Users Guide

8–VMware Driver Software
Driver Parameters
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dropless_fc
The dropless_fc parameter is set to 1 (by default) to enable a complementary
flow control mechanism on BCM57xxx 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 BCM57xxx 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 BCM57xxx adapters in the system.
vmkload_mod bnx2x dropless_fc=1
autogreen
The autogreen parameter forces the specific AutoGrEEEN behavior.
AutoGrEEEn is a proprietary, pre-IEEE standard Energy Efficient Ethernet (EEE)
mode supported by some 1000BASE-T and 10GBASE-T RJ45 interfaced
switches.
By default, the driver uses the NVRAM configuration settings per port. When this
module parameter is set, it can override the NVRAM configuration settings to
force AutoGrEEEN to either the active (
1) or inactive (2) state. The default value
of
0 sets the port to use the NVRAM settings.
native_eee
The native_eee parameter can force specific IEEE 802.3az Energy Efficient
Ethernet (EEE) behavior, which is supported on some 1000BASE-T and
10GBASE-T RJ45 interfaced switches.
By default, the driver uses the NVRAM configuration settings per port. If this
parameter is set, it can force EEE to be enabled, and the value will be used as the
idle time (
1–FFFFFh or 1,048,575) required before entering transmit LPI.
Set
native_eee to -1 to forcefully disable EEE. Set native_eee to 0 (default)
to use the NVRAM settings.
num_queues
The num_queues parameter forces the number of RSS queues and overrides the
default value, which is equal to number of CPU cores.