Users Guide

Table Of Contents
8–VMware Driver Software
Driver Parameters
Doc No. BC0054508-00 Rev. R
January 21, 2021 Page 75 Copyright © 2021 Marvell
offload_flags
This parameter specifies the offload flags:
rx_filters
The rx_filters parameter defines the number of receive filters per
NetQueue. Set to 1 to use the default number of receive filters based on
availability. Set to 0 to disable use of multiple receive filters. Set to a value in the
range of 1, 2, 3, and so on to force the number of receive filters used for
NetQueue. The default is –1.
rxqueue_nr
The rxqueue_nr parameter sets the number of receive queues. Set to 0
(default) for Auto. Set to a number in the range of 1–8 for the number of fixed
queues. The default is 4 queues.
rxring_bd_nr
The rxring_bd_nr parameter sets the number of receive buffer descriptors
(BDs). The minimum value is 4,096 (default). The maximum value is 16,384.
Values are round up to nearest power of two.
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.
Value
Flag
1CSO
2TSO
4 VXLAN offload
8 Geneve offload
15 Default. All tunneled offloads (CSO, TSO, VXLAN, Geneve)
are enabled.