From: Christian Lamparter <chunkeey@web.de>
To: Max Filippov <jcmvbkbc@gmail.com>
Subject: Re: [PATCH] p54spi: get rid of busy-wait loops
Date: Mon, 6 Apr 2009 13:47:06 +0200
Cc: linux-wireless@vger.kernel.org
References: <> <200904060030.25425.chunkeey@web.de> <200904060916.03555.jcmvbkbc@gmail.com>
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On Monday 06 April 2009 07:16:02 Max Filippov wrote:
> >
> > By the way a few days ago the libertas driver authors posted a patch
> > which "improve the average throughput 13%."
> >
> > http://marc.info/?l=linux-wireless&m=123871643203161
> >
> > I wonder if this would also work with p54spi.
> > But to test this theory, one has to rewrite the driver to use kthread
> > instead of hogging workqueues.... just in case you're looking for more
> > TODOs ;-)
> I'm just getting it to work. And there are still problems in tx path, e.g.
> it cannot withstand dd if=/dev/zero | ssh ... "cat >/dev/null".

hmm, sounds familiar. 
(" p54usb: fix random traffic stalls (LM87)" (43af18f06d5
and p54usb: fix packet loss with first generation devices  ")

can you please run
for ((size=0; size < 9000;size++)); do ping $IP -s $size

and see if there's a connection between the stalls/hangs and the frame length?

Regards,
	Chr