From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 11 May 2002 23:09:02 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 11 May 2002 23:09:01 -0400 Received: from pizda.ninka.net ([216.101.162.242]:7629 "EHLO pizda.ninka.net") by vger.kernel.org with ESMTP id ; Sat, 11 May 2002 23:09:00 -0400 Date: Sat, 11 May 2002 19:56:34 -0700 (PDT) Message-Id: <20020511.195634.31204998.davem@redhat.com> To: ltd@cisco.com Cc: jgarzik@mandrakesoft.com, chen_xiangping@emc.com, linux-kernel@vger.kernel.org Subject: Re: Tcp/ip offload card driver From: "David S. Miller" In-Reply-To: <5.1.0.14.2.20020511114358.03cd6ab0@mira-sjcm-3.cisco.com> X-Mailer: Mew version 2.1 on Emacs 21.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: Lincoln Dale Date: Sat, 11 May 2002 11:53:33 +1000 for example, if TOE was supported in a driver (eg. /dev/toeN) which allowed user-space to mmap() into RAM (either on the card or main memory which the TOE card DMAs into/out-of). This is a very old concept, see UNET. But that is %100 outside the realm of the TCP on a card stuff. You don't even need firmware to do UNET, you just export the packet descriptor rings into userspace. Like I said, it's a "been there, done that" technology. Franks a lot, David S. Miller davem@redhat.com