netdev - Re: [RFC] New driver API to speed up small packets xmits

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Message-ID: <20070511095602.GA5762@2ka.mipt.ru>
Date:	Fri, 11 May 2007 13:56:02 +0400
From:	Evgeniy Polyakov <johnpol@....mipt.ru>
To:	Krishna Kumar2 <krkumar2@...ibm.com>
Cc:	Ian McDonald <ian.mcdonald@...di.co.nz>, netdev@...r.kernel.org,
	Rick Jones <rick.jones2@...com>,
	Vlad Yasevich <vladislav.yasevich@...com>
Subject: Re: [RFC] New driver API to speed up small packets xmits

On Fri, May 11, 2007 at 03:22:13PM +0530, Krishna Kumar2 (krkumar2@...ibm.com) wrote:
> > No locks, no requeues? Seems simple imho.
> 
> I will analyze this in more detail when I return (leaving just now, so got
> really no time). The only issue that I see quickly is "No locks", since to
> get things off the queue you need to hold the queue_lock.

I meant no locks during processing of the packets (pci read/write, dma
setup and so on), of course it is needed to dequeue a packet, but only
for that operation.

-- 
	Evgeniy Polyakov
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