From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shaohua Li Subject: Re: [PATCH v2 3/3] libata: use blk taging Date: Fri, 9 Jan 2015 14:12:09 -0800 Message-ID: <20150109221209.GA1851286@devbig257.prn2.facebook.com> References: <546516bb62c91671b1464e6a7c68eebc8422efe5.1418928090.git.shli@fb.com> <20150109181529.GA1301458@devbig257.prn2.facebook.com> <20150109214307.GE2785@htj.dyndns.org> <20150109215919.GA1826518@devbig257.prn2.facebook.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Return-path: Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:62197 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751554AbbAIWRl (ORCPT ); Fri, 9 Jan 2015 17:17:41 -0500 Content-Disposition: inline In-Reply-To: <20150109215919.GA1826518@devbig257.prn2.facebook.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Tejun Heo , dan.j.williams@intel.com Cc: linux-ide@vger.kernel.org, Kernel-team@fb.com, Jens Axboe , Christoph Hellwig On Fri, Jan 09, 2015 at 01:59:19PM -0800, Shaohua Li wrote: > On Fri, Jan 09, 2015 at 04:43:07PM -0500, Tejun Heo wrote: > > On Fri, Jan 09, 2015 at 10:15:29AM -0800, Shaohua Li wrote: > > > Ping! > > > > I like the idea but it bothers me that we end up with two separate > > ways of allocating command tags. Any chance the old one can be > > removed? Oh, sorry, my reply truncated. So I checked with IPR driver guys, the ipr doesn't use ncq, so we can always use sata tag 0, but not sure for libsas. Maybe Dan can answer if there is a way we can map SCSI tag to SATA tag. Thanks, Shaohua