From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David S. Miller" Subject: Re: Extremely slow network with e1000 & ip_conntrack Date: Thu, 4 Dec 2003 10:30:41 -0800 Sender: netfilter-devel-admin@lists.netfilter.org Message-ID: <20031204103041.21aefd8d.davem@redhat.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: mukansai@emailplus.org, laforge@netfilter.org, netfilter-devel@lists.netfilter.org, linux-kernel@vger.kernel.org Return-path: To: "Feldman, Scott" In-Reply-To: Errors-To: netfilter-devel-admin@lists.netfilter.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: List-Id: netfilter-devel.vger.kernel.org On Thu, 4 Dec 2003 09:37:19 -0800 "Feldman, Scott" wrote: > TSO is support on 82540. Turning off TSO is a workaround, but what's > behind the dependency of TSO and ip_conntrack? Netfilter wants to see the _real_ packets that will be sent onto the wire. TSO is a template by which to create such packets, not the real thing. So when and if we go into netfilter, we must un-TSO the packet so that netfilter can look at what it really wants to.