Setting Values For Optional Properties - Dell Broadcom NetXtreme Family of Adapters User Manual

Linux Driver Software: Broadcom NetXtreme II Network Adapter User Guide
drivers for other Linux versions can be compiled by modifying the Makefile and the make environment. Further information is
available from the Red Hat website, http://www.redhat.com.

Setting Values for Optional Properties

Optional properties exist for the different drivers:
bnx2 Driver
bnx2x Driver
bnx2i Driver
bnx2 Driver
disable_msi
The disable_msi optional property can be supplied as a command line argument to the insmod or modprobe command. The
property can also be set in modprobe.conf. See the man page for more information. All other driver settings can be queried
and changed using the ethtool utility. See the ethtool man page for more information. The ethtool settings do not persist
across a reboot or module reload. The ethtool commands can be put in a startup script such as /etc/rc.local to preserve the
settings across a reboot.
NOTE: Some combinations of property values may conflict and result in failures. The driver cannot detect all such
conflicting combinations.
This property is used to disable Message Signal Interrupts (MSI), and the property is valid only on 2.6 kernels that support
MSI. By default, the driver enables MSI if it is supported by the kernel. It runs an interrupt test during initialization to
determine if MSI is working. If the test passes, the driver enables MSI. Otherwise, it uses legacy INTx mode.
insmod bnx2.ko disable_msi=1
or
modprobe bnx2 disable_msi=1
bnx2x Driver
disable_tpa
The disable_tpa parameter can be supplied as a command line argument to disable the Transparent Packet Aggregation
(TPA) feature. By default, the driver will aggregate TCP packets. Use disable_tpa to disable the advanced TPA feature.
Set the disable_tpa parameter to 1 as shown below to disable the TPA feature on all NetXtreme II network adapters in the
system. The parameter can also be set in modprobe.conf. See the man page for more information.
insmod bnx2x.ko disable_tpa=1
or
modprobe bnx2x disable_tpa=1
int_mode
The int_mode parameter is used to force using an interrupt mode.
Set the int_mode parameter to 1 to force using the legacy INTx mode on all NetXtreme II adapters in the system.
insmod bnx2x.ko int_mode=1
or
modprobe bnx2x int_mode=1
Set the int_mode parameter to 2 to force using MSI mode on all NetXtreme II adapters in the system.
insmod bnx2x.ko int_mode=2
or
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