Thread (4 messages) flat view 4 messages, 4 authors, 2006-08-03

Re: Xilinx TEMAC

From: Frank D Lombardo <hidden>
Date: 2006-08-03 18:53:58

David H. Lynch Jr. wrote:
Ameet Patil wrote:
  
quoted
 > Did you happen to get an Ethernet mac going on the virtex2 or
 > virtex4 with the 2.6 kernel?

Nope! :-(
Rumour has it that Montavista is soon going to release the source for 
2.6 kernel to run on Xilinx platforms.

  
    
    I have 2 different TEMAC's working under 2.6 with a V4.

    The MontaVista driver that has been posted on the list that I think
is from MontaVista for the PLB TEMAC with very minor modifications to
get it to work at speeds other than GigaBit.

    A driver I wrote for the LocalLink TEMAC that works limpingly. I
have been unable to figure out how to get a receive interrupt from the
LocalLink TEMAC so receives are polled and performance is poor.
    I have pretty much abandoned work on it  - my client wants the
smallest possible FPGA footprint BUTanother OS I am porting requires
interrupt driven  IO and we are looking for a single minimal hardware
implimentation for all platforms.

    Anyway, if anyone wants the LL TEMAC in its current state I can post it.
    Currently it sends fine. It drops about 50% of all received packets
- but that is probably debugging overhead and poll rate tuning.
   




  
I would be interested looking at the LL TEMAC patch. Hopefully I can 
pick up where you left off. We would require an interrupt driven TEMAC
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