Users Guide

15–SR-IOV
Enabling SR-IOV
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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 (BCM57810/57800) or 32 (BCM57840) in
increments of 8 (default = 16).
In NPAR mode, the total VFs that can be enabled over all of the
partitions of a single BCM578xx port is limited to either 64 (dual-port
BCM57810) or 32 (quad-port BCM57840). The 2x10G + 2x1G
BCM57800 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.
f. If in SR-IOV mode (without NPAR mode), select the desired number of
VFs for this port in the Number of VFs Per PF control window.
The 2x1G+2x10G BCM57800 allows up to 64 VFs per 10G port (the
BCM57800's two 1G ports do not support SR-IOV). The 2x10G
BCM57810 allows up to 64 VFs per port. The 4x10G BCM57840
allows up to 32 VFs per port.