From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: [PATCH 2.6.25 1/1]S2io: Multiqueue network device support implementation Date: Thu, 24 Jan 2008 08:25:49 +0100 Message-ID: <20080124072549.GA6814@one.firstfloor.org> References: <78C9135A3D2ECE4B8162EBDCE82CAD7702E70E92@nekter> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Andi Kleen , Sreenivasa Honnur , netdev@vger.kernel.org, jeff@garzik.org, support To: Ramkrishna Vepa Return-path: Received: from one.firstfloor.org ([213.235.205.2]:50915 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752454AbYAXGwE (ORCPT ); Thu, 24 Jan 2008 01:52:04 -0500 Content-Disposition: inline In-Reply-To: <78C9135A3D2ECE4B8162EBDCE82CAD7702E70E92@nekter> Sender: netdev-owner@vger.kernel.org List-ID: > [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