From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55327) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZSxLE-0001t1-IF for qemu-devel@nongnu.org; Fri, 21 Aug 2015 21:11:29 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZSxLA-00039U-If for qemu-devel@nongnu.org; Fri, 21 Aug 2015 21:11:28 -0400 Received: from s16892447.onlinehome-server.info ([82.165.15.123]:38467) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZSxLA-00035W-DE for qemu-devel@nongnu.org; Fri, 21 Aug 2015 21:11:24 -0400 Message-ID: <55D7CC27.1080901@ilande.co.uk> Date: Sat, 22 Aug 2015 02:11:03 +0100 From: Mark Cave-Ayland MIME-Version: 1.0 References: <1438448070-32552-1-git-send-email-mark.cave-ayland@ilande.co.uk> <20150801183337.GA10456@aurel32.net> <55CD1430.5060107@ilande.co.uk> <55D77646.3010807@redhat.com> In-Reply-To: <55D77646.3010807@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCHv2] macio: handle non-block ATAPI DMA transfers the same as block DMA transfers List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: John Snow , Aurelien Jarno Cc: agraf@suse.de, qemu-devel@nongnu.org On 21/08/15 20:04, John Snow wrote: (lots cut) > Do you want to resend the V3 here directly to the ML with Aurelien > Jarno's R-B? I was actually looking at this yesterday, and it seems with some more testing that only the DBDMA flush part is required. It could be that fixing the flush semantics prevents the macio device getting into the incorrect state that makes the macio patch necessary in the first place. In this case the DBDMA patch should probably go via Alex since it's fairly specific to the Mac DMA hardware rather than being related just to the IDE interface. ATB, Mark.