SR-IOV enabled on AMD Solarflare adapters provides accelerated cut-through performance and is fully compatible with hypervisor based services and management tools.
- PCIe Virtual Functions (VF)
- A PCIe physical function (PF) can support a configurable number of PCIe virtual functions. In total 240 VFs can be allocated between the PFs.
- MSI-X interrupts
- The adapter can support a total of 2048 MSI-X interrupts.
- Layer 2 Switching Capability
- A layer 2 switch configured in firmware supports the transport of network packets between PCI physical functions (PF), Virtual functions (VF) and the external network. This allows received packets to be replicated across multiple PFs/VFs and allows packets transmitted from one PF to be received on another PF or VF.
The AMD Solarflare implementation uses a single driver (sfc.ko) that binds to both PFs and VFs.