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STGE(4) BSD Kernel Interfaces Manual STGE(4) NAME stge -- Sundance/Tamarack TC9021 Gigabit Ethernet adapter driver SYNOPSIS To compile this driver into the kernel, place the following lines in your kernel configuration file: device miibus device stge Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): if_stge_load="YES" DESCRIPTION The stge device driver provides support for various NICs based on the Sundance/Tamarack TC9021 Gigabit Ethernet controller chip. The Sundance/Tamarack TC9021 is found on the D-Link DGE-550T and the Antares Microsystems Gigabit Ethernet board. It uses an external PHY or an external 10-bit interface. All NICs supported by the stge driver have TCP/UDP/IP checksum offload for both receive and transmit, hardware VLAN tag stripping/insertion fea- tures, and receive interrupt moderation mechanism as well as a 64-bit multicast hash filter. The Sundance/Tamarack TC9021 supports TBI (ten bit interface) and GMII transceivers, which means it can be used with ei- ther copper or 1000baseX fiber applications. The Sundance/Tamarack TC9021 also support jumbo frames, 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 stge 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. The ifconfig(8) mediaopt option can also be used to select either full-duplex or half-duplex modes. 100baseTX Set 100Mbps (Fast Ethernet) operation. The ifconfig(8) mediaopt option can also be used to select either full-duplex or half-duplex modes. 1000baseTX Set 1000baseTX operation over twisted pair. The Sun- dance/Tamarack supports 1000Mbps in autoselect mode only. The stge driver supports the following media options: full-duplex Force full duplex operation. half-duplex Force half duplex operation. The stge driver also supports one special link option for 1000baseTX cards: link0 With 1000baseTX cards, establishing a link between two ports re- quires that one port is configured as master and the other one as slave. With autonegotiation, the master/slave settings will be chosen automatically. However when manually selecting the link state, it is necessary to force one side of the link to be a mas- ter and the other a slave. The stge driver configures the ports as slaves by default. Setting the link0 flag with ifconfig(8) will set a port as a master instead. For more information on configuring this device, see ifconfig(8). HARDWARE The stge driver provides support for various NICs based on the Sun- dance/Tamarack TC9021 based Gigabit Ethernet controller chips, including: o Antares Microsystems Gigabit Ethernet o ASUS NX1101 Gigabit Ethernet o D-Link DL-4000 Gigabit Ethernet o IC Plus IP1000A Gigabit Ethernet o Sundance ST-2021 Gigabit Ethernet o Sundance ST-2023 Gigabit Ethernet o Sundance TC9021 Gigabit Ethernet o Tamarack TC9021 Gigabit Ethernet SYSCTL VARIABLES The following variables are available as both sysctl(8) variables and loader(8) tunables: dev.stge.%d.rxint_nframe Number of frames between RxDMAComplete interrupt. The accepted range is 1 to 255, default value is 8 frames. The interface has to be brought down and up again before a change takes effect. dev.stge.%d.rxint_dmawait Maximum amount of time to wait in 1us increments before issuing a Rx interrupt if number of frames received is less than rx- int_nframe. The accepted range is 0 to 4194, default value is 30 microseconds. The interface has to be brought down and up again before a change takes effect. SEE ALSO altq(4), arp(4), miibus(4), netintro(4), ng_ether(4), polling(4), vlan(4), ifconfig(8) HISTORY The stge driver was ported from NetBSD and first appeared in FreeBSD 6.2. The NetBSD version was written by Jason R. Thorpe <thorpej@NetBSD.org>. AUTHORS The stge driver was ported by Pyun YongHyeon <yongari@FreeBSD.org>. BSD July 25, 2006 BSD
NAME | SYNOPSIS | DESCRIPTION | HARDWARE | SYSCTL VARIABLES | SEE ALSO | HISTORY | AUTHORS
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