[realtek] rtl8139 and UltraSparc 5

Donald Becker becker@scyld.com
Thu, 6 Sep 2001 01:40:38 -0400 (EDT)

On Mon, 3 Sep 2001, Marcelo Roccasalva wrote:

> I'm trying to use a rtl8139 in an UltraSparc 5 with little success... I have
> RedHat 6.2 installed, using the stock kernel 2.2.19 rpm (64 bits).

What driver?  And what version number?

> My dmesg told me about latency=0 so I tried several values, 255 being the
> better, but when I ifup eth1, I get no more than 10 pings ok, and the iface
> gets silent. With short latencies (<64) I get "packet too big" messages. I
> don't have any MAC address problems...

A few possible issues:
  Endian correction (unlikely, if a few packets are getting through)
  Burst length problems (although I don't know of any specific Sparc bugs)
  A problem with the ring wrap (we need to know the driver version).
    This could be interacting with the DMA-able page allocation on the Sparc

Donald Becker				becker@scyld.com
Scyld Computing Corporation		http://www.scyld.com
410 Severn Ave. Suite 210		Second Generation Beowulf Clusters
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