Sun Microsystems Ethernet PCI-X Adapter Valid Range 0-3 0=none, 1=Rx only, 2=Tx only, 3=Rx&Tx

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TABLE D-1lists the tunable ixge driver parameters for Linux operating systems, and describes their function.

TABLE D-1Tunable ixge Driver Parameters for Linux Operating Systems

Keyword

Description

 

 

FlowControl

Valid Range: 0-3 (0=none, 1=Rx only, 2=Tx only, 3=Rx&Tx)

 

Default: Read from the EEPROM

 

If EEPROM is not detected, default is 3.

 

This parameter controls the automatic generation (Tx) and response

 

(Rx) to Ethernet PAUSE frames.

RxDescriptiors

Valid Range: 64-4096

 

Default Value: 1024

 

This value is the number of receive descriptors allocated by the driver.

 

Increasing this value allows the driver to buffer more incoming packets.

 

Each descriptor is 16 bytes. A receive buffer is also allocated for each

 

descriptor and can be either 2048, 4056, 8192, or 16384 bytes, depending

 

on the MTU setting. When the MTU size is 1500 or less, the receive

 

buffer size is 2048 bytes. When the MTU is greater than 1500 the receive

 

buffer size will be either 4056, 8192, or 16384 bytes. The maximum MTU

 

size is 16114.

RxIntDelay

Valid Range: 0-65535 (0=off)

 

Default Value: 72

 

This value delays the generation of receive interrupts in units of 0.8192

 

microseconds. Receive interrupt reduction can improve CPU efficiency

 

if properly tuned for specific network traffic. Increasing this value adds

 

extra latency to frame reception and can end up decreasing the

 

throughput of TCP traffic. If the system is reporting dropped receives,

 

this value may be set too high, causing the driver to run out of available

 

receive descriptors.

TxDescriptors

Valid Range: 64-4096

 

Default Value: 256

 

This value is the number of transmit descriptors allocated by the driver.

 

Increasing this value allows the driver to queue more transmits. Each

 

descriptor is 16 bytes.

XsumRX

Valid Range: 0-1

 

Default Value: 1

 

A value of 1 indicates that the driver should enable IP checksum offload

 

for received packets (both UDP and TCP) to the adapter hardware.

 

 

