Oracle Audio Technologies SunDual 10GbE XFP manual

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Following are some common parameters that can be changed:

# ethtool -c eth8

Coalesce parameters for eth8: Adaptive RX: off TX: off stats-block-usecs: 0 sample-interval: 0 pkt-rate-low: 0 pkt-rate-high: 0

rx-usecs: 8

rx-frames: 512

rx-usecs-irq: 0

rx-frames-irq: 512

tx-usecs: 0

tx-frames: 0

tx-usecs-irq: 0

tx-frames-irq: 0

rx-usecs-low: 0

rx-frame-low: 0

tx-usecs-low: 0

tx-frame-low: 0

rx-usecs-high: 0

rx-frame-high: 0

tx-usecs-high: 0

tx-frame--high: 0

rx-usecs and rx-frames control the RX interrupt rate per RX DMA channel. RX interrupt will be generated after rx-frames have been received or after rx-usecs time interval if fewer than rx-frames have been received within the interval. For low latency applications, it is recommended to set rx-usecs to smaller value. For bulk traffic, it is recommended to use larger values of rx-usecs and control the rate with rx-frames.

rx-frames-irq controls the maximum number of rx packets processed with a single RX interrupt.

46 Sun Dual 10GbE XFP PCI Express Card User’s Guide • May 2010

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Contents Sun Dual 10GbE XFP PCI Express Card Please Recycle Contents Network Configuration Configuring the nxge Device Driver ParametersConfiguring VLANs Configuring the Jumbo Frames FeatureConfiguring Link Aggregation Index SpecificationsDiagnostic Software Using This Documentation Using Unix CommandsShell Prompts Documentation Feedback Related DocumentationDocumentation, Support, and Training Sun Dual 10GbE XFP PCI Express Card User’s Guide May Product Description Product OverviewComponents Hardware and Software Requirements 1shows the adapterFeatures Declaration of Conformity EMCDate Sun Dual 10GbE XFP PCI Express Card User’s Guide May Installing and Setting Up the Driver To Download the Driver on a Solaris PlatformUncompress the gzipped tar file Unpack the tar fileFor Sparc systems, change to the following directory For x86 systemsSelect the packages you want to install Verify that the nxge driver is installed on the systemTo discover the driver packages run the pkginfo command To remove the driver packages run the pkgrm command# ifconfig -a grep eth Downloading and Installing the Driver on a Linux PlatformLogin to your system # modprobe nxge # rpm -e nxge-1.0-1 To Remove the Driver From a Linux Platform# ethtool -i eth4 driver nxge version Installing the Adapter Installing the AdapterTo Install the Adapter Installing the Adapter Sun Dual 10GbE XFP PCI Express Card User’s Guide May Installing an Optical Transceiver Install the optical transceiversTo Install an Optical Transceiver Installing the Adapter Verifying the Hardware Installation To Verify the Hardware InstallationConnect the Ethernet cables Ok show-netsOk cd /pci@7c0/pci@0/pci@8/network@0,1 Ok .propertiesOk device-end Rebooting the SystemOk boot -r Network Configuration Configuring the Network Host Files# ifconfig nxge0 plumb ip-addressup # grep nxge /etc/pathtoinst# cat /etc/hosts Export/root/client-name To Set Up a 10-Gigabit Ethernet Port on a Diskless ClientEdit the hosts file in the diskless client’s root directory Network Configuration # grep client-name /etc/bootparams Find the root directory of the client systemProceed with the Solaris Operating System installation Ok boot /pci@7c0/pci@0/pci@8/network@0Shut down and halt the client system # shutdown -i0 -g0 -yTo Boot Over the Network on Solaris x86 and Linux Systems # dladm show-devRefer the boot-device-order image Press the