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       Device Drivers for UnixWare

UnixWare 2.1.X and UnixWare 7

Build the SCO UnixWare C8XX installation diskette before installing the SDMS™ C8XX device driver.

Installing the SDMS UnixWare Drivers

This documentation describes the features and use of the SDMS C8XX device driver for the SCO UnixWare 2.1.X and UnixWare 7 operating system environments.

Note: Use only driver version 4.24.00 for UnixWare 7. If you need support for UnixWare 2.1.X, use driver version 4.08.00. If you need support for UnixWare 2.0.X, use the 3.02.00 driver. 

Note: Current UnixWare drivers can be downloaded from the LSI Logic web site at  http://www.lsilogic.com. After you are connected to this web site, place your cursor on the Get Drivers option in the menu bar. Click on the Drivers selection. Choose the UnixWare operating system for SCSI and click on the Go button. Follow the instructions on subsequent screens to download the drivers.

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Introduction

UnixWare 2.1.X and UnixWare 7 extend the UNIX SVR4.2 operating system. UnixWare features include a graphical user interface (GUI), networking, application compatibility, multitasking capability, and multi-user capability. Additionally, UnixWare provides multiprocessor support.

The SDMS C8XX driver allows SCO UnixWare operating systems to interface with SCSI devices connected to an LSI53C8XX or LSI53C1XXX chipset and/or associated LSI Logic host adapter boards.

The following sections describe the procedures to install the driver during a first time installation of UnixWare, and to update the previously installed UnixWare with the SDMS C8XX driver.

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LSI Logic Devices Supported

All LSI Logic devices and host adapters have undergone a name change. They have transitioned from a SYM prefix to an LSI prefix. No name change has occurred for the SDMS SCO UnixWare driver.

The C8XX driver supports the following devices and their associated LSI Logic host adapters:

  • LSI53C810, LSI53C810A, LSI53C810AE (LSI8100S, LSI8100ASP, LSI20810)
  • LSI53C815 (LSI815XS, LSI8150SP)
  • LSI53C825, LSI53C825A (LSI8250S, LSI8251S, LSI8251D, LSI8250ASP, LSI8251ASP, LSI8251AD)
  • LSI53C860, LSI53C860AE (LSI8600SP, LSI20860)
  • LSI53C875, LSI53C875E (LSI8750SP, LSI8751SP, LSI8751D, LSI8751SPE)
  • LSI53C876 (LSI22801, LSI22802)
  • LSI53C885
  • LSI53C895 (LSI8951U, LSI8952U)
  • LSI53C895A (LSI8953U)
  • LSI53C896 (LSI22910, LSI21002, LSI22902)
  • LSI53C1010 (LSI8955U, LSI21040, LSI22915, LSI22903)

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Features

The C8XX driver for UnixWare supports these features:

  • Ultra160 data transfers (for LSI53C1010)
  • Domain Validation 
  • Easy installation using UnixWare tools 
  • Synchronous negotiation (including Fast SCSI/Ultra SCSI/Ultra2 SCSI)
  • Parallel Protocol Request (PPR) negotiation to SCSI-3 devices for Ultra160 Double Transition data transmission
  • Multiple host adapters
  • Disconnect/Reselect
  • Multiple and non-contiguous Logical Unit Numbers (LUNs) support
  • Dynamic interrupt mapping
  • Scatter/Gather
  • Wide SCSI
  • SCSI pass-through functionality
  • Tagged command queuing
  • Multiprocessor support
  • Target-initiated negotiation
  • NVRAM & NVS configuration data areas
  • Termination control using NVRAM and NVS settings

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Description

The SDMS C8XX driver for SCO UnixWare operating systems must be created by copying the raw dd image file onto a 3.5-inch diskette that should be labeled "PCI SCSI SCO UnixWare Driver Diskette." Use this diskette to load the driver during the installation of the operating system, or to access the devices on the SCSI bus after a UnixWare installation. See the section titled Build the SCO UnixWare C8XX installation diskette for more details.

The installation media kit includes a host adapter diskette. This diskette contains a bundled C8XX driver. If you have both the C8XX driver directly from LSI Logic and also the driver bundled with the UnixWare operating system, use the latest release of the C8XX driver.

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Installing the SDMS UnixWare C8XX Driver

This section consists of instructions for new system installations and existing system installations. LSI Logic recommends that you also refer to the instructions in the UnixWare Installation Handbook before installing the driver.

New System Installation

  1. Boot your computer using the installation diskettes that you received with the UnixWare operating system distribution package. UnixWare 7 has two diskettes.
  1. Follow the instructions on the screen.
  1. Insert the PCI SCSI SCO UnixWare Driver Diskette when prompted to insert the host adapter diskette. 

To install other host adapter drivers, insert the host adapter diskette provided with the UnixWare distribution package and press Enter. If there are no other host adapter drivers to install, continue the installation and follow the instructions.

The system loads the required drivers, such as C8XX, and indicates when they are loaded. At the end of the installation, you will see a prompt to reinsert the HBA driver diskette. 
  1. Insert the PCI SCSI SCO UnixWare Driver Diskette and press Enter. The kernel will be built and the installation will terminate.
  1. Remove the driver diskette when prompted to do so and reboot the system.

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Existing System Installation

This section provides installation information about adding or updating the C8XX driver package.

Before you install the C8XX driver, make a backup copy of the existing kernel:

  1. Log on as root.
  1. At the shell prompt, type:

    cp /stand/unix /stand/unix.safe

    Use this copy of the old kernel to reboot the system if the driver installation fails. Refer to Troubleshooting for more information.

  1. Once the old kernel is saved, insert the PCI SCSI SCO UnixWare Driver Diskette.
  1. Load the driver using the pkgadd command by typing:

    pkgadd -d diskette1

  1. Select C8XX and press Enter. The C8XX driver is then loaded  onto the system.
  1. The system will again prompt you to load a driver even if loading was successful. Type q (quit) and press Enter.
  1. Verify that the driver is now loaded successfully by typing:

    pkginfo c8xx

  1. The package information should look like this:

system c8xx Symbios IHV HBA

  1. After the C8XX package is loaded, a message indicating a system reboot is necessary may appear. To reboot the system, type the following command:

        init 6

During the boot process, the driver scans the SCSI bus and lists the devices found on it. If the kernel panics during boot, then reboot the system with the saved copy of the old kernel. Booting from the saved copy of the kernel is described in the following section titled "Troubleshooting." If the reboot is successful, the system is ready to use.

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Troubleshooting

Here is a potential problem and its suggested solution:

Problem: Driver Installation Fails.

You will need to utilize the unix.safe kernel file that was created before installing the C8XX host adapter driver. This applies only to the UnixWare 7 operating system.

Solution:

  1. Replace the system UNIX with the backup copy you created before attempting to install the C8XX host adapter driver. To perform this task, reboot the system.
  1. Wait for the UnixWare 7 Logo screen to appear, then press the space bar to begin an interactive boot session.

    boot unix.safe

  1. The UnixWare 7 logo will reappear. The system will then boot from the UNIX kernel specified above.

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