mvme6100 support

[Kate Feng]

Joel Sherrill wrote:
> Feng, Kate wrote:
>> I wrote and upgraded the mvme5500 BSP to disco BSP to support the
>> mvme6100 board.  At that time, the performance of the network on
>> the mvme6100 board was not important, but the decision for the
>> choice of H/W for my project was urgent.  Thus, the code for
>> the network is not really ready for a formal release yet.  It seems 
>> that the
>> network code for beatnik BSP needs to be  optimized or rewritten  as 
>> well
>> based on the version I obtained from Till Straumann a while ago.  I 
>> do not know if he had any chance to improve the netowrk
>> performance ever since then.    
> So .. it should work to ...
>
> a) build for mvme5500 and run on mvme6100?
Not the mvme5500 BSP  in the current RTEMS release.
I could rename "disco" BSP  back to "mvme5500" BSP
for the RTEMS release, except the network driver was/is
really not ready for the open release yet. 
> b) add alias to build for mvme6100 and fix x odd
>     issues for mvme6100
>
> Does this mean the network driver works?  How
> bad is "not optimized" really?

Yes, the network driver for the mvme6100 works, at
least for the one project I tested, but a workaround that
have degraded the actual performance of the H/W by my
estimation of at least two.
It was not written for the real-time performance because
there were somethings missing.  I had to quickly move on
to a different H/W platform because the DDR memory
date rate is too slow for my project, not because of the
network driver.  I actually started to rewrite the driver to
meet the requirement of the real-time programming.
However, it kept getting interrupted by my other higher
priority projects that I could not get this project
completed.  It should be fun to get it finished, but
it is more important to get my other projects done at
this point.

Regards,
Kate
>
> Just asking because I know you are a perfectionist and
> wanted to get an accurate description of the status. :)
>
> --joel
>>  
>> At this point, I have at least two other higher priority tasks to be
>> completed before I have a chance to  finish rewriting the network
>> code for the mvme6100 board to boost up its performance, although it
>> could be a fun project.
>>  
>> Cheers,
>> Kate
>>
>> ________________________________
>>
>> From: rtems-users-bounces at rtems.org on behalf of Daron Chabot
>> Sent: Thu 7/16/2009 9:25 PM
>> To: RTEMS
>> Subject: mvme6100 support
>>
>>
>>
>> Just looking at the cvs HEAD, it seems as though the mvme5500 bsp may
>> also support the mvme6100 board. Is this correct ?
>>
>> Or should I instead be inquiring about the "beatnik" bsp for 6100 
>> support ?
>>
>> Thanks.
>>
>>
>> -- dc
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>