Specifications

Loading an OpenVMS AXP Device Driver

An OpenVMS AXP device driver, as discussed in Chapter 9, is created as an

executive image. It is loaded as an integral part of the executive by the executive

loader. You use the System Management utility (SYSMAN) to interface with the

system loader.

This chapter describes the procedures you should follow to load an OpenVMS

AXP device driver for testing on an AXP system:

• Section 10.1 describes a general method for conﬁguring I/O devices and

loading their drivers.

• Section 10.2 describes each command provided by SYSMAN.

• Section 10.3 explains how to enhance system performance by loading as

‘‘sliced’’ images drivers that have been linked with section binding enabled.

10.1 Manually Connecting Devices and Loading Drivers

For adapters supported by Digital, there is never any need to manually connect a

device. Use the SYSMAN IO AUTOCONFIGURE command with the appropriate

/SELECT and /EXCLUDE lists to conﬁgure the system. If you omit these

qualiﬁers, the IO AUTOCONFIGURE command conﬁgures the entire system.

For non-Digital-supplied adapters and new Digital adapters not yet supported

by the IO AUTOCONFIGURE command, you must perform a manual connect,

generally issuing an IO CONNECT command in the following format:

SYSMAN>

IO CONNECT devname/ADAPTER=x/CSR=y/VECTOR=z/DRIVER=xxdriver-

/node=busspecificinfo

In such a command, specifying the device name and driver name is

straightforward (and described in Section 10.2). This section describes how to

determine the adapter, the csr, and the vector parameters for devices attached

to the EISA, XMI, TURBOchannel, and Futurebus+. For more information about

specifying node information, see the appropriate bus support chapter in this

manual.

10.1.1 Obtaining the Adapter’s TR Number

The adapter parameter tells the SYSMAN interface which adapter the device

belongs to. The value you supply in this parameter must match the TR number

of some ADP in the I/O database.

To ﬁnd a value for the adapter parameter, use the SYSMAN IO SHOW BUS

command to display the adapters present in the system. The TR number of

each of the ADPs in the system is part of the IO SHOW BUS display. Find your

adapter in the IO SHOW BUS display and use the associated TR number in the

IO CONNECT command.

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