Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753136AbdLEPtx (ORCPT ); Tue, 5 Dec 2017 10:49:53 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:34934 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752610AbdLEPtu (ORCPT ); Tue, 5 Dec 2017 10:49:50 -0500 Date: Tue, 5 Dec 2017 16:49:56 +0100 From: "gregkh@linuxfoundation.org" To: "Bean Huo (beanhuo)" Cc: Bart Van Assche , "linux-scsi@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" , "vinholikatti@gmail.com" Subject: Re: UFS utilities Message-ID: <20171205154956.GB6264@kroah.com> References: <95e2fba3abb6447ba741b6235dd2e375@SIWEX5A.sing.micron.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <95e2fba3abb6447ba741b6235dd2e375@SIWEX5A.sing.micron.com> User-Agent: Mutt/1.9.1 (2017-09-22) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 720 Lines: 23 On Tue, Dec 05, 2017 at 03:44:19PM +0000, Bean Huo (beanhuo) wrote: > Hi, greg k-h > > > > >So what UFS commands are you missing that you need to see implemented? > > > >And again, have you checked the different forks of the driver? > > > > Seems there is something misunderstood, I want to use UPIU, rather than CDB. > Maybe it is not possible based on current UFS stacks. Of course, exactly, > there is no missing SCSI command listed in UFS 2.1. Again, have you looked at the different forks out there? I bet you can already do this... If not, I'm sure simple patches should be able to add the missing functionality, it would be good to get a solid UFS driver one of these days in the tree :) thanks, greg k-h