DMA and cache coherency ???

[Stuart Adams]

 We are trying to get the 82559ER Linux driver working
 on our non-x86 embedded system. How is the issue of
 cache coherency handled ? I did not see anything in 
 the driver to address this. Since the 82559 will 
 DMA data directly to memory, one needs to invalidate
 the cache lines associated with the memory buffers
 used by the 82559 correct ???

Thanks,
  Stuart

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Stuart Adams
Bright Star Engineering Inc.
19 Enfield Drive
Andover MA 01810 USA
Tel: +1-978-470-8738
Fax: +1-978-470-8878
Email: sja@brightstareng.com
Web: http://www.brightstareng.com/
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