6–Linux Driver Software
Setting Values for Optional Properties
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disable_tpa
Use the optional parameter
disable_tpa
to disable the transparent packet
aggregation (TPA) feature. By default, the driver aggregates TCP packets.
To disable the TPA feature on all 8400/3400 Series Adaptersnetwork adapters in
the system, set the
disable_tpa
parameter to
1
:
insmod bnx2x.ko disable_tpa=1
or
modprobe bnx2x disable_tpa=1
dropless_fc
The
dropless_fc
parameter is set to
1
(by default) to enable a
complementary flow control mechanism on 8400/3400 Series Adapters. The
normal flow control mechanism is to send pause frames when the on-chip buffer
(BRB) is reaching a specific level of occupancy, which is a performance-targeted
flow control mechanism. On 8400/3400 Series Adapters, you can enable a
complementary flow control mechanism to send pause frames when one or more
of the host receive buffers are exhausted.
dropless_fc
is a “zero packet drop” targeted flow control mechanism.
Set the
dropless_fc
parameter to
1
to enable the drop-less flow control
mechanism feature on all 8400/3400 Series Adapters in the system.
insmod bnx2x.ko dropless_fc=1
or
modprobe bnx2x dropless_fc=1
disable_iscsi_ooo
Use the
disable_iscsi_ooo
parameter to disable the allocation of the iSCSI
TCP out-of-order (OoO) reception resources, specifically for VMware for
low-memory systems.
