Sun Microsystems 805-1797-10 Post-Installation Procedures Optional, Conﬁguring Driver Parameters

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Post-Installation Procedures (Optional)

Perform the tasks in the following sections to customize the performance of the Sun Quad FastEthernet PCI adapter.

Conﬁguring Driver Parameters

The qfe device driver, which is loaded from the CD-ROM, controls the SUNW,qfe Ethernet devices. The device driver automatically selects the link speed using the auto-negotiation protocol with the link partner. (See “Auto-Negotiation” on page 16.)

You can manually conﬁgure the qfe device driver parameters to customize each SUNW,qfe device in your system in one of three ways:

Conﬁgure the qfe driver parameters generally for all SUNW,qfe devices in the system by entering the parameter variables in the /etc/system ﬁle.

Set a parameter on a per-device basis by creating the qfe.conf ﬁle in the

4/kernel/drv directory.

Use the ndd utility to temporarily change a parameter. This change is lost when you reboot the system.

See Appendix C,” for more information.

Increasing TCP/IP Performance

The TCP/IP performance of the Sun Quad FastEthernet PCI adapter can be increased by changing the TCP high water mark to 64K. This can be done with the ndd utility as follows.

1. As superuser (root), type:

#ndd -set /dev/tcp tcp_xmit_hiwat 65535

#ndd -set /dev/tcp tcp_recv_hiwat 65535

#ndd -set /dev/tcp tcp_cwnd_max 65534

The changes take effect immediately and affect all the networking interfaces in the system. The changes are lost when you reboot the system.

14 Sun Quad FastEthernet PCI Adapter Installation and User's Guide ♦ Revision A, August 1997

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Contents Revision A, August USA 650 960-1300 fax 650 Revision A, August Please Recycle Contents Running Diagnostics Tests Regulatory Compliance Statements IndexPage Preface How This Book Is OrganizedUnix Commands Related DocumentsTypographic Conventions Shell PromptsOrdering Sun Documents Table P-1SunExpress Contact InformationSun Welcomes Your Comments XiiPage Product Overview 1Sun Quad FastEthernet PCI adapterHardware and Software Requirements Features1Hardware and Software Requirements Checking the OpenBoot Prom Revision Level Displaying the OpenBoot Prom Revision LevelPage Using a text editor, add the following line to the end Installing the AdapterAdding an Entry to the driveraliases File Installing the Adapter Diagnostic Testing Verifying the InstallationExamining Network Activity Code Example 2-1 watch-net-allCommad Output Rebooting the System Perform a reconﬁguration boot on the systemPage Installing the Driver Software At the command line, use the grep command to searchConﬁguring the Driver Software Conﬁguring the Host FilesEtc/hosts ﬁle Reboot your system Booting From the NetworkAt the ok prompt type Post-Installation Procedures Optional Conﬁguring Driver ParametersIncreasing TCP/IP Performance As superuser root, typeForcing Network Speed Between 10 Mbps and 100 Mbps TypeAuto-Negotiation Local-mac-address PropertyOk setenv local-mac-address? true Page Speciﬁcations Physical Dimensions Table A-1Physical DimensionsPower Requirements Table A-2Power RequirementsPerformance Speciﬁcations Table A-3Performance SpeciﬁcationsSpeciﬁcations Page Interface Signals Figure B-132-Pin RJ-45 ConnectorsPage Conﬁguring the Quad FastEthernet Device Driver Parameters Internal TransceiverDriver Parameter Values and Deﬁnitions Table C-1qfe Driver Parameter, Status, and DescriptionsDeﬁning the Current Status Qfe Driver Parameter, Status, and DescriptionsInter-Packet Gap Parameters Table C-2Read-Only Parameters Deﬁning the Current StatusTable C-4Parameters Deﬁning lancemode and ipg0 Packet after receiving a packetOperational Mode Parameters Table C-5Operational Mode ParametersDeﬁning the Number of Back-to-Back Packets to Transmit Reporting Transceiver CapabilitiesTable C-6Back-to-back Packet Transmission Capability Table C-7Read-Only Transceiver CapabilitiesReporting the Link Partner Capabilities Table C-8Read-Only Link Partner CapabilitiesSetting Parameters Using the ndd Utility Setting qfe Driver ParametersTo Specify the Device Instance for the ndd Utility Use the instance number to select the device To modify a parameter value, use the -setoptionUsing the ndd Utility in Interactive Mode To Set the Mode to Auto-Negotiation Select at least one of the ﬁve capabilities adv100fdxcapSetting Parameters in the /etc/system File Table C-9Setting Variables in the /etc/system FileSetting Parameters Using the qfe.conf File Setting ipg Driver Parameters Using a qfe.conf File Unit-address = 2,1 Fourth line in the previous exampleSet the ipg1 and ipg2 parameters for the above four devices Kernel/drv/qfe.conf ﬁleRunning Diagnostics Tests Using the OpenBoot Prom FCode SelftestShut down the system Reset the systemType show-devsto display the list of devices Set the auto-boot?conﬁguration parameter to true Reset and reboot the systemPage Regulatory Compliance Statements FCC Class a NoticeFCC Class B Notice DOC Class a Notice Avis DOC, Classe a DOC Class B Notice Avis DOC, Classe BDeclaration of Conformity EMCSafety Supplementary InformationPage Index Index-51