1. DESK-100TX-Ethernet-PCI.zip Driver
2. SCO_MDI.TXT File Contents

SCO_MDI.TXT Driver File Contents (DESK-100TX-Ethernet-PCI.zip)

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       ³                                              ³
       ³    10/100 MB Ethernet Adapter Installation   ³
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       ³         for the SCO Unix MDI Driver          ³
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1) Content
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   *  Introduction

   *  System Requirement

   *  Installing Software

   *  Parameters


2) Introduction
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   This file explains how to install the SCO Unix MDI Driver.


3) System Requirement
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   A) Hardware Requirements :

      o An IBM-compatible personal computer with 80386 or higher
        microprocessor and PCI bus.

      o This adapter.

   B) Firmware Requirements :

      o Fully complient Rev. 2.0 or above PCI BIOS supplied with
        the PC.

      o If the adapter makes use of Digital Semiconductor 21050
        (PCI-PCI bridge) or any other PCI-PCI bridge, the PCI
        BIOS should support PCI-PCI bridge architecture.

   C) Software Requirements :

      o OpenServer or higher version, or
        SCO Unix 3.2.4 or higher version

      o SCO AHS


4) Installing Software
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   To install the SCO Unix MDI Device Driver:

   A) Copy the file SUM333TD.Z to SUM333T.dd.Z on a SCO Unix machine.
      The number in parentheses near the file's name (above) is the
      checksum for the file. To verify, use :

        sum -r SUM333T.dd.Z

      and compare the results.

   B) Uncompress SUM333T.dd.Z to SUM333T.dd, using :

        uncompress SUM333T.dd

   C) Copy the file to a diskette. To create a 3.5" floppy in
      drive 0, use :

          dd if=SUM333T.dd of=/dev/rfd0135ds18

      Mark the diskette:

         Digital Semiconductor 2104x/2114x 10/100 mbps Ethernet
         Controller MDI driver    Rel.03.33

   D) Run custom. From the menu select :

        Software -> Install New -> From Host -> Media Floppy -> Full

   E) Put the distribution diskette in the drive and select continue.

   F) When prompted for distribution floppy 1, just press enter.

   G) When custom has completed, remove the diskette and quit custom.

   H) Run netconfig. Add the desired chain. The DC21X4 drivers are
      called:

      "Digital Semiconductor 2104x Ethernet Controller" and
      "Digital Semiconductor 2114x 10/100 mbps Ethernet Controller"

         NOTE: For boards with more than one Digital Semiconductor
               21X4X on them, a driver must be installed for each
               active port on the board. Thus, if a board has two
               separate ports, two separate chains must be created
               in order to connect both ports to networks.
               This is similar to installing two boards, each with
               one port.

               Not all ports must be active.

   I) You can change the default value of the media by using the
      "Advanced Options..." option in the menu.

   J) When the chain has been configured, select "Exit" from the
      netconfig menu.  If you don't wish to modify the space.c
      file relink the kernel at the prompt.

   K) If you wish to change parameters in the space.c file, edit
      /etc/conf/pack.d/d21x/space.c and make the required changes.
      The changes will apply to all the installed boards.

   L) To activate the adapter, you must reboot. When the system boots,
      you should see the following message among the other
      configuration messages:

    %d21x 0x2000-0x2200  5 - type=DC21040/TP addr=12-34-56-78-9a-bc

      or

    %d21x 0x2000-0x2200  5 - type=DC21140/100TX addr=12-34-56-78-9a-bc

      with the appropriate I/O addresses, IRQ, serial media and IEEE
      address.


5) Parameters
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   The space.c file contains the different parameters that can be
   modified.  They can be divided into several groups:

   A) Port parameters. These include:

         XXX_BUS_ARBITRATION
         XXX_BURST_LENGTH
         XXX_CACHE_ALIGNMENT
         XXX_PASS_BAD_FRAMES
         XXX_BACKOFF_CNTR
         XXX_10MB_THRESHOLD
         XXX_100MB_THRESHOLD
         XXX_PARITY_ERROR_RESPONSE
         XXX_LATENCY_TIMER
         XXX_CRC_CALC
         XXX_DC2114X_GPR_CTRL
         XXX_DC2114X_GPR_DATA
         XXX_TURBO
         XXX_SNOOZE
         XXX_MWI,     /* Enable/Disable MWI extended PCI command */
         XXX_MRM,     /* Enable/Disable MRM extended PCI command */
         XXX_MRL      /* Enable/Disable MRL extended PCI command */
         XXX_0_MAC_ADDR
         XXX_1_MAC_ADDR
         XXX_2_MAC_ADDR
         XXX_3_MAC_ADDR

   B) Driver tuning parameters:

         XXX_RX_BUFS_TO_POST

   C) Driver diagnostics control:

         XXX_DEBUG

   The meaning of each is explained in detail in the space.c file,
   including allowed values for each parameter. The values in
   space.c apply to ALL the installed boards, except the MAC
   address parameter.

   Space.c is NOT the place to modify the board's slot number line.
   This must be modified in netconfig, by running the reconfiguration
   script.

   The serial mode interface can be changed during netconfig as
   explained before.