From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42056) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dKPqk-0007Vy-W0 for qemu-devel@nongnu.org; Mon, 12 Jun 2017 09:57:47 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dKPqg-00024b-5u for qemu-devel@nongnu.org; Mon, 12 Jun 2017 09:57:47 -0400 Date: Mon, 12 Jun 2017 10:05:31 -0400 From: Keith Busch Message-ID: <20170612140530.GA23969@localhost.localdomain> References: <20170602135151.GB4948@noname.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170602135151.GB4948@noname.redhat.com> Subject: Re: [Qemu-devel] [Qemu-block] NVME: is there any plan to support SGL data transfer? List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Kevin Wolf Cc: Qu Wenruo , qemu-devel@nongnu.org, qemu-block@nongnu.org On Fri, Jun 02, 2017 at 03:51:51PM +0200, Kevin Wolf wrote: > Am 02.06.2017 um 03:47 hat Qu Wenruo geschrieben: > > When going through NVMe specification and hw/block/nvme.c, > > I found that it seems that NVMe qemu implementation only support PRP > > for sq entry. > > And NvmeRwCmd doesn't even use union to define DPTR, but just prp1 and prp2. > > > > Although I am just a newbie, but I'm quite interested in NVMe and > > want to try to implement SGL support for qemu NVMe. > > > > Is there anyone already doing such work? Or is there any plan on > > implement such feature? > > Keith, you can probably answer this? Hi, I personally have no plans to implement it, but would be happy to see it added if someone wants to send the patch for review. Thanks, Keith