1.\" Copyright (c) 2008 Pyun YongHyeon 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.Dd September 18, 2008 26.Dt AGE 4 27.Os 28.Sh NAME 29.Nm age 30.Nd Attansic/Atheros L1 Gigabit Ethernet driver 31.Sh SYNOPSIS 32To compile this driver into the kernel, 33place the following lines in your 34kernel configuration file: 35.Bd -ragged -offset indent 36.Cd "device miibus" 37.Cd "device age" 38.Ed 39.Pp 40Alternatively, to load the driver as a 41module at boot time, place the following line in 42.Xr loader.conf 5 : 43.Bd -literal -offset indent 44if_age_load="YES" 45.Ed 46.Sh DESCRIPTION 47The 48.Nm 49device driver provides support for Attansic/Atheros L1 PCI Express 50Gigabit Ethernet controllers. 51.Pp 52All LOMs supported by the 53.Nm 54driver have TCP/UDP/IP checksum offload for both transmit and 55receive, TCP segmentation offload (TSO), hardware VLAN tag 56stripping/insertion features and an interrupt moderation mechanism 57as well as a 64-bit multicast hash filter. 58.Pp 59The L1 also supports Jumbo Frames (up to 10240 bytes), which can be 60configured via the interface MTU setting. 61Selecting an MTU larger than 1500 bytes with the 62.Xr ifconfig 8 63utility configures the adapter to receive and transmit Jumbo Frames. 64.Pp 65The 66.Nm 67driver supports the following media types: 68.Bl -tag -width ".Cm 10baseT/UTP" 69.It Cm autoselect 70Enable autoselection of the media type and options. 71The user can manually override 72the autoselected mode by adding media options to 73.Xr rc.conf 5 . 74.It Cm 10baseT/UTP 75Set 10Mbps operation. 76.It Cm 100baseTX 77Set 100Mbps (Fast Ethernet) operation. 78.It Cm 1000baseTX 79Set 1000baseTX operation over twisted pair. 80.El 81.Pp 82The 83.Nm 84driver supports the following media options: 85.Bl -tag -width ".Cm full-duplex" 86.It Cm full-duplex 87Force full duplex operation. 88.It Cm half-duplex 89Force half duplex operation. 90.El 91.Pp 92For more information on configuring this device, see 93.Xr ifconfig 8 . 94.Sh HARDWARE 95The 96.Nm 97driver provides support for LOMs based on 98Attansic/Atheros L1 Gigabit Ethernet controller chips, including: 99.Pp 100.Bl -bullet -compact 101.It 102ASUS M2N8-VMX 103.It 104ASUS M2V 105.It 106ASUS M3A 107.It 108ASUS P2-M2A590G 109.It 110ASUS P5B-E 111.It 112ASUS P5B-MX/WIFI-AP 113.It 114ASUS P5B-VMSE 115.It 116ASUS P5K 117.It 118ASUS P5KC 119.It 120ASUS P5KPL-C 121.It 122ASUS P5KPL-VM 123.It 124ASUS P5K-SE 125.It 126ASUS P5K-V 127.It 128ASUS P5L-MX 129.It 130ASUS P5DL2-VM 131.It 132ASUS P5L-VM 1394 133.It 134ASUS G2S 135.El 136.Sh LOADER TUNABLES 137Tunables can be set at the 138.Xr loader 8 139prompt before booting the kernel or stored in 140.Xr loader.conf 5 . 141.Bl -tag -width "xxxxxx" 142.It Va hw.age.msi_disable 143This tunable disables MSI support on the Ethernet hardware. 144The default value is 0. 145.It Va hw.age.msix_disable 146This tunable disables MSI-X support on the Ethernet hardware. 147The default value is 0. 148.El 149.Sh SYSCTL VARIABLES 150The following variables are available as both 151.Xr sysctl 8 152variables and 153.Xr loader 8 154tunables: 155.Bl -tag -width "xxxxxx" 156.It Va dev.age.%d.int_mod 157Maximum amount of time to delay interrupt processing in units of 1582us. 159The accepted range is 0 to 65000, the default is 50 (100us). 160Value 0 completely disables the interrupt moderation. 161.It Va dev.age.%d.process_limit 162Maximum amount of Rx events to be processed in the event loop before 163rescheduling a taskqueue. 164The accepted range is 30 to 255, the default value is 128 events. 165The interface does not need to be brought down and up again before 166a change takes effect. 167.It Va dev.age.%d.stats 168Display lots of useful MAC counters maintained in the driver. 169.El 170.Sh SEE ALSO 171.Xr altq 4 , 172.Xr arp 4 , 173.Xr miibus 4 , 174.Xr netintro 4 , 175.Xr ng_ether 4 , 176.Xr vlan 4 , 177.Xr ifconfig 8 178.Sh HISTORY 179The 180.Nm 181driver was written by 182.An Pyun YongHyeon Aq Mt yongari@FreeBSD.org . 183It first appeared in 184.Fx 7.1 . 185