linux-kernel - Re: [PATCH 0/6]: powerpc/cell spidernet ethernet patches

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Date:	Mon, 2 Oct 2006 12:23:00 -0500
From:	linas@...tin.ibm.com (Linas Vepstas)
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linuxppc-dev@...abs.org, jeff@...zik.org, akpm@...l.org,
	netdev@...r.kernel.org, James K Lewis <jklewis@...ibm.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/6]: powerpc/cell spidernet ethernet patches

On Mon, Oct 02, 2006 at 06:50:39PM +0200, Arnd Bergmann wrote:
> On Monday 02 October 2006 18:27, Linas Vepstas wrote:
> > > 
> > > I'm not sure if I have missed a patch in here, but I
> > > don't see anything reintroducing the 'netif_stop_queue'
> > > that is missing from the transmit path.
> > > 
> > > Do you have a extra patch for that?
> > 
> > Unfinished.  There are several ways in which the current 
> > spider-net driver doesn't do things the way Greg KH's, etal 
> > book on device drivers recommends. I was planning on combing 
> > through these this week.
> 
> Ok, that's good. However, removing the netif_stop_queue
> was an obvious oversight that happened during the cleanup
> last year.
> 
> Putting that one line back in should be a really safe fix for
> the problem of overly high system load we sometimes see.

Hmm. I have a patch from 5 weeks ago that seems to insert a bunch 
of these. I'm not sure why it hadn't been mailed before, I'll 
test and post as soon as I can.

--linas
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