From owner-freebsd-net Fri Aug 17 14:22:45 2001 Delivered-To: freebsd-net@freebsd.org Received: from ginsberg.uol.com.br (ginsberg.uol.com.br [200.231.206.26]) by hub.freebsd.org (Postfix) with ESMTP id 98C5937B405 for ; Fri, 17 Aug 2001 14:22:38 -0700 (PDT) (envelope-from tirloni@users.sourceforge.net) Received: from 200191083238-dial-user-UOL.acessonet.com.br (200191083238-dial-user-UOL.acessonet.com.br [200.191.83.238]) by ginsberg.uol.com.br (8.9.1/8.9.1) with ESMTP id SAA23390; Fri, 17 Aug 2001 18:20:35 -0300 (BRT) Date: Fri, 17 Aug 2001 18:22:19 -0300 (BRT) From: Giovanni Picoli Tirloni X-X-Sender: To: Alfred Perlstein Cc: Subject: Re: What is 'checksum offload'? In-Reply-To: <20010817012926.O38066@elvis.mu.org> Message-ID: <20010817181316.R370-100000@mink.ath.cx> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII 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 > > I'm in the process of translation release notes and have trouble > > understanding and thus interpreting the term 'checksum offload' which is > > a feature of nge(4) and lge(4) drivers. Does it mean that the > > controllers are able to compute TCP/IP checksums in hardware thus taking > > off load from CPU? Don't hesitate to tell me I'm stupid and this has > > nothing to do with TCP/IP :) > > Yes, that's the point of checksum offloading. Is there a FastEthernet card that has this feature? I'm not sure if it'd be all that useful since the throughput isn't as high as in gigabit ethernet but perhaps it has its uses in a CPU limited device. Just curious. -- Giovanni Pohl's law: Nothing is so good that somebody, somewhere, will not hate it. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message