F12 key to install the OS from the network Image pxe-mac-addrConfiguring the nxge Device Driver Parameters Nxge Hardware and Software OverviewNoninteractive and Interactive Modes Setting nxge Driver Parameters on a Solaris PlatformSetting Parameters Using the ndd Utility To modify a parameter value, use the -setoption To Specify Parameter Values Using the ndd UtilityTo Specify Device Instances for the ndd Utility Man prtconf Setting Parameters Using the nxge.conf File# ndd /dev/nxge1 name to get/set ? To Set Driver Parameters Using an nxge.conf File Following parameters can be set usingLocate the path names and the associated instance numbers Set the parameters for the nxge devicesSun Dual 10GbE XFP PCI Express Card User’s Guide May Configuring the nxge Device Driver Parameters Class-opt-ipv4-tcp = 100 class-opt-ipv4-udp = Tuning for Maximum Performance on a Solaris Platform Reboot the system# reboot -r Save the nxge.conf fileSet ddimsixalloclimit=1 To Improve Performance on an AMD CPU Based Sun PlatformSet ipipsqueuefanout=1 set ipsqueuesoftring=1 Configuring the nxge Device Driver Parameters Setting Parameters on a Linux Platform To Set Parameters Using the ethtool UtilityConfiguring the nxge Device Driver Parameters Following are some common parameters that can be changed # ethtool -C eth4 rx-usecs # ethtool -c eth4 # ethtool -k eth4# /usr/local/bin/nxgeconfig eth4 get # /usr/local/bin/nxgeconfig eth4 get classoptipv4udpTuning for Maximum Performance on a Linux Platform # /usr/local/bin/nxgeconfig eth4 set classoptipv4tcp 0xfe0Net.ipv4.tcpsack = Net.core.netdevmaxbacklog =Set up the sysctl utility # sysctl -p /etc/sysctlnxge.confJumbo Frames Overview Configuring the Jumbo Frames FeatureChecking Jumbo Frames Configurations # kstat Nxge38001 To Show the Driver Statistics in a Solaris Environment# kstat nxge1 grep rdcpackets Set the maximum MTU for maximum performance To Check Layer 2 ConfigurationEnabling Jumbo Frames in a Solaris Environment To Check Layer 3 Configuration To Enable Jumbo Frames in a Linux EnvironmentEnsure that the nxge software is installed Enabling Jumbo Frames in a Linux Environment# ifconfig eth4 To Show the Driver Statistics in a Linux EnvironmentSun Dual 10GbE XFP PCI Express Card User’s Guide May Configuring Link Aggregation Overview of Link AggregationConfiguring Link Aggregation in a Solaris Environment To Configure Link Aggregation in a Solaris EnvironmentUse the dladm show-aggr-scommand to display statistics # ifconfig aggr33 plumb# ifconfig aggr33 192.168.1.1/24 broadcast + up # dladm show-aggr -sConfiguring Link Aggregation in a Linux Environment To Configure Bonding for Multiple nxge InterfacesConfigure bond0 interface Load the bonding driverConfiguring VLANs Overview of VLANs1shows an example network that uses VLANs Configuring VLANs in a Solaris Environment To Configure Static VLANs Configuring VLANs in a Linux Environment To Configure VLANs in a Linux Environment# ifconfig -a Ensure that the nxge module is loadedConfigure the nxge Vlan eth2 in this example # /sbin/vconfig add eth2# ifconfig eth2.5 xxx.xxx.xx.xxx up Insert the Vlan moduleSpecifications ConnectorsPerformance Specifications Table A-1XFP Connector CharacteristicsPhysical Characteristics Power RequirementsSun Dual 10GbE XFP PCI Express Card User’s Guide May Diagnostic Software SunVTS Diagnostic SoftwareTo Update SunVTS to Recognize the Adapter Updating SunVTS to Recognize the AdapterUsing the SunVTS netlbtest To Use the netlbtestSun Dual 10GbE XFP PCI Express Card User’s Guide May Symbols IndexSun Dual 10GbE XFP PCI Express Card User’s Guide May