58 Sun 10-Gigabit Ethernet PCI-X Adapter Installation and User’s Guide • December 2005

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Contents Sun Microsystems, Inc Please Recycle Contents Configuring VLANs SpecificationsIndex Diagnostic SoftwareInstalling the Software Manually Page Tables Accept-jumbo ParametersPage Figures Page USA-FCC Class a European UnionPage Preface How This Book Is OrganizedUsing Unix Commands Shell PromptsThird-Party Web Sites Accessing Sun DocumentationTypographic Conventions Contacting Sun Technical Support Sun Welcomes Your CommentsProduct Overview Product DescriptionHardware and Software Requirements 1Hardware and Software Requirements for Sun Sparc ServersFeatures 2Sun 10-Gigabit Ethernet PCI-X Adapter Fiber Optic ChannelsPage Installing the Adapter Installing the Adapter Without Dynamic ReconfigurationTo Install the Adapter Insert the adapter into the PCI openingTo Install the Optical Transceiver Page Cd /pci@9,600000/ethernet@1 To Verify the Hardware InstallationOk show-devs View the .properties file for a list of device properties Rebooting the SystemOk boot -r Ok cd /pci@9,600000/ethernet@1 Ok .propertiesTo Install the Software Using the Installation Script Installing the Adapter With Dynamic ReconfigurationUsing the Installation Script Code Example 2-1Typical Install Script Output Execute the installation script# ./install # mount -F hsfs -o ro /dev/dsk/c0t6d0s2 /cdrom/cdrom0Code Example 2-1Typical Install Script Output # reboot -r Verifying the Software InstallationReboot the system to load the driver # modinfo grep Ixge# grep ixge /etc/pathtoinst /pci@9,600000/ethernet@1 0 ixge Configuring the Network Host Files# ifconfig ixge0 plumb ip-addressup Ifconfig ethnumber down ifconfig ethnumber up # cat /etc/hosts # Internet host table Localhost Zardoz Loghost Zardoz-11Page Configuring Driver Parameters Gigabit Ethernet Device Driver Parameters1ixge Driver Parameter, Status, and Descriptions Gigabit Ethernet Driver Parameter Values and DefinitionsFlow Control Parameters 3RX Blanking Register for Alias Read Interrupt Parameters2Read-Write Flow Control Keyword Descriptions Plumb the interface up Jumbo FramesSet the instance to accept jumbo frames Setting Parameters Using the ndd Utility Setting ixge Driver ParametersTo Configure Jumbo Frames in a Linux Environment # ndd -set /dev/ixge instance number To Specify Device Instances for the ndd UtilityUse the instance number to select the device # ndd /dev/ixge parameter To modify a parameter value, use the -setoption# ndd -set /dev/ixge parameter value # ndd /dev/ixgeMan prtconf Setting Parameters Using the ixge.conf File# ndd -get /dev/ixge \? To Set Driver Parameters Using a ixge.conf File # grep ixge /etc/driveraliases ixge pci8086,1048.108e.7036Set the parameters for the above devices Save the ixge.conf fileGigabitEthernet Driver Operating Statistics 5Read-Only ixge Device Capabilities6describes the kstat ixge1 receive and transmit parameters 6Receive and Transmit ParametersTxmsgdupfail Code Example 3-1Output from kstat Command # kstat ixge1Code Example 3-1Output from kstat Command Use the kstat command to discover device capabilities # kstat ixge1 grep cap# kstat ixge0 grep macmtu Use the kstat command to discover link settings# kstat ixge1 grep link Page Configuring VLANs Overview of VLANs1shows an example network that uses VLANs Configuring VLANs To Configure Static VLANs 2Ethernet Tag Header Format# ifconfig ixge123000 plumb up # ifconfig ixge4000 plumb up # ifconfig -aPage Specifications Table A-1Performance SpecificationsPhysical Characteristics Table A-2Physical CharacteristicsDiagnostic Software SunVTS Diagnostic SoftwareTable B-1SunVTS Documentation To Update SunVTS to Recognize the AdapterUpdating SunVTS to Recognize the Adapter Using the SunVTS netlbtest To Use the netlbtestPage Installing the Software Manually To Install the Driver Software ManuallyTable C-1Files and Directories on the CD-ROM # showrev -p grep# /usr/bin/pkginfo SUNWvld SUNWvldx Install the patchCheck to see if vlan drivers are installed on the system Select the packages you want to install # pkgadd -d /Solaris9/i386/PackagesBuild the 10-Gigabit Ethernet driver Setting Up the Driver in a Linux PlatformTo Set Up the Driver in a Linux Platform Load ixge driver for all instances Build the man pages optionalChange to the rpm directory # lsmod Verify that the driver is loadedAdd the ixge interfaces to the /etc/modules.conf file # dmesgSetting Driver Parameters in a Linux Environment # ethtool eth3# rmmod ixge To Set ixge Parameters in a Linux EnvironmentLoad the Sun 10-Gigabit Ethernet PCI-X device driver # modprobe ixge option=VAL1, VAL2Valid Range 0-3 0=none, 1=Rx only, 2=Tx only, 3=Rx&Tx Ensure that the ixge module is loaded To Configure VLANs in a Linux EnvironmentConfigure ixge vlan eth2 in this example Insert the vlan moduleModify /etc/modules.conf file by adding these lines To Configure Bonding for Multiple ixge InterfacesConfigure bond0 interface Load the bonding driverIndex Vlan ID

Ethernet PCI-X Adapter specifications

The Sun Microsystems Ethernet PCI-X Adapter stands as a pivotal component for enhancing network performance in various computing environments. Designed to cater to the demanding needs of enterprise networks, this adapter provides a seamless integration of high-speed connectivity with robust hardware design, making it a preferred choice for businesses relying on Sun systems.

One of the standout features of the Sun Ethernet PCI-X Adapter is its adherence to the PCI-X interface, which allows for faster data transfer rates compared to traditional PCI. With speeds of up to 1 Gbps, this adapter supports larger data throughput, significantly improving the efficiency of data-intensive applications. The PCI-X standard, operating at an impressive 64-bit bus, not only enhances performance but also ensures backward compatibility with earlier PCI standards, offering flexibility in deployment.

In terms of network connectivity, the adapter supports both 10/100/1000 Mbps Ethernet speeds, allowing it to automatically negotiate the best speed based on network conditions. This feature is particularly advantageous for enterprises with diverse networking equipment, enabling seamless integration without compromising on performance.

The Sun Microsystems Ethernet PCI-X Adapter comes equipped with advanced technologies such as Jumbo Frames support. This allows for the transmission of larger packets over the network, which is beneficial for applications that require the movement of substantial amounts of data, like video streaming or large file transfers. By facilitating Jumbo Frames, the adapter minimizes CPU load and enhances overall throughput, leading to better resource utilization.

Another noteworthy characteristic of this adapter is its robust error checking and correction capabilities. This ensures data integrity during transmission, reducing the likelihood of packet loss and improving the reliability of network communications. Coupled with support for multiple protocols, including TCP/IP, the Ethernet PCI-X Adapter provides versatility, adapting to various network configurations and applications.

Furthermore, the adapter boasts a high-performance driver suite, which enhances its compatibility across different operating systems, ensuring smooth integration into existing network environments. The flexibility and scalability of this adapter make it an ideal solution for current and future network demands.

In conclusion, the Sun Microsystems Ethernet PCI-X Adapter delivers exceptional performance, reliability, and versatility, making it an essential asset for enterprises seeking to enhance their networking capabilities. Whether for upgrading existing infrastructure or supporting new applications, this adapter stands out as a dependable choice for high-speed connectivity in the constantly evolving technology landscape.
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