From owner-freebsd-net@FreeBSD.ORG Thu Nov 18 05:43:35 2004 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 26B3F16A4D0 for ; Thu, 18 Nov 2004 05:43:34 +0000 (GMT) Received: from beastie.hyow.eu.org (213-152-46-100.dsl.eclipse.net.uk [213.152.46.100]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6A34043D2D for ; Thu, 18 Nov 2004 05:43:31 +0000 (GMT) (envelope-from mark@hyow.eu.org) Received: (qmail 61083 invoked by uid 751); 18 Nov 2004 05:51:26 +0000 Received: from mark@hyow.eu.org by beastie.hyow.eu.org by uid 731 with qmail-scanner-1.22-st-qms (clamdscan: 0.75. spamassassin: 2.64. Clear:RC:1(127.0.0.1):. Processed in 1.148575 secs); 18 Nov 2004 05:51:26 -0000 X-Antivirus-HYOW.EU.ORG-Mail-From: mark@hyow.eu.org via beastie.hyow.eu.org X-Antivirus-HYOW.EU.ORG: 1.22-st-qms (Clear:RC:1(127.0.0.1):. Processed in 1.148575 secs Process 61078) Received: from localhost.hyow.eu.org (HELO beastie.hyow.eu.org) (mark@hyow.eu.org@127.0.0.1) by beastie.hyow.eu.org with SMTP; 18 Nov 2004 05:51:24 +0000 Received: from 10.0.0.11 (SquirrelMail authenticated user mark@hyow.eu.org); by beastie.hyow.eu.org with HTTP; Thu, 18 Nov 2004 05:51:24 -0000 (GMT) Message-ID: <54762.10.0.0.11.1100757084.squirrel@10.0.0.11> In-Reply-To: <20041118052417.GR66822@squash.dsto.defence.gov.au> References: <20041117181351.GA48071@comp.chem.msu.su> <20041118052417.GR66822@squash.dsto.defence.gov.au> Date: Thu, 18 Nov 2004 05:51:24 -0000 (GMT) From: "Mark Magiera" To: "Wilkinson, Alex" User-Agent: SquirrelMail/1.4.3a X-Mailer: SquirrelMail/1.4.3a MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal cc: net@freebsd.org Subject: Re: polling(4) rocks! X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Nov 2004 05:43:35 -0000 > Why can some NIC use polling and others not ? > > eg I went to turn on polling on my BCM5782 Broadcom NetXtreme Gigabit > Ethernet Card. And bge(4) doesn't mention anything about polling. > > Is it a hardware feature of the NIC ? > > - aW > >From `man 4 polling`: SUPPORTED DEVICES Polling requires explicit modifications to the device drivers. As of this writing, the dc(4), em(4), fxp(4), rl(4), and sis(4) devices are supported, with other in the works. This seems to suggest all hardware supports it, just some drivers don't at this/that(2002) moment in time. -- Mark Magiera