From owner-freebsd-hackers@FreeBSD.ORG Fri Dec 10 15:42:15 2010 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 33ED01065698; Fri, 10 Dec 2010 15:42:15 +0000 (UTC) (envelope-from avg@freebsd.org) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id 29FC28FC18; Fri, 10 Dec 2010 15:42:13 +0000 (UTC) Received: from odyssey.starpoint.kiev.ua (alpha-e.starpoint.kiev.ua [212.40.38.101]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id RAA09743; Fri, 10 Dec 2010 17:42:12 +0200 (EET) (envelope-from avg@freebsd.org) Message-ID: <4D024A53.7010600@freebsd.org> Date: Fri, 10 Dec 2010 17:42:11 +0200 From: Andriy Gapon User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.12) Gecko/20101029 Lightning/1.0b2 Thunderbird/3.1.6 MIME-Version: 1.0 To: Alexander Motin References: <4D023D00.10301@FreeBSD.org> In-Reply-To: <4D023D00.10301@FreeBSD.org> X-Enigmail-Version: 1.1.2 Content-Type: text/plain; charset=windows-1251 Content-Transfer-Encoding: 7bit Cc: freebsd-hackers@freebsd.org Subject: Re: Where userland read/write requests, whcih is larger than MAXPHYS, are splitted? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Dec 2010 15:42:15 -0000 on 10/12/2010 16:45 Alexander Motin said the following: > by default. Many SCSI drivers still limited by DFLTPHYS - 64K. Including the cases where MAXBSIZE is abused because it historically has the same value. -- Andriy Gapon