From owner-freebsd-net@FreeBSD.ORG Thu Nov 30 16:03:20 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 7806B16A4A0 for ; Thu, 30 Nov 2006 16:03:20 +0000 (UTC) (envelope-from davidch@broadcom.com) Received: from mms1.broadcom.com (mms1.broadcom.com [216.31.210.17]) by mx1.FreeBSD.org (Postfix) with ESMTP id DADFD43EFF for ; Thu, 30 Nov 2006 15:58:13 +0000 (GMT) (envelope-from davidch@broadcom.com) Received: from 10.10.64.154 by mms1.broadcom.com with ESMTP (Broadcom SMTP Relay (Email Firewall v6.3.0)); Thu, 30 Nov 2006 07:57:19 -0800 X-Server-Uuid: D7CB97D3-6392-476F-BE46-AB3D6F515C9A Received: by mail-irva-10.broadcom.com (Postfix, from userid 47) id 9FEA12AF; Thu, 30 Nov 2006 07:57:19 -0800 (PST) Received: from mail-irva-8.broadcom.com (mail-irva-8 [10.10.64.221]) by mail-irva-10.broadcom.com (Postfix) with ESMTP id 686D22AE; Thu, 30 Nov 2006 07:57:19 -0800 (PST) Received: from mail-irva-12.broadcom.com (mail-irva-12.broadcom.com [10.10.64.146]) by mail-irva-8.broadcom.com (MOS 3.7.5a-GA) with ESMTP id ENZ45852; Thu, 30 Nov 2006 07:57:12 -0800 (PST) Received: from NT-IRVA-0750.brcm.ad.broadcom.com (nt-irva-0750 [10.8.194.64]) by mail-irva-12.broadcom.com (Postfix) with ESMTP id A31DB69CA3; Thu, 30 Nov 2006 07:57:12 -0800 (PST) X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Date: Thu, 30 Nov 2006 07:57:11 -0800 Message-ID: <09BFF2FA5EAB4A45B6655E151BBDD90302836BEB@NT-IRVA-0750.brcm.ad.broadcom.com> In-Reply-To: <04C71268DFDAA8499EC1A248A44B6A2B0855B143@Exchange21.EDU.epsb.ca> Thread-Topic: Broadcom (bce) support and POLLING Thread-Index: AccUlhTApjRb/6vGQ2+tHsgJiY19UgAAge4A From: "David Christensen" To: "Kirk Davis" , freebsd-net@freebsd.org X-WSS-ID: 697020D538014021605-01-01 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Cc: 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: Thu, 30 Nov 2006 16:03:20 -0000 Polling is not currently supported in the bce driver. Dave=20 > 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=20 > 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=20 > (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 > As another note... I added some Intel (em) cards into the box > and tested with them. Polling worked great on them but I was=20 > only able > to get about 200k packets per second before it starts=20 > dropping packets. > Is this about what I should expect? >=20 > [root@ ~]# uname -a > FreeBSD 6.2-RC1 FreeBSD 6.2-RC1 #2: Tue Nov 28 18:10:56 MST 2006 > root@:/usr/obj/usr/src/sys/INET-GW i386 >=20 > ---- Kirk >=20 >=20 >=20 > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >=20 >=20