10GigEthr-02 (iexgbe) B.11.31.1203.01 Ethernet Driver Release Notes

ManualsBrandsHP ManualsNetwork HardwareHP-UX 11i v3 I/O Cards

Table 1 10GigEthr-02 flow control and Jumbo Frames support matrix

Tx flow controlRx flow controlMTU

ON/OFFON/OFF1500 (non-Flex-10 ports)

Default setting during driver

initialization before startup config

parameters are applied will be: OFF

Default setting during driver

initialization before startup config

parameters are applied will be: OFF

ON/OFFOFF only.

NOTE: Rx flow control cannot be set

to ON if Jumbo Frames (MTU value

greater than 1500) are enabled.

Jumbo frames cannot be enabled if Rx

flow control is set to ON.

9000 (non-Flex-10 ports)

Only OFFOnly OFF1500 (Flex-10 ports)

Only OFFOnly OFF9000 (Flex-10 ports)

For Flex-10 interfaces, both Rx and Tx flow control are always set to OFF. There is no provision to

turn on flow control in this case.

For non-Flex-10 interfaces, the flow control can be turned on using nwmgr. However, if Jumbo

MTU is enabled, Rx flow control cannot be turned on; and if Rx flow control is turned on, Jumbo

MTU cannot be enabled.

Table 2 (page 4) lists new configuration parameters for non-Flex-10 interfaces. These parameters

are added to the configuration file /etc/rc.config.d/hpiexgbeconf at installation if the

file has not been previously modified by the customer. If the file has been previously modified, the

configuration file is not automatically modified with the new parameters, and the configuration file

must be updated manually. The new version will be available in file

usr/newconfig/etc/rc.config.d/hpiexgbeconf.

Table 2 Configuration parameters for non-Flex-10 interfaces

DefaultValid valuesFunctionCommand

OFFON/OFFEnable or Disable the

card's Tx side flow control

HP_IEXGBE_TX_FLOW_CONTROL

OFFON/OFFEnable or Disable the

card's Rx side flow control

HP_IEXGBE_RX_FLOW_CONTROL

NOTE: If you reset certain iexgbe attributes (such as mac, mtu, or vmtu), the iexgbe driver

might automatically disable Tx and Rx flow control. For more information, see Section 4 (page 5).

2.2 Changed features

The iexgbe driver has been enhanced with performance and stability improvements.

3 Problems fixed in this version

Table 3 HP-UX 11i v3 March 2012 Fixes — 10GigEthr-02 B.11.31.1203.01

DescriptionSR number

Disables flow control by default. This removes the possibility of bringing up issues introduced

with the B.11.31.1201 release (QXCR1001093086). For more information about the issues,

see Section 4 (page 5).

QXCR1001192266