From owner-freebsd-hackers Sat Mar 25 12:50:57 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from mail-out2.apple.com (mail-out2.apple.com [17.254.0.51]) by hub.freebsd.org (Postfix) with ESMTP id 7419A37B936; Sat, 25 Mar 2000 12:50:51 -0800 (PST) (envelope-from justin@apple.com) Received: from mailgate1.apple.com (A17-128-100-225.apple.com [17.128.100.225]) by mail-out2.apple.com (8.9.3/8.9.3) with ESMTP id MAA15611; Sat, 25 Mar 2000 12:50:41 -0800 (PST) Received: from scv1.apple.com (scv1.apple.com) by mailgate1.apple.com (Content Technologies SMTPRS 4.1.5) with ESMTP id ; Sat, 25 Mar 2000 12:50:36 -0800 Received: from grinch ([17.219.158.67]) by scv1.apple.com (8.9.3/8.9.3) with SMTP id MAA08969; Sat, 25 Mar 2000 12:50:40 -0800 (PST) Message-Id: <200003252050.MAA08969@scv1.apple.com> To: hackers@freebsd.org, net@freebsd.org Subject: Re: Request for review (HW checksum patches) Date: Sat, 25 Mar 2000 12:49:07 -0800 From: "Justin C. Walker" Reply-To: justin@apple.com X-Mailer: Apple Mail (2.303) Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > From: Jonathan Lemon > Date: Sat, 25 Mar 2000 13:35:53 -0600 > To: net@FreeBSD.ORG, hackers@FreeBSD.ORG > Subject: Request for review (HW checksum patches) > X-Mailer: Mutt 1.0pre2i > Delivered-to: freebsd-net@freebsd.org > X-Loop: FreeBSD.org > > I have a set of patches which allows offloading checksums to > NICs which support it (right now, only the Alteon based cards). > The patch is at . This prompts a question on a related issue: there seems to be an increase in support of protocol operations on NICs (e.g., tickle/keep-alive support while the system is sleeping; IPSec; ...). Is there enough there to let us build a general mechanism for communication between stack and driver for this sort of thing (e.g., a "meta-data" slot in the packet header which points to an mbuf, or other structure, that contains the details)? We're currently trying to deal with this in Mac OS X, and it'd be nice to avoid having multiple wheels of different size and shape in the same source base. Regards, Justin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message