It's alive...

82599-based 10Gb NIC direct-mapped via PCIe SR-IOV into a KVM-paravirtualized Ubuntu 12.04. Initial test run looks very promising. Full-speed packet capture with zero copy and zero packet loss, thanks to the PF_RING DNA drivers running *inside the virtual machine*

root@randy:~# dmidecode | grep Vendor
 Vendor: Bochs

root@randy:~# dmesg | grep KVM | sed 's/\[[^]]*\]//'
 Booting paravirtualized kernel on KVM
 KVM setup async PF for cpu 0

root@randy:~# dmesg | grep ixgbe | grep dna0 | sed 's/\[[^]]*\]//'
 ixgbe 0000:00:06.0: dna0: MAC: 2, PHY: 2, PBA No: 400900-000
 ixgbe 0000:00:06.0: dna0: Enabled Features: RxQ: 16 TxQ: 16 FdirHash
 ixgbe 0000:00:06.0: dna0: Intel(R) 10 Gigabit Network Connection
 ixgbe 0000:00:06.0: dna0: NIC Link is Up 10 Gbps, Flow Control: RX/TX

root@randy:~# dmesg | grep PF_RING | sed 's/\[[^]]*\]//'
 [PF_RING] Welcome to PF_RING 5.4.5 ($Revision: 5614$)
 [PF_RING] registered /proc/net/pf_ring/
 [PF_RING] Min # ring slots 4096
 [PF_RING] Slot version     14
 [PF_RING] Capture TX       Yes [RX+TX]
 [PF_RING] Transparent Mode 0
 [PF_RING] IP Defragment    No
 [PF_RING] Initialized correctly

root@randy:~# tcpdump -i dna0 -s0 -w /dev/null
tcpdump: listening on dna0, link-type EN10MB (Ethernet), capture size 8192 bytes
750380 packets captured
750380 packets received by filter
0 packets dropped by kernel