From owner-freebsd-hackers Wed Sep 26 18:52:12 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from hotmail.com (f147.law3.hotmail.com [209.185.241.147]) by hub.freebsd.org (Postfix) with ESMTP id ADC9037B42C for ; Wed, 26 Sep 2001 18:52:09 -0700 (PDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 26 Sep 2001 18:40:39 -0700 Received: from 205.158.104.176 by lw3fd.law3.hotmail.msn.com with HTTP; Thu, 27 Sep 2001 01:40:38 GMT X-Originating-IP: [205.158.104.176] From: "Srinivas Dharmasanam" To: freebsd-hackers@freebsd.org Subject: Re: TCP&IP cksum offload on FreeBSD 4.2 Date: Wed, 26 Sep 2001 18:40:38 -0700 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 27 Sep 2001 01:40:39.0325 (UTC) FILETIME=[69745CD0:01C146F5] Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hello, I'm trying to use the TCP&IP checksum offload capability of the Netgear GA620 NIC from a SMP FreeBSD 4.2R system running on a typical PIII SBC. I did enable TCP&IP cksum offload for receive operations by setting the if_hwassist flag in the driver /sys/pci/if_ti.c and verified that it is working. However I'm unable to offload TCP&IP checksum for the send operations. For the send operation, I see that the kernel is still doing the TCP and IP checksum calculations although the driver has the hw_assist flag set. Can you please let me know what else needs to be done to offload TCP and IP checksum for both rcv/send operations on the Tigon2 NIC? Thanks, -Srinivas _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message