0GigEthr-02 (iexgbe) B.11.31.1205 Ethernet Driver Release Notes HP-UX 11i v3 Abstract This document contains specific information that is intended for users of this HP product.
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1 10GigEthr-02 overview The 10GigEthr-02 bundle contains the PCIe 10 Gigabit Ethernet iexgbe driver.
• Receive Side Scaling (RSS) with TCP • TCP segment reassembly in driver • Jumbo MTUs • Multicast and Promiscuous mode • IPv6 • IEEE 802.
2 New and changed features in this release 2.1 New features There are no new features in this version of 10GigEthr-02. 2.2 Changed features The iexgbe driver has been enhanced with performance and stability improvements. In addition, Tx and Rx flow control are now enabled by default. This flow control feature (which is optional) has certain limitations documented in Section 4 (page 8). Table 1 (page 6) lists the Rx and Tx flow control settings and defaults, as determined by the MTU setting.
Table 1 10GigEthr-02 flow control and Jumbo Frames support matrix MTU Rx flow control Tx flow control 1500 (non-Flex-10 ports) ON/OFF ON/OFF Default setting during driver initialization before startup config parameters are applied will be: ON Default setting during driver initialization before startup configuration parameters are applied will be: ON 9000 (non-Flex-10 ports) OFF only. ON/OFF Default setting during driver NOTE: initialization before startup 1.
lan3 current values: New Transmit Flow Control = Off • Attempting to turn on Rx flow control for a Flex-10 interface on which the MTU size is greater than 1500 (enabling Jumbo Frames) brings up the warning message shown in the following example. The Rx flow control cannot be turned on in this instance, so the specified value (on) is invalid; Rx flow control remains turned off.
4 Known problems and limitations The following problems and limitations are known to exist in version B.11.31.1205: • Rx flow control must be disabled when Jumbo Frames are used. Due to limitations of the hardware supported by the iexgbe driver, Rx flow control must be disabled when Jumbo Frames (MTU value greater than 1500) are enabled. This limitation is enforced by the iexgbe driver.
Table 7 System component minimum version requirements System component Minimum version required HP Integrity BL860c hardware revision B HP Integrity BL860c system firmware 4.21 HP Integrity BL870c system firmware 4.21 HP Integrity BL8x0c i2 system firmware HP Integrity Superdome 2 system firmware Use the latest system firmware. For information on how to obtain and install system firmware, see the server documentation. HP Onboard Administrator firmware 3.
