netdev - Re: [PATCH 2.6.25 1/1]S2io: Multiqueue network device support implementation

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Message-ID: <20080124072549.GA6814@one.firstfloor.org>
Date:	Thu, 24 Jan 2008 08:25:49 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Ramkrishna Vepa <Ramkrishna.Vepa@...erion.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Sreenivasa Honnur <Sreenivasa.Honnur@...erion.com>,
	netdev@...r.kernel.org, jeff@...zik.org,
	support <support@...erion.com>
Subject: Re: [PATCH 2.6.25 1/1]S2io: Multiqueue network device support implementation

> [Ram] I am assuming that this is with regards to msi-x interrupts. We

Yes. 

And avoiding bouncing locks for device state between CPUs.

> have done away with handling tx completion in the interrupt handler, and
> are instead handling them in the context of the transmit. The slow path,
> straggling transmit completions will be handled in the timer context.

Ok -- hopefully you don't have bad corner cases from this when the pipe
is not fully filled and then causing longer latencies on completion. 
Old NAPI sometimes suffered from such problems. 

-Andi
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