Conﬁguring Driver Parameters | Sun Microsystems 805-1797-10 specs

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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Sun Microsystems 805-1797-10 Post-Installation Procedures Optional, Conﬁguring Driver Parameters, As superuser root, type

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 Organized Unix Commands Related Documents Typographic Conventions Shell Prompts Ordering Sun Documents Table P-1SunExpress Contact Information Sun Welcomes Your Comments XiiPage Product Overview 1Sun Quad FastEthernet PCI adapter Hardware 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 Files Etc/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, type Forcing Network Speed Between 10 Mbps and 100 Mbps Type Auto-Negotiation Local-mac-address Property Ok setenv local-mac-address? true Page Speciﬁcations Physical Dimensions Table A-1Physical Dimensions Power Requirements Table A-2Power RequirementsPerformance Speciﬁcations Table A-3Performance Speciﬁcations Speciﬁcations Page Interface Signals Figure B-132-Pin RJ-45 ConnectorsPage Conﬁguring the Quad FastEthernet Device Driver Parameters Internal Transceiver Driver Parameter Values and Deﬁnitions Table C-1qfe Driver Parameter, Status, and Descriptions Deﬁning the Current Status Qfe Driver Parameter, Status, and Descriptions Inter-Packet Gap Parameters Table C-2Read-Only Parameters Deﬁning the Current Status Table C-4Parameters Deﬁning lancemode and ipg0 Packet after receiving a packet Operational Mode Parameters Table C-5Operational Mode Parameters Deﬁning the Number of Back-to-Back Packets to Transmit Reporting Transceiver CapabilitiesTable C-6Back-to-back Packet Transmission Capability Table C-7Read-Only Transceiver Capabilities Reporting the Link Partner Capabilities Table C-8Read-Only Link Partner Capabilities Setting 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 -setoption Using the ndd Utility in Interactive Mode To Set the Mode to Auto-Negotiation Select at least one of the ﬁve capabilities adv100fdxcap Setting Parameters in the /etc/system File Table C-9Setting Variables in the /etc/system File Setting Parameters Using the qfe.conf File Setting ipg Driver Parameters Using a qfe.conf File Unit-address = 2,1 Fourth line in the previous example Set the ipg1 and ipg2 parameters for the above four devices Kernel/drv/qfe.conf ﬁle Running Diagnostics Tests Using the OpenBoot Prom FCode Selftest Shut 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 Notice FCC Class B Notice DOC Class a Notice Avis DOC, Classe a DOC Class B Notice Avis DOC, Classe B Declaration of Conformity EMC Safety Supplementary InformationPage Index Index-51