|C H A P T E R 54|
SunHSI Board Test (sunlink)
The sunlink test verifies the functionality of the SBus and PCI bus SunHSI 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.
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.
To reach the following dialog box, 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, might 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 TABLE 54-1.)
Refer to Appendix A of this manual for information on SunLink loopback cables and loopback connectors. Refer to the High Speed Serial Interface hardware manuals for information on null modem cables.
/opt/SUNWvts/bin/sunlink standard-arguments -o dev=device-name,p=port, P=data-pattern,brate=speed-n,I,C=clocksource
The following is typical command-line syntax for testing a SunHSI board:
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.