[U-Boot-Users] Testing the INCA-IP Ethernet Module in loopback mode

[Anamik Rao]

I am trying to test the ethernet module of INCA-IP in the loopback mode using
"U-boot version 1.2" .The MIB counters show that the packet is getting
forwarded from the CPU port to the LAN port, and not getting looped back at
the LAN port.

I was expecting the rxUnicastPkt of the LAN port and txUnicastPkt of the CPU
port to increment on successful loopback operation.However, the same is not
observed in the values displayed.Please let me know how I can verify the
loopback.


The contents displayed by the MIB counters before sending the ping requst
are as follows
                                                                                                        
COUNTERS                         LAN-Port        PC-Port         CPU-Port
-----------------------------------------------------------------------------------------------------
rxBytes                         00008aac        00000000        00000ae6
rxUnicastPkt                    0000003e        00000000        0000003b
rxBroadcastPkt                  00000019        00000000        00000001
rxMulticastPkt                  00000003        00000000        00000000
rxCRCErrorPkts                  00000000        00000000        00000000
rxDropPkts                      00000005        00000000        00000000
rxUnderSizeGoodPkts             00000000        00000000        00000000
rxFragments                     00000000        00000000        00000000
rxOversizeGoodPkts              00000000        00000000        00000000
rxOversizeBadPkts               00000000        00000000        00000000
rxGoodBytes                     00008aac        00000000        00000ae6
rxGoodPausePkts                 00000000        00000000        00000000
rxAlignmentErrors               00000000        00000000        00000000
rxErrors                        00000000        00000000        00000000
rx64BytePkts                    00000019        00000000        00000000
rx127BytePkts                   00000002        00000000        00000001
rx255BytePkts                   00000003        00000000        0000003b
rx511BytePkts                   00000004        00000000        00000000
rx1023BytePkts                  00000038        00000000        00000000
rxMaxBytePkts                   00000000        00000000        00000000
txLateCollisions                00000000        00000000        00000000
txGoodBytePkts                  00000f14        00000be8        00007d66
txUcPkts                        0000003b        00000000        0000003b
txBcPkts                        00000001        0000001a        00000000
txMcPkts                        00000000        00000001        00000000
txCollisions                    00000000        00000000        00000000
txSingleCollisions              00000000        00000000        00000000
txMultipleCollisions            00000000        00000000        00000000

The contents displayed by the MIB counters after performing the receive
operation are as follows

COUNTERS                         LAN-Port        PC-Port         CPU-Port
---------------------------------------------------------------------------------------------------------
rxBytes                         00008aac        00000000        00000b10
rxUnicastPkt                    0000003e        00000000        0000003c
rxBroadcastPkt                  00000019        00000000        00000001
rxMulticastPkt                  00000003        00000000        00000000
rxCRCErrorPkts                  00000000        00000000        00000000
rxDropPkts                      00000005        00000000        00000000
rxUnderSizeGoodPkts             00000000        00000000        00000000
rxFragments                     00000000        00000000        00000000
rxOversizeGoodPkts              00000000        00000000        00000000
rxOversizeBadPkts               00000000        00000000        00000000
rxGoodBytes                     00008aac        00000000        00000b10
rxGoodPausePkts                 00000000        00000000        00000000
rxAlignmentErrors               00000000        00000000        00000000
rxErrors                        00000000        00000000        00000000
rx64BytePkts                    00000019        00000000        00000000
rx127BytePkts                   00000002        00000000        00000001
rx255BytePkts                   00000003        00000000        0000003c
rx511BytePkts                   00000004        00000000        00000000
rx1023BytePkts                  00000038        00000000        00000000
rxMaxBytePkts                   00000000        00000000        00000000
txLateCollisions                00000000        00000000        00000000
txGoodBytePkts                  00000f54        00000be8        00007d66
txUcPkts                        0000003c        00000000        0000003b
txBcPkts                        00000001        0000001a        00000000
txMcPkts                        00000000        00000001        00000000
txCollisions                    00000000        00000000        00000000
txSingleCollisions              00000000        00000000        00000000
txMultipleCollisions            00000000        00000000        00000000
txExcessCollisions              00000000        00000000        00000000
txDeferredPkts                  00000000        00000000        00000000








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