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$FreeBSD: releng/11.0/share/man/man4/age.4 267938 2014-06-26 21:46:14Z bapt $
.Dd September 18, 2008 .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: d -ragged -offset indent .Cd "device miibus" .Cd "device age" .Ed
p Alternatively, to load the driver as a module at boot time, place the following line in .Xr loader.conf 5 : d -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.
p All LOMs supported by the .Nm 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.
p 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.
p The .Nm driver supports the following media types: l -tag -width ".Cm 10baseT/UTP" t 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 . t Cm 10baseT/UTP Set 10Mbps operation. t Cm 100baseTX Set 100Mbps (Fast Ethernet) operation. t Cm 1000baseTX Set 1000baseTX operation over twisted pair. .El
p The .Nm driver supports the following media options: l -tag -width ".Cm full-duplex" t Cm full-duplex Force full duplex operation. t Cm half-duplex Force half duplex operation. .El
p 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:
p l -bullet -compact t ASUS M2N8-VMX t ASUS M2V t ASUS M3A t ASUS P2-M2A590G t ASUS P5B-E t ASUS P5B-MX/WIFI-AP t ASUS P5B-VMSE t ASUS P5K t ASUS P5KC t ASUS P5KPL-C t ASUS P5KPL-VM t ASUS P5K-SE t ASUS P5K-V t ASUS P5L-MX t ASUS P5DL2-VM t ASUS P5L-VM 1394 t ASUS G2S .El .Sh LOADER TUNABLES Tunables can be set at the .Xr loader 8 prompt before booting the kernel or stored in .Xr loader.conf 5 . l -tag -width "xxxxxx" t Va hw.age.msi_disable This tunable disables MSI support on the Ethernet hardware. The default value is 0. t Va hw.age.msix_disable This tunable disables MSI-X support on the Ethernet hardware. The default value is 0. .El .Sh SYSCTL VARIABLES The following variables are available as both .Xr sysctl 8 variables and .Xr loader 8 tunables: l -tag -width "xxxxxx" t 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. t Va 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. t 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 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 .