From owner-freebsd-net Thu Oct 17 21:55:47 2002 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 56B8737B401 for ; Thu, 17 Oct 2002 21:55:46 -0700 (PDT) Received: from carp.icir.org (carp.icir.org [192.150.187.71]) by mx1.FreeBSD.org (Postfix) with ESMTP id 99F1143E9E for ; Thu, 17 Oct 2002 21:55:45 -0700 (PDT) (envelope-from rizzo@carp.icir.org) Received: from carp.icir.org (localhost [127.0.0.1]) by carp.icir.org (8.12.3/8.12.3) with ESMTP id g9I4thpJ076389; Thu, 17 Oct 2002 21:55:43 -0700 (PDT) (envelope-from rizzo@carp.icir.org) Received: (from rizzo@localhost) by carp.icir.org (8.12.3/8.12.3/Submit) id g9I4thFp076388; Thu, 17 Oct 2002 21:55:43 -0700 (PDT) (envelope-from rizzo) Date: Thu, 17 Oct 2002 21:55:43 -0700 From: Luigi Rizzo To: Jim McGrath Cc: Petri Helenius , Lars Eggert , freebsd-net@FreeBSD.ORG Subject: Re: ENOBUFS Message-ID: <20021017215543.B76232@carp.icir.org> References: <20021017201158.A75351@carp.icir.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from jimmcgra@bellatlantic.net on Fri, Oct 18, 2002 at 12:49:04AM -0400 Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Fri, Oct 18, 2002 at 12:49:04AM -0400, Jim McGrath wrote: > Careful here. Read the errata sheet!! I do not believe the em driver uses > these parameters, and possibly for a good reason. as if i had access to the data sheets :) cheers luigi > Jim > > > -----Original Message----- > > From: owner-freebsd-net@FreeBSD.ORG > > [mailto:owner-freebsd-net@FreeBSD.ORG]On Behalf Of Luigi Rizzo > > Sent: Thursday, October 17, 2002 11:12 PM > > To: Petri Helenius > > Cc: Lars Eggert; freebsd-net@FreeBSD.ORG > > Subject: Re: ENOBUFS > > > > > > On Thu, Oct 17, 2002 at 11:55:24PM +0300, Petri Helenius wrote: > > ... > > > I seem to get about 5-6 packets on an interrupt. Is this tunable? At > > > > just reading the source code, yes, it appears that the card has > > support for delayed rx/tx interrupts -- see RIDV and TIDV definitions > > and usage in sys/dev/em/* . I don't know in what units are the values > > (28 and 128, respectively), but it does appear that tx interrupts are > > delayed a bit more than rx interrupts. > > > > They are not user-configurable at the moment though, you need to rebuild > > the kernel. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message