Users Guide

7–Linux Driver Software
Setting Values for Optional Properties
46 BC0054508-00 J
bnx2i Driver Parameters
Optional parameters en_tcp_dack, error_mask1, and error_mask2 can
be supplied as command line arguments to the insmod or modprobe
command for bnx2i.
error_mask1 and error_mask2
Use Config FW iSCSI Error Mask # to configure a specific iSCSI protocol
violation to be treated either as a warning or a fatal error. All fatal iSCSI protocol
violations will result in session recovery (ERL 0). These are bit masks.
Defaults: All violations are treated as errors.
en_tcp_dack
Enable TCP Delayed ACK enables and disables the TCP delayed ACK feature
on offloaded iSCSI connections.
Defaults: TCP delayed ACK is ENABLED. For example:
insmod bnx2i.ko en_tcp_dack=0
or
modprobe bnx2i en_tcp_dack=0
time_stamps
Enable TCP TimeStamps enables and disables TCP time stamp feature on
offloaded iSCSI connections.
Defaults: TCP time stamp option is DISABLED. For example:
insmod bnx2i.ko time_stamps=1
or
modprobe bnx2i time_stamps=1
CAUTION
Do not use error_mask if you are not sure about the consequences.
These values are to be discussed with the QLogic development team on a
case-by-case basis. This parameter is just a mechanism to work around
iSCSI implementation issues on the target side and without proper
knowledge of iSCSI protocol details, users are advised not to experiment
with these parameters.