Sun Microsystems X1150A manual Gigabit Link Clock Mastership Controls, Interpacket Gap Parameters

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Gigabit Link Clock Mastership Controls

The concept of link clock mastership introduced with one gigabit twisted-pair technology. This concept requires one side of the link to be the master that provides the link clock and the other to be the slave that uses the link clock. Once this relationship is established the link is up, and data can be communicated. Two Physical layer parameters control whether your side is the master or the slave or whether mastership is negotiated with the link partner. Those parameters are as follows.

TABLE 4-4Forced Mode Parameter

ParameterDescription

master-cfg-enableDetermines whether or not during the auto-negotiation process the link clock mastership is setup automatically.

master-cfg-valueIf the master-cfg-enableparameter is set then the mastership is not setup automatically but is dependant on the value of master-cfg-value. If the master-cfg-valueis set then the physical layer expects the local device to be the link master. If it is not set then it expects the link partner to be the master.

If Auto-negotiation is not enabled then the value of master-cfg-enableis ignored and the value of master-cfg-valueis key to the link clock mastership. If the master-cfg-valueis set then the physical layer expects the local device to be the link master. If it’s not set then it expects the link partner to the master.

Caution –Do not adjust the link clock mastership parameters unless you clearly understand the settings of the link partner. Incorrect link clock mastership configuration results in link up failure.

Interpacket Gap Parameters

The ce device supports a programmable mode called enable-ipg0.

When a driver receives a packet with enable-ipg0set (the default), it adds an additional time delay before transmitting the packet. This delay, set by the ipg0 parameter, is in addition to the delay set by the ipg1 and ipg2 parameters. The additional ipg0 delay helps to reduce collisions.

