netdev - Re: [RFC][NET_SCHED] explict hold dev tx lock

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Date:	Wed, 19 Sep 2007 09:33:52 -0400
From:	jamal <hadi@...erus.ca>
To:	David Miller <davem@...emloft.net>
Cc:	herbert@...dor.apana.org.au, netdev@...r.kernel.org,
	kaber@...sh.net, dada1@...mosbay.com, johnpol@....mipt.ru
Subject: Re: [RFC][NET_SCHED] explict hold dev tx lock

On Mon, 2007-17-09 at 22:48 -0400, jamal wrote:

> Nothing much has changed from what it was before.
> The only difference is we let go of the queue lock before grabbing
> the tx lock which never mattered for LLTX. 
> Once we grab the tx lock it is the same logic and so far is working well
> on both tg3 and e1000 (which is LLTX). 
> I will continue to retest with net-2.6.24 once you complete rebasing
> and look around to see if anyone maybe affected.

Ok, this is looking solid with this mornings tree. Tested on a dual core
xeon with e1000 (LLTX) and a dual core opteron with tg3 (non-LLTX).
About 100 million packets from udp full throttle on all 4 cpus; i tried
pulling cables etc while doing this to generate extrenous interupts and
didnt see any issues.

Shall i submit the patch?

cheers,
jamal

 

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