From owner-freebsd-ppc@freebsd.org Mon Oct 26 15:43:32 2015 Return-Path: <owner-freebsd-ppc@freebsd.org> Delivered-To: freebsd-ppc@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5CE9581A1 for <freebsd-ppc@mailman.ysv.freebsd.org>; Mon, 26 Oct 2015 15:43:32 +0000 (UTC) (envelope-from chmeeedalf@gmail.com) Received: from mail-ig0-x22f.google.com (mail-ig0-x22f.google.com [IPv6:2607:f8b0:4001:c05::22f]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 2330F11D5 for <freebsd-ppc@freebsd.org>; Mon, 26 Oct 2015 15:43:32 +0000 (UTC) (envelope-from chmeeedalf@gmail.com) Received: by igbkq10 with SMTP id kq10so61476789igb.0 for <freebsd-ppc@freebsd.org>; Mon, 26 Oct 2015 08:43:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=x1dfdaaO2oeaOuTYMxq/NILstzIod5Mh2v+ff1Hkc6k=; b=IU1XHY7twU81ntt7gg+BAGvZ11WPPEcIn1zT2tZFfmw/YXdjW+DAIgSPIM0kwOcZsU pPZS7M72j1mJb/Jnd47AuyH7bH5moXrQXKGAp4f76wN7yHbc1Qe1lqRib0U/PS6MZ/xF h82KlUO/E0CYHxN9ycPhPFyxgUWjJPF7nqZT9+D1wX0QfaE0+uFhaZEy7yPSS58nAiaw YffYAdErezBVpj6oyHe1X/V5em28PVaoz+B0anuWKSVpTov7GJpY5Tfnnew5DhsIE2N4 qeHzcZhSOrJ3D321umrfnIr7+i/RmgI4Vx4qDkZ1pTRSTDeh3BjwR1V5XPicTc0TA4pK DrqQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alumni_cwru_edu.20150623.gappssmtp.com; s=20150623; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=x1dfdaaO2oeaOuTYMxq/NILstzIod5Mh2v+ff1Hkc6k=; b=RxuV5ADPpXZsXPI34y26K/9+zagnfP6Gkz6YDLFfDd3ZaiYtyglnLhunulfz3UOmzC vhlwl++5DjgwHp9ex5f8JSi0XKsVS8iiwmebP7aTaHbG8o2sj9PikqP8dfh+gts+AFhq NzK0HtBlf84g/vjiSnjX3soGWX8uRoM1HTQ6Ty597ih3k00ISqH7pzINVd/V+Yx35Uo5 HQSr9rfWYKIWEzRvw/uI4Uhu5l+WRh2PXISIwakuSgXVIjj4migHARNLqNhMKVtBTIhL lsIMD7KpUOgCmh4YsY/nrJlJZBToNa+4ZQ8AFMfcOjP+0UHaBGc7VZLjnLhPVhnSUoOq Qx6A== MIME-Version: 1.0 X-Received: by 10.50.79.170 with SMTP id k10mr19192483igx.17.1445874211465; Mon, 26 Oct 2015 08:43:31 -0700 (PDT) Sender: chmeeedalf@gmail.com Received: by 10.36.41.138 with HTTP; Mon, 26 Oct 2015 08:43:31 -0700 (PDT) In-Reply-To: <5626B57E.2030608@codelibre.net> References: <5626B57E.2030608@codelibre.net> Date: Mon, 26 Oct 2015 10:43:31 -0500 X-Google-Sender-Auth: ori1R_0DisA3N9stVpePEK_QFLY Message-ID: <CAHSQbTAnTGpvTgBJ=kVhR9jTsKGKLbaXJhoqLExnBoJ9LcgALQ@mail.gmail.com> Subject: Re: Running a PPC system over FireWire from second machine From: Justin Hibbits <jrh29@alumni.cwru.edu> To: Roger Leigh <rleigh@codelibre.net> Cc: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org> Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-ppc@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Porting FreeBSD to the PowerPC <freebsd-ppc.freebsd.org> List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-ppc>, <mailto:freebsd-ppc-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-ppc/> List-Post: <mailto:freebsd-ppc@freebsd.org> List-Help: <mailto:freebsd-ppc-request@freebsd.org?subject=help> List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-ppc>, <mailto:freebsd-ppc-request@freebsd.org?subject=subscribe> X-List-Received-Date: Mon, 26 Oct 2015 15:43:32 -0000 Hi, On Tue, Oct 20, 2015 at 4:43 PM, Roger Leigh <rleigh@codelibre.net> wrote: > I found this > https://forums.freebsd.org/threads/target-mode-firewire-but-not-so-specifically.30997/ > but it's a few years old and possibly incorrect even then. > > What I'd like to do is put a FireWire card in my FreeBSD NAS, and then > export a ZVOL on a specific FireWire port in target mode so that it can be > used as a raw block device on a Mac Mini as its root filesystem. This will > have the advantage of being faster than the internal 2.5" IDE HDD and also > having the ability to take snapshots and backups from the NAS system. > > I was curious to know if this was technically possible, and if so if anyone > had done this and had success? > > Is there any limitation on this if so? Are both 400 and 800 ports > bidirectional in this manner? I have 400-400 and 400-800 cables, so I could > use either on the target (the Mac Mini is 400 only). Before I purchase any > hardware, I want to be certain this would work out. > > > Thanks all, > Roger It should be technically feasible. I've never done this, so can't say for certain, but I did play around with exporting a file over firewire, with minimal success (didn't try too hard, either). The Mac Mini should just see a block device, and perform normal I/O to it, which the target endpoint would handle. I would recommend getting a PCIe dual 800/400 firewire card, and using the 400 port. I did find a minipcie firewire card on amazon, but it's rather expensive at $95 (full sized PCIe is probably cheaper). - Justin