B-E
     +o	 ASUS P5B-MX/WIFI-AP
     +o	 ASUS P5B-VMSE
     +o	 ASUS P5K
     +o	 ASUS P5KC
     +o	 ASUS P5KPL-C
     +o	 ASUS P5KPL-VM
     +o	 ASUS P5K-SE
     +o	 ASUS P5K-V
     +o	 ASUS P5L-MX
     +o	 ASUS P5DL2-VM
     +o	 ASUS P5L-VM 1394
     +o	 ASUS G2S

LOADER TUNABLES
     Tunables can be set at the	loader(8) prompt before	booting	the kernel or
     stored in loader.conf(5).

     hw.age.msi_disable
	     This tunable disables MSI support on the Ethernet hardware.  The
	     default value is 0.

     hw.age.msix_disable
	     This tunable disables MSI-X support on the	Ethernet hardware.
	     The default value is 0.

SYSCTL VARIABLES
     The following variables are available as both sysctl(8) variables and
     loader(8) tunables:

     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.

     dev.age.%d.process_limit
	     Maximum amount of Rx events to be processed in the	event loop
	     before rescheduling a taskqueue.  The accepted range is 30	to
	     255, the default value is 128 events.  The	interface does not
	     need to be	brought	down and up again before a change takes
	     effect.

     dev.age.%d.stats
	     Display lots of useful MAC	counters maintained in the driver.

SEE ALSO
     altq(4), arp(4), miibus(4), netintro(4), ng_ether(4), vlan(4),
     ifconfig(8)

HISTORY
     The age driver was	written	by Pyun	YongHyeon <yongari@FreeBSD.org>.  It
     first appeared in FreeBSD 7.1.

FreeBSD	9.3		      September	18, 2008		   FreeBSD 9.3

NAME | SYNOPSIS | DESCRIPTION | HARDWARE | LOADER TUNABLES | SYSCTL VARIABLES | SEE ALSO | HISTORY

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