Hi Shamile,

 >           TX packets:7 errors:0 dropped:0 overruns:0
...
 > 4) interrupts
 > bash-2.05# cat /proc/interrupts
 >            CPU0
 >  30:       8046     Xilinx INTC  Level  serial
 >  31:          7     Xilinx INTC  Level  eth0
 > BAD:          0
 >
 > 5) Running ethereal on host which I am pinging to, I can
 > see ARP requests from my linux target sent to the host but
 > nothing is sent back to target.
 >

 From the diagnostic results cited above it looks like the
problem is in your host: the tagret sends 7 ARP requests
which are decoded correctly (I assume this because neither
you nor you host complain about ARP requests contents), but
host doesn't respond to them.

I would check the ARP requests contents and then your host settings.

Best regards,
Andrei

Shamile Khan wrote:

Hi,

I have a Memec FG456 evaluation board with P160 module. I
am using Xilinx ethernet core (with default configuration
in mhs file) and the open source linux driver for Xilinx
EMAC. It seems that the ethernet device is detected
correctly but I cannot seem to ping any machine in my
network. I can ping myself though. Here are some diagnostic
results.

1) insmod the driver
bash-2.05# insmod a.out
eth0: Xilinx EMAC #0 at 0xFEFE8000 mapped to 0xC3008000,
irq=31

2)  ifconfig
bash-2.05# ifconfig eth0 192.168.0.55
bash-2.05# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:60:08:27:11:7B
          inet addr:192.168.0.55  Bcast:192.168.0.255
Mask:255.255.255.0
          inet6 addr: fe80::260:8ff:fe27:117b/10 Scope:Link
          UP BROADCAST RUNNING  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0
frame:0
          TX packets:7 errors:0 dropped:0 overruns:0
carrier:0
          collisions:0 txqueuelen:100
          RX bytes:0 (0.0 b)  TX bytes:414 (414.0 b)
          Interrupt:31

lo        Link encap:Local Loopback
          LOOPBACK  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0
frame:0
          TX packets:0 errors:0 dropped:0 overruns:0
carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

sit0      Link encap:IPv6-in-IPv4
          NOARP  MTU:1480  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0
frame:0
          TX packets:0 errors:0 dropped:0 overruns:0
carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

3) bash-2.05# mii-tool -v
eth0: negotiated 100baseTx-FD flow-control, link ok
  product info: vendor 00:10:18, model 30 rev 4
  basic mode:   autonegotiation enabled
  basic status: autonegotiation complete, link ok
  capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD
10baseT-HD
  advertising:  100baseTx-FD 100baseTx-HD 10baseT-FD
10baseT-HD flow-control  link partner: 100baseTx-FD
100baseTx-HD 10baseT-FD 10baseT-HD flow-control

4) interrupts
bash-2.05# cat /proc/interrupts
           CPU0
 30:       8046     Xilinx INTC  Level  serial
 31:          7     Xilinx INTC  Level  eth0
BAD:          0

5) Running ethereal on host which I am pinging to, I can
see ARP requests from my linux target sent to the host but
nothing is sent back to target.

Any ideas on the source of the problem?

Regards,
Shamile

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