[Bug 1001116] Instruct lwIP to use special section for buffers and heap.

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--- Comment #43 from Ilija Kocho <ilijak@siva.com.mk> 2011-01-31 17:39:04 GMT ---
(In reply to comment #42)
> (In reply to comment #34)
> 
> > > I am kind of undecided. Somebody else's opinion is welcome.
> >                           ^^^^^^^^
> >                           That would be fine. John, if you read, what
> >                           is your opinion?
> 
> Sergei, is this about whether to place var_data[] in peripheral memory or to
> keep it in main memory? Is there something different about this array relative
> to those you are definitely moving to peripheral memory?

John,

The ones moved to peripheral memory are: memp_memory[] and ram_heap[] i.e.
arrays from which lwip allocates memory for pbufs, etc. It is what would
typically peripheral (hardware) do.

var_data[] on the other hand contains thread related data (not buffers).

At the beginning I wanted to save as much as possible, but later as I had
gained some insight I have reconsidered my view.

Other difference is that var_data[] is used in sequential mode which is not
very likely used on devices with low memory.

Please refer to comment #36 and comment #37 for our further conversation with
Sergei.

Thanks for your consideration
Ilija

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