C H A P T E R

C H A P T E R 52

SunHSI Board Test (sunlink)

The sunlink test verifies the functionality of the SBus and PCI bus SunHSI trademark boards by using the HDLC protocol. sunlink initializes and configures the selected channel.

Next, sunlink opens a datagram socket and tries to modify the socket to accept ioctl communications with the driver, and receive synchronous mode information from it.

sunlink then opens the ports, linking the upper and lower layers with ioctl calls. After initialization, this test checks for activity before attempting to send or receive data. An error message is returned if activity is detected; otherwise the transmit buffer is filled with random data. Random data is used by default. You may also specify other patterns. The data is then transmitted. If the transmission succeeds, sunlink then receives the returned data and verifies that it is identical to what was sent. Finally, statistics about the send and receive are gathered from the socket.

A full sunlink test takes approximately eight minutes per port and makes a brief check of the board ports before the actual test begins. If the port is bad, the test immediately aborts and returns an error message.

sunlink Test Requirements

This test will not pass unless you install the correct loopback connectors or port to port cables on the ports you are testing. The ports specified for test in the Options dialog box must have loopback connectors attached. See Appendix A for loopback connector part numbers and wiring instructions.

sunlink Options

To reach the dialog box below, right-click on the test name in the System Map and select Test Parameter Options. If you do not see this test in the System Map, you might need to expand the collapsed groups, or your system may not include the device appropriate to this test. Refer to the SunVTS User's Guide for more details.

The Configuration field displays the available ports. (See FIGURE 52-1 .)

FIGURE 52-1 sunlink Test Parameter Options Dialog Box

TABLE 52-1 `sunlink` Options
`sunlink` Options	Description
Clock source	Select either the onboard clock or an external clock for use when using `sunlink` . To use the external clock option, the transmit, receive, and clock data lines must be physically looped back.
Internal Loopback	Enables or disables internal loopback tests. Internal Loopback is only needed when the Loopback setting is not port-to-port, and the clock source is onboard.
Baud Rate	Specifies the bit rate transfer speed from 9600bs to 2.048mbs.
Port	Specifies the loopback type--simple single external port loopback, multiple external port loopback, and port-to-port external loopback.

sunlink Loopback Connectors

Refer to Appendix A of this manual for information on Sunlink trademark loopback cables and loopback connectors. Refer to the High Speed Serial Interface hardware manuals for information on null modem cables.

sunlink Test Modes

TABLE 52-2 `sunlinktest` Test Modes
Test Mode	Supported?	Description
Connection	No	Not supported.
Functional (Offline)	Yes	Runs the full set of tests.

sunlink Command-Line Syntax

/opt/SUNWvts/bin/sunlink standard_arguments -o dev= device_name ,p= port# , P= data_pattern ,brate =speed_n ,I,C= clocksource

TABLE 52-3 `sunlink` Command-Line Syntax
Argument	Explanation
`dev=` device_name	Specifies the device to be tested. Use `hih0` for the HDLC protocol.
`p=` ports	Specifies the port number to be tested.
`P=` data_pattern	Specifies the data_pattern as one of the following: `c` --Character (0x55) `i` --Incrementing `d` --Decrementing `r` --Random (default)
brate =speed_n	Specifies the bit rate transfer speed from 9600bs to 2.048mbs.
`I`	Enables internal loopback for HSI.
`c=` clocksource	Specifies the clock source value as one of the following: `B` --Onboard clock source `E` --External clock source

The following is a typical command-line syntax for testing a SunHSI board:

# /opt/SUNWvts/bin/sunlink -o dev=hih0,P=0+1+2+3,brate=100000

This command tests the internal loopback for ports 0, 1, 2, and 3. It does not run for the port to port internal loopback test.

Note Note - 64-bit tests are located in the sparcv9 subdirectory: /opt/SUNWvts/bin/sparcv9/testname. If a test is not present in this directory, then it may only be available as a 32-bit test. For more information refer to 32-Bit and 64-Bit Tests.