From owner-freebsd-net@FreeBSD.ORG  Fri Feb 16 16:51:32 2007
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Date: Fri, 16 Feb 2007 08:51:32 -0800
From: Luigi Rizzo <rizzo@icir.org>
To: Max Laier <max@love2party.net>
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	from max@love2party.net on Fri, Feb 16, 2007 at 05:38:28PM +0100
Cc: freebsd-net@freebsd.org, "V.Chukharev" <chukharev@mail.ru>
Subject: Re: iwi leaks memory?
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On Fri, Feb 16, 2007 at 05:38:28PM +0100, Max Laier wrote:
...
> I'm under the impression that this is more a problem of increasing 
> fragmentation until we can't get a big enough unfragmented chunk.  I 
> don't have any proof of this assumption yet.

makes sense.
As a matter of fact i wonder whether it wouldn't be smarter
to allocate the dma-ble memory on the first request and
keep it around until the driver is unloaded.

If i read the code in iwi_load_firmware() correctly,
the contiguous chunks cannot be longer than 8191 bytes,
so a single contiguous buffer is not mandatory.
I just don't know if we can write the firmware to the adapter
with multiple operations (lists of command blocks) or
it needs to be just a single list ?

	cheers
	luigi