From mboxrd@z Thu Jan 1 00:00:00 1970 From: Larry McVoy Subject: Re: TCP IP Offloading Interface Date: Sun, 13 Jul 2003 17:22:00 -0700 Sender: netdev-bounce@oss.sgi.com Message-ID: <20030714002200.GA24697@work.bitmover.com> References: <20030713004818.4f1895be.davem@redhat.com> <52u19qwg53.fsf@topspin.com> <20030713160200.571716cf.davem@redhat.com> <20030713233503.GA31793@work.bitmover.com> <20030713164003.21839eb4.davem@redhat.com> <20030713235424.GB31793@work.bitmover.com> <20030713165323.3fc2601f.davem@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Larry McVoy , roland@topspin.com, alan@storlinksemi.com, linux-kernel@vger.kernel.org, linux-net@vger.kernel.org, netdev@oss.sgi.com Return-path: To: "David S. Miller" Content-Disposition: inline In-Reply-To: <20030713165323.3fc2601f.davem@redhat.com> Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org On Sun, Jul 13, 2003 at 04:53:23PM -0700, David S. Miller wrote: > On Sun, 13 Jul 2003 16:54:24 -0700 > Larry McVoy wrote: > > > Every time I tried to push the page flip idea or offloading or any of > > that crap, Andy Bechtolsheim would tell "the CPUs will get faster faster > > than you can make that work". He was right. > > I really don't see why receive is so much of a big deal > compared to send, and we do a send side version of this > stuff already with zero problems. Hey, maybe it isn't, but could you please quantify the cost of the VM operations? How hard is that? -- --- Larry McVoy lm at bitmover.com http://www.bitmover.com/lm