Re: Question about pcn ethernet driver

[Juergen Hannken-Illjes <hannken%eis.cs.tu-bs.de@localhost>]

On Thu, Apr 17, 2003 at 11:22:09AM -0700, John Gordon wrote:
> Hello folks,
> 
> Can anybody out there confirm that they have the pcn driver for the AMD
> PCnet-PCI series of chips working on PPC? 

Sure, from the dmesg of EXPLORA451 (PPC403GCX + AM79C971):

        le0 at elb0 irq 28
        le0: address 00:00:a7:02:c7:87
        le0: 8 receive buffers, 2 transmit buffers

The corresponding driver glue is in file sys/arch/evbppc/explora/dev/le_elb.c

> So far, I having confirmed that the interrupt routing on the board is correct
> (the interrupt handler in the driver is being called when I ping the board). I
> also fixed a problem with the ethernet address being incorrect in the PROM
> (luckily it is already in the physical address registers from the boot
> firmware). But still I get no connection.
> 
> I have traced the incoming packets up into the stack too, and sure enough I 
> see
> the ARP request come in, and I see the ether_output() function queue up a
> reply. I also see the outbound packet count increment in the transmit 
> interrupt
> handler.
> 
> Running arp -a on my host shows the entry for the NS1000 as incomplete. Even
> manually assigning the ethernet address on the host doesn't make the 
> connection
> work, so I am very suspicious of the packets being generated. As I type this, 
> I
> am installing ethereal in the hope that I can see something obviously wrong in
> the packets. I thought I'd ask though whether this driver had ever been used 
> on
> a PPC system before.
> 
> Rgds,
> John...
> 
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-- 
Juergen Hannken-Illjes - hannken%eis.cs.tu-bs.de@localhost - TU Braunschweig 
(Germany)