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Date: Mon, 26 Feb 2007 14:43:46 +0100 From: Jan-Bernd Themann <ossthema@...ibm.com> To: Roland Dreier <rdreier@...co.com> Cc: netdev <netdev@...r.kernel.org>, Christoph Raisch <raisch@...ibm.com>, "Jan-Bernd Themann" <themann@...ibm.com>, "linux-kernel" <linux-kernel@...r.kernel.org>, "linux-ppc" <linuxppc-dev@...abs.org>, Marcus Eder <meder@...ibm.com>, Thomas Klein <tklein@...ibm.com>, Stefan Roscher <stefan.roscher@...ibm.com> Subject: Re: [PATCH] ehea: Optional TX/RX path optimized for SMP Hi > Also, as far as the approach of using tasklets, I think it would be > better to use the "fake netdev" approach to continue to use NAPI. > Basically you create a pseudo-netdev for each receive queue and have > NAPI handle the polling for you -- you could look for > drivers/net/cxgb3 for an example of this. > Thanks for pointing us to this solution. We are now building a NAPI version that makes use of these pseudo-netdev. The fairness amongst other netdevices should be better this way. > > Why make this a module option that the user has to set? Are there any > circumstances when someone wouldn't want "significant performance > improvements?" If this approach is just better, then it should just > replace the old code. > We'll change the default behaviour to multi queue, but we'd like to keep the option to run in a single queue mode for debug and backward compabilty. Thanks, Jan-Bernd & Christoph R. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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