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From: Johannes Berg <johannes@sipsolutions.net>
To: Ivo van Doorn <ivdoorn@gmail.com>
Cc: John Linville <linville@tuxdriver.com>,
	linux-wireless <linux-wireless@vger.kernel.org>
Subject: Re: [PATCH] mac80211: allow DMA optimisation
Date: Fri, 07 Aug 2009 20:45:22 +0200	[thread overview]
Message-ID: <1249670722.7194.12.camel@johannes.local> (raw)
In-Reply-To: <200908072021.53221.IvDoorn@gmail.com>

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On Fri, 2009-08-07 at 20:21 +0200, Ivo van Doorn wrote:

> > Initially, yes, but I think we should eventually use it for sending out
> > multiple frames after restarting queues etc. For instance after
> > scanning, we could send out a bunch of frames at once.
> 
> This would work for PCI devices, but USB devices can spoil the
> fun (as usual) because those devices use the queue in the hardware
> and you can't control the actual "kick".

Sure, but it's meant as an optimisation anyway.

johannes

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      reply	other threads:[~2009-08-07 18:45 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-07 14:42 [PATCH] mac80211: allow DMA optimisation Johannes Berg
2009-08-07 16:55 ` Ivo van Doorn
2009-08-07 18:01   ` Johannes Berg
2009-08-07 18:21     ` Ivo van Doorn
2009-08-07 18:45       ` Johannes Berg [this message]

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