Driver defaults – Dell Broadcom NetXtreme Family of Adapters User Manual
Page 34
Linux Driver Software: Broadcom NetXtreme II® Network Adapter User Guide
file:///C|/Users/Nalina_N_S/Documents/NetXtremeII/English/linux.htm[9/5/2014 3:45:01 PM]
time_stamps
"Enable TCP TimeStamps", enables/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
sq_size
"Configure SQ size", used to choose send queue size for offloaded connections and SQ size determines the maximum SCSI
commands that can be queued. SQ size also has a bearing on the number of connections that can be offloaded; as QP size
increases, the number of connections supported will decrease. With the default values, the BCM5708 adapter can offload 28
connections.
Defaults: 128
Range: 32 to 128
Note that Broadcom validation is limited to a power of 2; for example, 32, 64, 128.
rq_size
"Configure RQ size", used to choose the size of asynchronous buffer queue size per offloaded connections. RQ size is not
required greater than 16 as it is used to place iSCSI ASYNC/NOP/REJECT messages and SCSI sense data.
Defaults: 16
Range: 16 to 32
Note that Broadcom validation is limited to a power of 2; for example, 16, 32.
event_coal_div
"Event Coalescing Divide Factor", performance tuning parameter used to moderate the rate of interrupt generation by the
iscsi firmware.
Defaults: 1
Valid values: 1, 2, 4, 8
last_active_tcp_port
"Last active TCP port used", status parameter used to indicate the last TCP port number used in the iSCSI offload connection.
Defaults: N/A
Valid values: N/A
Note: This is a read-only parameter.
ooo_enable
"Enable TCP out-of-order feature", enables/disables TCP out-of-order rx handling feature on offloaded iSCSI connections.
Defaults: TCP out-of-order feature is ENABLED. For example:
insmod bnx2i.ko ooo_enable=1
or
modprobe bnx2i ooo_enable=1
Driver Defaults