From owner-cvs-all Mon Aug 5 9:34: 5 2002 Delivered-To: cvs-all@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 83EA837B400; Mon, 5 Aug 2002 09:33:59 -0700 (PDT) Received: from mail-green.research.att.com (mail-green.research.att.com [135.207.30.103]) by mx1.FreeBSD.org (Postfix) with ESMTP id E849443E6A; Mon, 5 Aug 2002 09:33:58 -0700 (PDT) (envelope-from fenner@research.att.com) Received: from alliance.research.att.com (alliance.research.att.com [135.207.26.26]) by mail-green.research.att.com (Postfix) with ESMTP id DB4D71E1CA; Mon, 5 Aug 2002 12:30:32 -0400 (EDT) Received: from windsor.research.att.com (windsor.research.att.com [135.207.26.46]) by alliance.research.att.com (8.8.7/8.8.7) with ESMTP id MAA29094; Mon, 5 Aug 2002 12:30:31 -0400 (EDT) From: Bill Fenner Received: (from fenner@localhost) by windsor.research.att.com (8.8.8+Sun/8.8.5) id JAA23557; Mon, 5 Aug 2002 09:30:32 -0700 (PDT) Message-Id: <200208051630.JAA23557@windsor.research.att.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII To: luigi@FreeBSD.org Subject: Re: cvs commit: src/sys/sys mbuf.h src/sys/kern uipc_mbuf.c Cc: archie@dellroad.org, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org References: <200208040536.g745aMb8037891@freefall.freebsd.org> <200208041715.g74HF6781436@arch20m.dellroad.org> <20020804103806.A11861@iguana.icir.org> Date: Mon, 5 Aug 2002 09:30:31 -0700 Versions: dmail (solaris) 2.4c/makemail 2.9d Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > + possibly, consider leaving some extra space at the beginning > of the cluster before passing it to the driver Is it usually a cluster being output, or a normal mbuf with the transport and IP headers chained to the cluster? m_prepend() already puts the header at the end of the mbuf via MH_ALIGN() to leave space to prepend more. If this is for forwarded packets, perhaps there should be a MEXT_ALIGN() function to put input packets at the end of the cluster? Bill To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message