What’s in this Version

The following information is for the GigEther-00 (gelan) Gigabit Ethernet Driver for HP-UX 11i v 2 of December 2005. The gelan driver supports Gigabit Ethernet cards such as:

A4929A PCI GigE Base-T,
A4926A PCI GigE Base-SX.

You can check to see if this driver is present on your system by running the commands described in ““How to Verify that the Correct Driver is in the Kernel”” in this document.

The HP-UX 11i v 2 release of December 2005 provides the following new gelan Gigabit Ethernet Driver feature:

Ability to turn on or off the receive and send sides of the card’s Checksum Offload (CKO). See details in the following section of this document.
Improvements and fixes listed in “Fixes in this Version”.

Checksum Offload Changes for the gelan Gigabit Ethernet Driver

Beginning with the HP-UX 11i v1 and v2 OE release of May 2005, the gelan gigabit Ethernet networking driver allows you to turn the CKO feature of the gigabit Ethernet interface ON or OFF. With this and subsequent versions of the gelan driver:

The default for receive side CKO is OFF (disabled). Prior to the May 2005 release, the receive side CKO was ON (enabled). This setting can be restored as explained in the examples that follow.
The default for the send side is CKO ON (enabled) -- the same setting as on prior releases.

Example settings for gelan driver:

Recommended: To set the CKO options permanently (so they’re saved across reboots), edit the following values in the /etc/rc.config.d/hpgelanconf file:

HP_GELAN_SEND_CKO and
HP_GELAN_RECV_CKO and set them to ON or OFF

To determine the current CKO settings, enter the following command:

lanadmin -x cko ppa

Optional: If desired, you can also use the lanadmin -X command to temporarily set these values; but if you use the lanadmin command, your settings will not be saved across a reboot. The exact lanadmin commands are as follows (note that the -X is capitalized in these commands):

lanadmin -X send_cko_on ppa lanadmin -X recv_cko_on ppa

Please refer to the lanadmin man page for details of these CKO options.

The HP-UX 11i v 2 release of December 2005 provides the following new gelan Gigabit Ethernet Driver fixes:

The Gigabit Ethernet cards listed in the first part of this section are supported on the December 2005 release of HP-UX 11i v 2 on specified HP-UX PA-RISC and Itanium®/Itanium®2-based Servers and Itanium®/Itanium®2-based Workstations. The HP-UX 11i v 2 release of December 2005 is not for PA-RISC-based workstations. For the most up-to-date list of network cards and the systems that they work on, check the Card, Driver, Version matrix on http://docs.hp.com under “I/O Cards and Networking Software,” or ask your sales representative.

What’s in this Version

Technical documentation

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Checksum Offload Changes for the gelan Gigabit Ethernet Driver