7–VMware Driver Software
Driver Parameters
59
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txqueue_nr
The
txqueue_nr
parameter sets the number of transmit queues. Set to
0
for
Auto. Set to a value in the range of
1–8
for the number of fixed queues. The
default is
4
queues.
txring_bd_nr
The
txring_bd_nr
parameter sets the number of transmit BDs. the minimum
value is
4,096
(default). The maximum value is
16,384
. Values are round up
to nearest power of two.
RSS
The
RSS
parameter sets the number of RSS queues. Set to
0
(default) to allow
VMware to automatically control the number of RSS queues used by VXLAN
tunneled traffic and host traffic. Set to a value in the range of
1–4
to indicate a
fixed queue number.
DRSS
The
DRSS
parameter sets the number of RSS queues associated with the default
queue. The minimum number of RSS queues is
2
; the maximum number is
4
. To
disable this parameter, set it to
0
(default).
This parameter is used for VXLAN gateways, where multiple unknown MAC
addresses may be received by the default queue.
rss_engine_nr
The
rss_engine_nr
parameter sets the number of RSS engines. Valid values
are
0
(Disabled) or
1–4
(fixed number of RSS engines). The default is
4
RSS
engines.
This parameter is supported only on ESX 6.7.
enable_vxlan_filters
The
enable_vxlan_filters
parameter enables and disables the VXLAN
receive filters.
A VXLAN filter comprises the inner MAC address, the outer MAC address, and
the VXLAN Network Identifier (VNI). This filter is used to create NetQueues for a
VXLAN traffic flow.
Set to
0
(default) to disable VXLAN receive filters. Set to
1
to enable VXLAN
receive filters.
