From owner-freebsd-net@FreeBSD.ORG Sat Dec 2 08:59:27 2006 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id BEF6216A412 for ; Sat, 2 Dec 2006 08:59:27 +0000 (UTC) (envelope-from chris@hitnet.RWTH-Aachen.DE) Received: from mta-1.ms.rz.rwth-aachen.de (mta-1.ms.rz.RWTH-Aachen.DE [134.130.7.72]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8A70F43CA6 for ; Sat, 2 Dec 2006 08:59:07 +0000 (GMT) (envelope-from chris@hitnet.RWTH-Aachen.DE) Received: from circe ([134.130.3.36]) by mta-1.ms.rz.RWTH-Aachen.de (Sun Java System Messaging Server 6.2-7.05 (built Sep 5 2006)) with ESMTP id <0J9N00JIL2B14F70@mta-1.ms.rz.RWTH-Aachen.de> for freebsd-net@freebsd.org; Sat, 02 Dec 2006 09:59:25 +0100 (CET) Received: from talos.rz.RWTH-Aachen.DE ([134.130.3.22]) by circe (MailMonitor for SMTP v1.2.2 ) ; Sat, 02 Dec 2006 09:59:24 +0100 (MET) Received: from bigboss.hitnet.rwth-aachen.de (bigspace.hitnet.RWTH-Aachen.DE [137.226.181.2]) by smarthost.rwth-aachen.de (8.13.8/8.13.1/1) with ESMTP id kB28xOwn003921; Sat, 02 Dec 2006 09:59:24 +0100 Received: from haakonia.hitnet.rwth-aachen.de ([137.226.181.92]) by bigboss.hitnet.rwth-aachen.de with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA:32) (Exim 4.50) id 1GqQiS-0007Gq-2u; Sat, 02 Dec 2006 09:59:24 +0100 Received: by haakonia.hitnet.rwth-aachen.de (Postfix, from userid 1001) id 748113F41E; Sat, 02 Dec 2006 09:59:23 +0100 (CET) Date: Sat, 02 Dec 2006 09:59:23 +0100 From: Christian Brueffer In-reply-to: <04C71268DFDAA8499EC1A248A44B6A2B0855B143@Exchange21.EDU.epsb.ca> To: Kirk Davis Message-id: <20061202085923.GA1960@haakonia.hitnet.RWTH-Aachen.DE> MIME-version: 1.0 Content-type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="yrj/dFKFPuw6o+aM" Content-disposition: inline X-Operating-System: FreeBSD 6.2-PRERELEASE X-PGP-Key: http://people.FreeBSD.org/~brueffer/brueffer.key.asc X-PGP-Fingerprint: A5C8 2099 19FF AACA F41B B29B 6C76 178C A0ED 982D References: <04C71268DFDAA8499EC1A248A44B6A2B0855B143@Exchange21.EDU.epsb.ca> User-Agent: Mutt/1.5.11 Cc: freebsd-net@freebsd.org Subject: Re: Broadcom (bce) support and POLLING X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 02 Dec 2006 08:59:27 -0000 --yrj/dFKFPuw6o+aM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Nov 30, 2006 at 08:42:02AM -0700, Kirk Davis wrote: > Hi, > We have just upgraded to a Dell 2950 for our main BGP router. > With the constant rise in traffic through the box, I have started to > notice some dropped packets so I figured I would take a look at putting > the interfaces into polling more to squeeze a little more packets > through them. >=20 > I have added the DEVICE_POLLING and HZ=3D1000 to the kernel. I > turned on polling for the bce interfaces and they pass traffic at low > volumes (like ping tests). If I put my fluke traffic generators on > either side of the box and try to ramp it up to even 100Mb (they are Gig > links) then the interfaces will stop responding. Turning off polling > will get them to respond again. >=20 > I know that the bce support in still quite new. Has anyone else > testing with polling and the bce interfaces? Is there any more > information that I can get for the developers to help track this down. > The system is not in production right now so I can use it for testing. >=20 That's my fault. When David's driver was added, I saw the polling compile time option was supported and concluded that polling works with this driver (David told me it wasn't tested afterwards). I'll remove the bce entry from polling(4) and the polling entry from bce(4) for now. - Christian --=20 Christian Brueffer chris@unixpages.org brueffer@FreeBSD.org GPG Key: http://people.freebsd.org/~brueffer/brueffer.key.asc GPG Fingerprint: A5C8 2099 19FF AACA F41B B29B 6C76 178C A0ED 982D --yrj/dFKFPuw6o+aM Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQFFcUBrbHYXjKDtmC0RArXzAKDig1ZYkr5Z8mympGkeu9aXUVN3UgCePJH3 4lAcRNokJLXcxBk7xlN9rTg= =qkYV -----END PGP SIGNATURE----- --yrj/dFKFPuw6o+aM--