From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Hutchings Subject: RE: [RFC 2/2] ethtool: Add support for DMA Coalescing feature config to ethtool. Date: Thu, 30 Jun 2011 19:06:19 +0100 Message-ID: <1309457179.2701.6.camel@bwh-desktop> References: <1308071606-6333-1-git-send-email-carolyn.wyborny@intel.com> <20110616.233354.508986372720173787.davem@davemloft.net> <20110617.145420.866989290749857501.davem@davemloft.net> <1308677893.2743.24.camel@bwh-desktop> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: David Miller , "netdev@vger.kernel.org" To: "Wyborny, Carolyn" Return-path: Received: from mail.solarflare.com ([216.237.3.220]:36839 "EHLO exchange.solarflare.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751930Ab1F3SGW (ORCPT ); Thu, 30 Jun 2011 14:06:22 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On Thu, 2011-06-30 at 10:52 -0700, Wyborny, Carolyn wrote: [...] > >You may wish to propose a new command structure that covers both IRQ and > >DMA moderation. They seem to be related, since DMA cannot be delayed > >longer than the corresponding IRQ. We are currently lacking a way to > >specify different IRQ moderation for multiqueue devices where the queues > >are not all used in the same way. > > > >Ben. > > > >-- > >Ben Hutchings, Senior Software Engineer, Solarflare > >Not speaking for my employer; that's the marketing department's job. > >They asked us to note that Solarflare product names are trademarked. > > I will try to do this. Confirming you are suggesting a replacement or > an alternate for the current -c/-C coalesce settings with perhaps some > room reserved for some future coalescing type features and enable > settings per queue? [...] Yes. I'm not insisting that you must do this instead of just defining the operations for DMA coalescing, but it would be helpful. Ben. -- Ben Hutchings, Senior Software Engineer, Solarflare Not speaking for my employer; that's the marketing department's job. They asked us to note that Solarflare product names are trademarked.