From owner-freebsd-hackers Mon Nov 13 18:26:48 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from portnoy.lbl.gov (portnoy.lbl.gov [131.243.2.11]) by hub.freebsd.org (Postfix) with ESMTP id 26FA337B4C5 for ; Mon, 13 Nov 2000 18:26:45 -0800 (PST) Received: (from jin@localhost) by portnoy.lbl.gov (8.11.1/8.11.1) id eAE2QiK14602; Mon, 13 Nov 2000 18:26:44 -0800 (PST) Date: Mon, 13 Nov 2000 18:26:44 -0800 (PST) From: Jin Guojun (DSD staff) Message-Id: <200011140226.eAE2QiK14602@portnoy.lbl.gov> To: bright@wintelcom.net Subject: Re: zero copy TCP Cc: hackers@FreeBSD.ORG Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Alfred wrote: > > I heard that zero copy TCP is already in FreeBSD, isn't it? > > I could not find any information in searching the entire website. > > Before I am going to spend some silly time working on it, > > I would like to know what is the status for "ZERO COPY TCP" in > > FreeBSD right now. > > If it already exists, how can I enable it (for 1500 MTU, not Jumbo Frame)? > > or someone is still working on it. > > It's not integrated into the source tree yet. What sort of zero > copy do you hope to accomplish? Sending files? Sending preloaded > data? Both, but I may do either way, depending on which way is easier. If we can directly DMA from a disk drive to a NIC, that will be great. If the current implementation requires preloaded buffer, that works. So, where can I look for the patch? Thanks, -Jin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message