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

  • BSD mandoc
     

    NAME

    
    
    en
    
     - device driver for Midway-based ATM interfaces
    
     
    

    SYNOPSIS

    To compile this driver into the kernel, place the following lines in your kernel configuration file:
    device en device atm device utopia

    Alternatively, to load the driver as a module at boot time, place the following line in loader.conf5:

    if_en_load="YES"
    
     

    DESCRIPTION

    The device driver supports Midway-based ATM interfaces including the Efficient Networks, Inc. ENI-155 and Adaptec ANA-59x0. Midway is an AAL5 SAR (Segmentation and Reassembly) chip.

    For configuring the card for IP see natmip(4).

    The following sysctls are recognized by the driver additionally to those handled by utopia(4):

    hw.atm.enX.istats
    Contains an array of Vt uint32_t with internal driver statistics.
    hw.atm.enX.debug
    This is a bit map of debugging options. This variable is only available when the driver is compiled with debugging support.

    The driver supports the media options sdh noscramb and unassigned (see utopia(4)).  

    DIAGNOSTICS

    en0 <Efficient Networks ENI-155p> rev 0 int a irq 5 on pci0:16
    en0: ATM midway v0, board IDs 6.0, Utopia (pipelined), 512KB on-board RAM
    en0: maximum DMA burst length = 64 bytes
    en0: 7 32KB receive buffers, 8 32KB transmit buffers allocated
    
     

    CAVEATS

    The driver extensively uses DMA on PCI. The first generation PCI chipsets do not work or exhibit poor performance.  

    SEE ALSO

    natm(4), natmip(4), utopia(4), ifconfig(8), route(8)  

    AUTHORS

    An Chuck Cranor of Washington University implemented driver in 1996 for Nx .


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    DIAGNOSTICS
    CAVEATS
    SEE ALSO
    AUTHORS


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