From owner-freebsd-current@FreeBSD.ORG Sun Jul 4 11:51:38 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7DB711065670 for ; Sun, 4 Jul 2010 11:51:38 +0000 (UTC) (envelope-from mavbsd@gmail.com) Received: from mail-fx0-f54.google.com (mail-fx0-f54.google.com [209.85.161.54]) by mx1.freebsd.org (Postfix) with ESMTP id 06C628FC1F for ; Sun, 4 Jul 2010 11:51:37 +0000 (UTC) Received: by fxm13 with SMTP id 13so3433175fxm.13 for ; Sun, 04 Jul 2010 04:51:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:sender:message-id:date:from :user-agent:mime-version:to:cc:subject:references:in-reply-to :x-enigmail-version:content-type:content-transfer-encoding; bh=n+mKiDzWgnaIViKt0auLOnqF+R2jxILWUIKnyFnrZjs=; b=LyMoc6iVeXAgF7gMp0p6pyZniI+S+jpGSd9arNgjF8pkN1isfB6jwf5iJu1BMDWpuV aNkqlDtpfG2NUF/+kR0bUpmJ86JWgCEbgyMJwNh5rpAUx4Lqf+XwkcqWu6pRuPI3ghky JYmbaLxGORdH2WCehEUHEmV1nF33AGgPh8FVc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:x-enigmail-version:content-type :content-transfer-encoding; b=MSOR80uyDwmXZOIs4phe/FS8gxPbxNuudBFk0YMMCrd+RteKUJ5OX0TyZQjYTtG3L3 eIKftarvlLcdUSLTYNi26QKTL+P8KTBAflMbouqvPDjyCN88f2FE6PyrO3Ek2vChD6Xx WbiFpt0MkAzaA8rgAdqrs0W6km7h/5bZkMa7I= Received: by 10.223.126.193 with SMTP id d1mr1044030fas.97.1278244290896; Sun, 04 Jul 2010 04:51:30 -0700 (PDT) Received: from mavbook.mavhome.dp.ua (pc.mavhome.dp.ua [212.86.226.226]) by mx.google.com with ESMTPS id w16sm6380189fao.46.2010.07.04.04.51.29 (version=SSLv3 cipher=RC4-MD5); Sun, 04 Jul 2010 04:51:30 -0700 (PDT) Sender: Alexander Motin Message-ID: <4C30758E.7080102@FreeBSD.org> Date: Sun, 04 Jul 2010 14:50:38 +0300 From: Alexander Motin User-Agent: Thunderbird 2.0.0.23 (X11/20091212) MIME-Version: 1.0 To: Daisuke Aoyama References: <6BC2B2FBAFFA4C26A46977F121B707E1@ad.peach.ne.jp> <4C2F4B67.3060201@FreeBSD.org> <10CB692CA3FE4A8992B250B7F35B243B@ad.peach.ne.jp> In-Reply-To: <10CB692CA3FE4A8992B250B7F35B243B@ad.peach.ne.jp> X-Enigmail-Version: 0.96.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: FreeBSD-Current Subject: Re: [Need Help]isboot (iSCSI boot driver) version 0.2.1 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 04 Jul 2010 11:51:38 -0000 Daisuke Aoyama wrote: >>> Notes/Known Issues/Limitations: >>> FreeBSD can't use transfer length > 64KB. >> >> Since 8.0 FreeBSD can use any transfer lengths. 64K is a safety limit >> for CAM SIMs that do not report maximum transfer size. If your driver >> supports bigger transactions (and even if not), you should fill maxio >> field in XPT_PATH_INQ response. > > I set maxio=1024*1024 in version 0.2.2. As a result, the request (each ccb) > have 256 blocks (128KB). I don't know why it is 128KB. 128KB is a default MAXPHYS value. You may rise it in your kernel if you want. I am successfully using 1MB MAXPHYS now. -- Alexander Motin