Users Guide

8–VMware Driver Software
Driver Parameters
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qfle3i Driver Parameters
For a list of qlfe3i driver parameters, issue one of the following commands:
# esxcli system module parameters list -m qfle3i
# esxcfg-module -i qfle3i
To change a parameter’s value, issue one of the following commands:
#esxcli system module parameters set -m qfle3i -p <param>=<value>
#esxcfg-module -s <parameter>=<value> qfle3i
qfle3i_chip_cmd_max
The qlfe3i_chip_cmd_max parameter sets the maximum I/Os queued to the
BCM57xx and BCM57xxx adapters. The default is 24.
qfle3i_esx_mtu_max
The qfle3i_esx_mtu_max parameter sets the maximum MTU size supported
for offload sessions. Valid values are in the range of 1500–9000. The default
is 9000.
qfle3i_max_sectors
The qfle3i_max_sectors parameter sets the maximum sectors supported by
the driver. Valid values are in the range of 64–256. Set this parameter to –1 for
default values of 256 (10Gb) and 127 for 1Gb.
qfle3i_max_task_pgs
The qfle3i_max_task_pgs parameter sets the maximum number of pages
(per connection) for iSCSI tasks. Valid values are in the range of 2–8. The default
value is 2.
qfle3i_nopout_when_cmds_active
The qfle3i_nopout_when_cmds_active parameter sends an iSCSI NOP
Out PDU even when the connection is active (not idle). Valid values are in the
range of 2–8. The default value is 1.
cmd_cmpl_per_work
The qfle3i_cmd_cmpl_per_work parameter sets the number of command
queue entries (CQEs) processed per work. The default value is 256.
en_hba_poll
The en_hba_poll parameter sets the adapter poll timer. The default value
is 0.
en_tcp_dack
The en_tcp_dack parameter enables TCP delayed ACK. Enabling TCP
delayed ACK helps improve network performance by combining several ACKs in
a single response. The default value is 1 (enabled).