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Sun Microsystems 10GBE XFP 2. To change RX interrupt Coalesce parameters use the ethtool -C command:, 3. To get status of L4 HW checksumming, use the ethtool -k command:

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Chapter 5 Configuring thenxge Device Driver Parameters 49

2. To change RX interrupt Coalesce parameters use the ethtool -C command:3. To get status of L4 HW checksumming, use the ethtool -k command:

#ethtool -C eth4 rx-usecs 20

#ethtool -c eth4

Coalesce parameters for eth4:

Adaptive RX: off TX: off

stats-block-usecs: 0

sample-interval: 0

pkt-rate-low: 0

pkt-rate-high: 0

rx-usecs: 20

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

#ethtool -k eth4

Offload parameters for eth4:

Cannot get device tcp segmentation offload settings: Operation not

supported

rx-checksumming: on

tx-checksumming: on

scatter-gather: off

tcp segmentation offload: off

Contents

Main Please Recycle Contents Page Page Page Tables Page Figures Page Declaration of Conformity EMC USAFCC Class A European Union This equipment complies with the following requirementsof the EMC Directive 89/336/EEC: Page Preface Note How This Document Is Organized Using UNIX Commands Shell Prompts Typographic Conventions Related Documentation Documentation, Support, and Training Third-Party WebSites Page Page Product Overview Components Product Description Hardware and Software Requirements Features Page Installing and Setting Up the Driver Downloading and Installing the Driver on a Solaris SPARC or x86 Platform To Download the Driver on a Solaris Platform Page Page 7. Verify that the nxge driver is installed on the system: To Remove the Driver from a Solaris Platform Downloading and Installing the Driver on a Linux Platform Note 7. Use the ethtool command to check the parameter configurations that apply to the nxge driver. To Remove the Driver From a Linux Platform Page Installing the Adapter Note Installing the Adapter Caution Note To Install the Adapter Page Page Note Installing an Optical Transceiver To Install an Optical Transceiver Note Page Verifyingthe Hardware Installation Note To Verify the Hardware Installation Note Page Page Network Configuration Configuring the Network Host Files Page Setting Up a 10-Gigabit Ethernet Network on a Diskless Client System Note To Set Up a 10-Gigabit Ethernet Port on a Diskless Client Installing the Solaris Operating System Over a 10-Gigabit Ethernet Network Note To Install the Solaris Operating System Over a 10-Gigabit Ethernet Network Note Page Page Booting Over the 10-Gigabit Ethernet Network for Solaris x86 and Linux Systems To Boot Over the Network on Solaris x86 and Linux Systems Page Page Page Configuring the nxge Device Driver Parameters nxge Hardware and Software Overview Setting nxge Driver Parameters on a Solaris Platform Setting Parameters Using the ndd Utility Noninteractive and Interactive Modes To Specify Device Instances for the ndd Utility To Specify Parameter Values Using the ndd Utility To Use the ndd Utility in Interactive Mode Setting Parameters Using the nxge.conf File To Set Driver Parameters Using an nxge.conf File Page Page Page Tuning for Maximum Performance on a Solaris Platform To Improve Performance on an UltraSPARC CPU Based Sun Platform To ImprovePerformance on an AMD CPU Based Sun Platform Page Setting Parameters on a Linux Platform To Set Parameters Using the ethtool Utility 1. Determine which parameters are available using the ethtool utility: Page Page 2. To change RX interrupt Coalesce parameters use the ethtool -C command: 3. To get status of L4 HW checksumming, use the ethtool -k command: To Set Parameters Using the Bundled configtool Utility Note 3. Toset a particular variable, use the /usr/local/bin/nxge_config if_name set param_name value: Tuning for Maximum Performance on a Linux Platform Page Configuring the Jumbo Frames Feature Jumbo Frames Overview Note Checking Jumbo Frames Configurations To Show the Driver Statistics in a Solaris 2. Use the kstat command to display driver statistics of a VLAN interface, for example:. Enabling Jumbo Frames in a Solaris This section describes how to enable jumbo frames in both a SPARCand an x86 environment. To Enable Jumbo Frames in a Solaris Environment Using nxge.conf To Check Layer 2 Configuration To Check Layer 3 Configuration Enabling Jumbo Frames in a Linux To Enable Jumbo Frames in a Linux To Show the Driver Statistics in a Linux 3. To get more specific statitics, use the grep command on the output of ethtool -S: Page Configuring Link Aggregation Overview of Link Aggregation Configuring Link Aggregation in a Solaris Environment To Configure Link Aggregation in a Solaris 2. Plumb up the interface aggrkey, which is aggr33 is this case: 3. Show link-aggregation status again, and now the state should become attached: 4. Use the dladm show-aggr -scommand to display statistics: Configuring Link Aggregation in a Linux Environment To Configure Bonding for Multiple nxge Interfaces Page Page Configuring VLANs Overview of VLANs Page Configuring VLANs in a Solaris Note To Configure Static VLANs Configuring VLANs in a Linux To Configure VLANs in a Linux Environment Page Specifications Connectors 10 Gigabit Ethernet Fiber XFP Low ProfileAdapter. Performance Specifications Physical Characteristics Power Requirements Page Diagnostic Software SunVTS Diagnostic Software Note Updating SunVTS to Recognize the Adapter To Update SunVTS to Recognize the Adapter Using the SunVTS netlbtest To Use the netlbtest Page Index