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Date: Fri, 9 Nov 2007 17:56:23 -0800
From: Andrew Sharp <andy.sharp@onstor.com>
To: "Brian Stark" <brian.stark@onstor.com>
Cc: "Rick Lund" <rick.lund@onstor.com>
Subject: Re: prom changes
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On Fri, 9 Nov 2007 17:38:41 -0800 "Brian Stark"
<brian.stark@onstor.com> wrote:

> FYI, if we want to use the mac addr programmed into the SiByte MAC,
> then the transmit descriptor needs to be modified to replace the
> source address inserted by the DMA engine.  Right now in PROM, we
> rely on the networking code to use the address from the SEEP. 
> 
> Andy, do you know how the driver is working in Linux?  Does it setup
> the MAC address for each packet or does it set the bit in the
> descriptor to use the register value?

It gets it from the MAC.  What it does after that, I don't know, but
that's the important part.  If I were going to implement the code to
use the seep, I would just take the value in the seep and write it into
the MAC, the end.  Might make your PROM networking code go a lot faster
to do the same?  Just a thought.

> 
> Brian
> 
> 
> > -----Original Message-----
> > From: Andy Sharp 
> > Sent: Monday, October 29, 2007 4:35 PM
> > To: Brian Stark; Rick Lund
> > Subject: prom changes
> > 
> > Hello Boyeeeeez,
> > 
> > Just dropping a note to remind of the prom changes:
> > 
> > * Map the RTC space in.
> > 
> > * One of the following: program the mac addr into the 
> > ethernet controller or get the argument/environment stuff 
> > working.  Preferably the former.  Because the latter might 
> > actually be a kernel issue.
> > 
> > Cheers,
> > 
> > a
> > 
