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 configured 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:

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

Debian                                         September 18, 2008                                         AGE(4)