Users Guide

Table Of Contents
16–SR-IOV
Enabling SR-IOV
Doc No. BC0054508-00 Rev. R
January 21, 2021 Page 247 Copyright © 2021 Marvell
Enabling SR-IOV
Before attempting to enable SR-IOV, ensure that:
The adapter hardware supports SR-IOV.
SR-IOV is supported and enabled in the system BIOS.
Configure NPAR mode (if using).
To enable SR-IOV:
1. Enable the feature on the adapter using either QCC GUI, QCS CLI, QCC
PowerKit, Dell pre-boot UEFI, or pre-boot CCM.
If using Windows QCC GUI:
a. Select the network adapter in the Explorer View pane. Click the
Configuration tab and select SR-IOV Global Enable.
b. In the SR-IOV VFs per PF box, configure the quantity of SR-IOV
virtual functions (VFs) that the adapter can support per physical
function, from 0 to 64 (57810/57800) or 32 (57840) in increments of 8
(default = 16).
In NPAR mode, the total VFs that can be enabled over all of the
partitions of a single 578xx port is limited to either 64 (dual-port 57810)
or 32 (quad-port 57840). The 2x10G + 2x1G 57800 adapter supports
up to 64 VFs only on the two 10G ports. Be sure to configure NPAR
before configuring SR-IOV.
c. In the SR-IOV Max Chains per VF box, configure the maximum
quantity of transmit and receive queues (such as receive side scaling
(RSS) queues) that can be used for each virtual function. The
maximum is 16.
If using pre-boot UEFI:
a. During power up, press F2 at the prompt to enter the Dell System
Setup.
b. Select the Device Settings menu.
c. Select the SR-IOV-capable adapter port from the Device Settings
menu.
d. Select the Device Level Configuration Menu on the Main
Configuration Page.
e. In the Virtualization Mode list, select SR-IOV or NPar+SR-IOV (if you
want SR-IOV-over-NPAR mode) control.