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stge (4)
  • >> stge (4) ( FreeBSD man: Специальные файлы /dev/* )

  • BSD mandoc
     

    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.conf5:

    if_stge_load="YES"
    
     

    DESCRIPTION

    The 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 driver have TCP/UDP/IP checksum offload for both receive and transmit, hardware VLAN tag stripping/insertion features, 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 either copper or 1000baseX fiber applications.

    The Sundance/Tamarack TC9021 also supports jumbo frames, 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 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.conf5.
    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 Sundance/Tamarack supports 1000Mbps in autoselect mode only.

    The driver supports the following media options:

    full-duplex
    Force full duplex operation.
    half-duplex
    Force half duplex operation.

    The driver also supports one special link option for 1000baseTX cards:

    link0
    With 1000baseTX cards, establishing a link between two ports requires 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 master and the other a slave. The 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 driver provides support for various NICs based on the Sundance/Tamarack TC9021 based Gigabit Ethernet controller chips, including:

     

    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 interrupts. 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 an Rx interrupt if the number of frames received is less than rxint_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_ether4, polling(4), vlan(4), ifconfig(8)  

    HISTORY

    The driver was ported from Nx and first appeared in Fx 6.2 . The Nx version was written by An Jason R. Thorpe Aq thorpej@NetBSD.org .  

    AUTHORS

    The driver was ported by An Pyun YongHyeon Aq yongari@FreeBSD.org .


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    HARDWARE
    SYSCTL VARIABLES
    SEE ALSO
    HISTORY
    AUTHORS


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