EVMK2H PA EMAC Problem

hi. everyone
I want to send and receive packets between the PC and the EVM.

=====================================================================
using project : PA_emacExample_K2HC66BiosExampleProject
test environment : The RJ45 of the EVM was connected directly to the PC.
                   PC IP Address => 192.168.1.10
                   RJ-45 Link LED : Orange(GIgabit) and sometimes blinking RX LED
=====================================================================
The example source was modified as follows:

1. cpsw_singlecore.c
   : cpswSimTest = 0
     cpswLpbkMode = CPSW_LOOPBACK_NONE;
  SendPacket(dest_emac_port_id) => SendPacket(0)

2. cpsw_mgmt.c
    NUM_MAC_PORTS : 2
    Init_SGMII_SERDES()  : lpbk_mode = CSL_SERDES_LOOPBACK_DISABLED;

3. pa_mgmt.c
    Add_MACAddress() : ethInfo : des mac{0x10, 0x11, ..., 0x5} => my PC Mac address

4. framework.c
   pktMatch[] : dst mac : 0x10, 0x11, 0x12...  => my PC Mac address
=====================================================================
and build and load/run
Thus, results were as follows:

CSL_CPSW_getStats after Packet Transmission ...
Stats for block number: 0
********************************************
 Good Frames Received                      10
 Total Received Bytes in Good Frames       1260
 Sum of all Octets Tx or Rx on the Network 1260
********************************************
Stats for block number: 1
********************************************
 Good Frames Sent                          10
 Total Transmitted Bytes in Good Frames    1260
 Total Tx&Rx with Octet Size of 65 to 127  10
 Sum of all Octets Tx or Rx on the Network 1260
********************************************

QUESTION
1. not loopback mode
   What means "Good Frame Received"?
  
2. WHY?
   PC does not receive the packet

3. Where is wrong with the source code?

Can anyone help?

Thanks