42 Sun GigaSwift Ethernet Adapter Installation and User’s Guide • February 2003

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Contents Sun GigaSwift Ethernet Adapter Installation User’s Guide Please Recycle Regulatory Compliance Statements FCC Class a NoticeICES-003 Class a Notice Avis NMB-003, Classe a Bsmi Class a Notice Page Declaration of Conformity European UnionPage Declaration of Conformity Page Contents Network Configuration Configuring Driver ParametersConfiguring VLANs SpecificationsDiagnostic Software and Troubleshooting Issues IndexPage Figures Page Tables Performance Sepcifications Preface How This Book Is OrganizedUsing Unix Commands Typographic ConventionsShell Prompts Accessing Sun Documentation OnlineRelated Documentation Sun Welcomes Your Comments Product Overview Hardware OverviewLink is in Full Duplex mode Sun GigaSwift Ethernet MMF AdapterLED Displays 1Front Panel Display LEDs for the MMF AdapterSun GigaSwift Ethernet UTP Adapter 2Sun GigaSwift Ethernet UTP Adapter2Front Panel Display LEDs for the UTP Adapter Hardware and Software Requirements Patch RequirementsProduct Features Key Protocols and InterfacesDiagnostic Support Page Installing the Driver Software Become superuser1Files and Directories on the CD-ROM Select the packages you want to install Menu similar to the following displaysPatch version should be -07 or greater Verifying Patches# showrev -p grep Patch version should be -13 or greater Patch version should be -05 or greaterTo Install the Adapter Installing the Adapter Without Dynamic ReconfigurationSave the filler panel screw for Step 1Connecting the Fiber Optic Cable To Verify the Installation 2Cat-5 Twisted-Pair CableOk show-nets List the network devices on your systemOk cd /pci@1f,0/pci@1/network@4 View the.properties file for a list of device properties Ok .propertiesPhy-typewill have its value assigned as follows Setting the local-mac-addressPropertyOk setenv local-mac-address? true Ok setenv boot-device /pci@1f,2000/pci@1/network@4 Rebooting the SystemOk boot -r Installing the Adapter With Dynamic Reconfiguration To Install an Adapter in a Dynamic Reconfiguration SystemStates and conditions should be # cfgadm# cfgadm -c disconnect sysctrl#slot# # cfgadm -v -c configure sysctrl#slot## cfgadm -c disconnect sysctrl03 Configure the adapter and slot Reconfigure the devices on the adapter# drvconfig devlinks disks ports tapes Connect the adapter and slotPage Configuring the Network Host Files Use the ifconfig command to setup the adapter’s ce interface# ifconfig ce0 plumb ipaddress up # cat /etc/hosts To Set Up a GigaSwift Ethernet Port on a Diskless ClientExport/root/clientname Edit the hosts in the diskless client’s root directory Network Configuration Find the root directory of the client system # grep clientname /etc/bootparams# cd /cdrom/cdrom0/GigaSwiftEthernet/Packages # ls SUNWce Shut down and halt the client system Use the shutdown command to display the OpenBoot ok prompt# shutdown -i0 -g0 -y Ok boot /pci@1f,4000/network@4speed=100,duplex=full Proceed with the Solaris operating environment installation# pkginfo grep SUNWce Booting Over the GigaSwift Ethernet Network Ok boot device-pathspeed=s,duplex=d,link-clock=c,promiscuous1Device Link Parameters 2link-clockCapabilities for Link Up# boot netspeed=1000,duplex=full,link-clock=master # boot netspeed=100,duplex=full# boot netspeed=1000,duplex=auto,link-clock=auto Page Configuring Driver Parameters GigaSwift Ethernet Device Driver ParametersDriver Parameter Values and Definitions 1ce Driver Parameter, Status, and DescriptionsOperational Mode Parameters Operational Mode Parameters2Operational Mode Parameters Flow Control Parameters3provides flow control keywords and describes their function 3Read-Write Flow Control Keyword DescriptionsGigabit Link Clock Mastership Controls 4Forced Mode ParameterInterpacket Gap Parameters 5Parameters Defining enable-ipg0and ipg0 7describes the receive interrupt blanking values Interrupt Parameters7RX Blanking Register for Alias Read Random Early Drop Parameters 8RX Random Early Detecting 8-Bit VectorsPCI Bus Interface Parameters 9PCI Bus Interface ParametersSetting ce Driver Parameters Setting Parameters Using the ndd UtilityTo Specify Device Instances for the ndd Utility Use the instance number to select the deviceDevice remains selected until you change the selection # ndd -set /dev/ce instance instance#To modify a parameter value, use the -setoption Ndd utility then prompts you for the name of the parameter# ndd -set /dev/ce parameter value # ndd /dev/ce parameterSetting the Autonegotiation Mode Set the adv-autoneg-capparameter to Setting Parameters Using the ce.conf File# ndd -set /dev/ce adv-autoneg-cap Second line in the previous example To Set Driver Parameters Using a ce.conf File# grep ce /etc/pathtoinst Usability Enhancements to the Driver Third line in the previous exampleSave the ce.conf file # ndd -set /dev/hme instanceGigaSwift Ethernet Driver Operating Statistics Then you had to get the link status# ndd -get /dev/hme link-status # kstat cen grep linkup10Read-Only ce Device Capabilities 11describes the read-only link partner capabilities Reporting the Link Partner Capabilities11Read-Only Link Partner Capabilities 12describes the netstat -k transmit and receive parameters 12Transmit and Receive Parameters12Transmit and Receive Parameters # netstat -k ce0 Code Example 4-1Output from kstat Command# kstat Ce0 # kstat ce0 # kstat ce0 Use the kstat command to discover link partner capabilities # kstat ce0 grep lpUse the kstat command to discover link settings # kstat ce0 grep linkPage Configuring VLANs An Overview of VLANs1shows an example network that uses VLANs Configuring VLANs To Configure Static VLANs Vlan logical PPA = 1000 * VID + Device PPA# ifconfig ce123000 plumb up # ifconfig ce224000 plumb up # ifconfig -aPage Connectors Table A-1SC Connector Link Characteristics Ieee P802.3zTable A-2Cat-5 Connector Link Characteristics Performance SpecificationsTable A-3Performance Sepcifications Power Requirements Physical CharacteristicsTable A-5Power Requirements Page Diagnostic Software Troubleshooting Issues SunVTS Diagnostic SoftwareUsing the OpenBoot Prom FCode Self- Test Running the Ethernet FCode Self-Test DiagnosticReset the system Shut down the systemType show-netsto display the list of devices Ok setenv diag-switch? falseOk test /pci@1f,0/pci@1/network@4 Troubleshooting Issues Set the auto-boot?configuration parameter to trueReset and reboot the system Ok setenv auto-boot? trueType the following to apply and save your changes Adv-pause-capNon-Specific Issues Failure to Configure GigaSwift Ethernet InstanceTable B-1Troubleshooting the GigaSwift Ethernet Adapter Problem with DR Attach on Sun Enterprise Platforms Reboot systemAdd the following lines to the /etc/system file Set drdetachsafelist1=ce set hswpsuspendsafelist1=cePage Symbols Index