From owner-freebsd-current Tue Dec 3 23:29: 0 2002 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9C23737B401; Tue, 3 Dec 2002 23:28:59 -0800 (PST) Received: from imrelay-2.zambeel.com (imrelay-2.zambeel.com [209.240.48.8]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2FC1A43EC2; Tue, 3 Dec 2002 23:28:59 -0800 (PST) (envelope-from manish@Zambeel.com) Received: from XCHANGE.win.zambeel.com (pool114.zambeel.com [192.168.222.114]) by imrelay-2.zambeel.com (8.11.0/2.4.0) with ESMTP id gB47n8612891; Tue, 3 Dec 2002 23:49:09 -0800 Received: by xch-a.win.zambeel.com with Internet Mail Service (5.5.2653.19) id ; Tue, 3 Dec 2002 23:28:43 -0800 Message-ID: <233C89823A37714D95B1A891DE3BCE5202AB1A87@xch-a.win.zambeel.com> From: Manish Lachwani To: "'jlemon@freebsd.org'" , "'freebsd-current@freebsd.org'" Cc: Manish Lachwani Subject: Regarding UDP checksum offloading in FreeBSD current and ACENIC . .. Date: Tue, 3 Dec 2002 23:28:38 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hello, I read the document: http://people.freebsd.org/~jlemon/csum.txt. I looked at the tigon2 driver in freebsd-current and it has CSUM_IP_FRAGS in its features. Since the driver/firmware supports checksumming of fragmented packets, I would assume that he kernel passes the first and last fragment and leaves the checksumming to the firmware. I sthis a right assumption? Also, which NICs support CSUM_FRAGMENT? Thanks Manish To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message