Usually vmx (e.g., vmx0 ) in FreeBSD and OpenBSD .
On some FreeBSD versions, you may need to set hw.pci.honor_msi_blacklist="0" in /boot/loader.conf to enable full multiqueue functionality. bsd Vmxnet3
While virtual, it can report and handle link speeds between 10Gbps and 65Gbps in modern vSphere environments. ⚙️ Implementation & Usage Usually vmx (e
The driver in BSD systems (commonly appearing as vmx ) is a high-performance paravirtualized network interface designed specifically for virtual machines running on VMware ESXi or Workstation . It offers significant performance gains over emulated cards like e1000 by reducing the overhead of guest-to-hypervisor communication. ⚡ Key Features ⚙️ Implementation & Usage The driver in BSD
Handles 800.1Q VLAN tagging directly, often used in VMware's VLAN Guest Tagging (VGT) mode.
FreeBSD Note: The FreeBSD vmx(4) driver supports up to 8 transmit and 16 receive queues by default.
Allows network processing to scale across multiple CPU cores via Receive Side Scaling (RSS) .