Disabling Virtual MTU and offload features including Transmit/Receive CKO

[Yaboto]

Hi,

I try to disable offload features (including disabling Transmit/Receive CKOs) and Virtual MTU from SMH TUI in HP-UX 11.31, but the changes could not apply.

Please help with some alternate ways to do this.

Thanks

Yaboto

[Dave Olker]

You could modify the appropriate configuration parameters in the associated config file in the /etc/rc.config.d directory:

# ll /etc/rc.config.d/hp*conf
-r--r--r-- 1 bin bin 1339 Feb 15 2007 /etc/rc.config.d/hpbtlanconf
-r--r--r-- 1 bin bin 4496 Dec 15 2008 /etc/rc.config.d/hpgelanconf
-r--r--r-- 1 bin bin 7928 Dec 4 2013 /etc/rc.config.d/hpietherconf
-r--r--r-- 1 bin bin 5074 Jan 22 2014 /etc/rc.config.d/hpiexgbeconf
-r--r--r-- 1 bin bin 5387 Dec 4 2013 /etc/rc.config.d/hpigelanconf
-r--r--r-- 1 bin bin 1462 Jan 13 2014 /etc/rc.config.d/hpigssnconf
-r--r--r-- 1 bin bin 1263 Feb 15 2007 /etc/rc.config.d/hpintl100conf
-r--r--r-- 1 bin bin 5886 Jan 22 2014 /etc/rc.config.d/hpiocxgbeconf
-r--r--r-- 1 bin bin 3975 Dec 9 2012 /etc/rc.config.d/hpiqxgbeconf

Each interface type has their own configuration file, each containing a number of parameters to control the different driver features.  For example:

# grep HP_ /etc/rc.config.d/hpiexgbeconf
# HP_IEXGBE_INTERFACE_NAME Name of interface (lan0, lan1...)
# HP_IEXGBE_STATION_ADDRESS Station address of interface
# HP_IEXGBE_MTU Maximum transmission unit value.
# HP_IEXGBE_VMTU Virtual maximum transmission unit value.
# HP_IEXGBE_TX_TIMER Transmit interrupt timer for transmit interrupt
# HP_IEXGBE_RX_TIMER Receive interrupt timer for receive interrupt
# HP_IEXGBE_TX_CHECKSUM_OFFLOAD Set IPv4 tx checksum offload off/on
# HP_IEXGBE_RX_CHECKSUM_OFFLOAD Set IPv4 rx checksum offload off/on
# HP_IEXGBE_SW_LRO TCP packet reassembly in driver
# HP_IEXGBE_TX_FLOW_CONTROL Enable or Disable the card's Tx side flow control
# HP_IEXGBE_RX_FLOW_CONTROL Enable or Disable the card's Rx side flow control
# HP_IXGBE_MQ Number of Queues

The configuration file contains some comments on each of the parameters.  The release notes for the appropriate network driver likely contains more details if you need them.

Regards,

Dave

[Yaboto]

I was able to do it through SMH on the physical server, but i could not do the same in the VPARs because SAM could not apply those changes within the VPARs.

How would i know exact driver and exact related files i am supposed to update?

Thanks