case 1: firstly create VF with ixgbe, bind VF to dpdk

gistfile1.txt

Two machines with 10G NIC directly connect each other
nn22 and nn23

step 1: create one VF on nn23 
echo 1 > /sys/bus/pci/devices/0000:07:00.0/sriov_numvfs

Before bind VF to vfid-pci, try to ping this VF from nn22 (IP 12.0.0.22)
step 2:  assign IP to this VF p2p1_0 12.0.0.23

p2p1      Link encap:Ethernet  HWaddr 90:e2:ba:4a:e8:08  
          inet6 addr: fe80::92e2:baff:fe4a:e808/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1847 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:111124 (111.1 KB)  TX bytes:0 (0.0 B)

p2p1_0    Link encap:Ethernet  HWaddr 2a:6b:c5:99:c1:e7  
          inet addr:12.0.0.23  Bcast:12.255.255.255  Mask:255.0.0.0
          inet6 addr: fe80::286b:c5ff:fe99:c1e7/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1836 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1844 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:110160 (110.1 KB)  TX bytes:77760 (77.7 KB)

From the tcpdump -i p2p1_0, it gave the reply. Also ifconfig counter increases. It seems that the arp reply should be sent out.  
But nn22 does not receive the packets. ifconfig drop counter is 0. 

If using ethtool checks the counter, tx counter is 0. 
root@nimbnode23:/sys/bus/pci/devices/0000:07:00.0# ethtool -S p2p1_0
NIC statistics:
     rx_packets: 0
     tx_packets: 0
     rx_bytes: 0
     tx_bytes: 0
     tx_busy: 0
     tx_restart_queue: 0
     tx_timeout_count: 1
     multicast: 0
     rx_csum_offload_errors: 0
     rx_bp_poll_yield: 0
     rx_bp_cleaned: 0
     rx_bp_misses: 0
     tx_bp_napi_yield: 0
     tx_bp_cleaned: 0
     tx_bp_misses: 0
     
  why ifconfig and ethtool does not match each other. ifconfig shows tx increases. 
  but ethtool shows tx is 0. p2p1 tx is also 0 from ethtool stats. 
  
  Do you have any idea how to debug this problem?