![]() In addition to preventing the routing and copying in the extensible switch, the receive interrupts for VM queues are assigned to different processors.įor more information about the VMQ interface, see Virtual Machine Queue (VMQ). Data that does not pass any filter tests goes to the default queue where the extensible switch must process the data. This prevents software processing in the extensible switch. Under VMQ, the physical network adapter transfers the data that matches a receive filter test for a VMQ directly to that queue. The VM network adapter is exposed by the network virtual service client (NetVSC) that runs in the guest operating system. The services that the extensible switch provides includes routing packets to and from the virtual machine (VM) network adapters in the guest operating systems. This component acts as a network virtual service provider (NetVSP) and provides services to support networking access by the Hyper-V child partitions. In the figure, the miniport driver for the physical network adapter indicates received data up to the Hyper-V extensible switch component. The following figure shows the synthetic data paths within the VMQ interface. Routing to queues in the network adapter prevents a copy step to copy data from the network adapter receive buffers to the VM address space. Every queue is serviced by a different processor. Routing the packets to queues and indicating all the packets on a queue to a VM allows concurrent receive processing for multiple VMs. When a miniport driver makes a receive indication, all of the packets are for the same VM queue.Īs an option, the network adapter can provide VLAN filtering in hardware for a specified media access control (MAC) address. For example, as the user rolls the mouse pointer over an image of a plant, you could show a layer that gives details about the plant’s growing season and region. This action is useful for showing information as the user interacts with the page. ![]() This requires parsing of the packet header and configuration of the queues on the network adapter. The Show-Hide Layers action shows, hides, or restores the default visibility of one or more layers. ![]() A network adapter that supports the VMQ interface includes hardware that routes packets to receive queues. ![]()
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