Re: NatSemi DP83820 gigE driver kit for 4.2 and 4.3

[Richard Hodges]

On Mon, 16 Jul 2001, Bill Paul wrote:

> They're "okay." The NatSemi chip has one flaw, which is that RX buffers
> must be aligned on a 64-bit boundary. None of the more expensive NICs have
> this restriction.

Go ahead and beat me up if you have to :-)  But why is there _any_ issue
with RX buffer alignment?  I get some mbufs and set the data pointer to
any point I want, or I get a cluster, which is always on a 2k boundary.

Now TX buffers are a problem - I have to take what I get and just 
"deal with it".  If both start address and length need to be aligned,
then I'm pretty much screwed - I have to copy...  

All the best,

-Richard

-------------------------------------------
   Richard Hodges   | Matriplex, inc.
   Product Manager  | 769 Basque Way
  [EMAIL PROTECTED]  | Carson City, NV 89706
    775-886-6477    | www.matriplex.com 


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