Enabling DRSS (Default Queue RSS) for async qedentv driver

Products

• VMware vSphere ESXi

Issue/Introduction

DRSS (Default Queue RSS) is a key network load-balancing feature in the qedentv driver. It enables Receive Side Scaling (RSS) on the default receive network queue (Default Rx Queue), improving network packet processing efficiency in high-throughput environments.

Environment

• ESXi 8.x/9.x
• VCF 9.0

Cause

DRSS function is disabled by default in the async Marvell qedentv pNIC driver. 

Resolution

Enable DRSS by configuring qedentv driver module parameters. 

To execute on ESX host to load driver with DRSS queues set to 16 on both ports of dual port adapter :

# esxcli system module parameters set -p "DRSS=16,16" -m qedentv
# reboot  

Disable DRSS

To execute on ESXi host to disable DRSS for qedentv driver module:

# esxcli system module parameters set -p "DRSS=0,0" -m qedentv
# reboot

Additional Information

Performance Best Practices for VMware vSphere 8.0