From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6E0C9C433E2 for ; Thu, 18 Jun 2020 15:28:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 577DE2075E for ; Thu, 18 Jun 2020 15:28:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731517AbgFRP2z (ORCPT ); Thu, 18 Jun 2020 11:28:55 -0400 Received: from verein.lst.de ([213.95.11.211]:49661 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731495AbgFRP2v (ORCPT ); Thu, 18 Jun 2020 11:28:51 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id 52D876736F; Thu, 18 Jun 2020 17:28:48 +0200 (CEST) Date: Thu, 18 Jun 2020 17:28:48 +0200 From: Christoph Hellwig To: John Garry Cc: Christoph Hellwig , martin.petersen@oracle.com, brking@us.ibm.com, jinpu.wang@cloud.ionos.com, mpe@ellerman.id.au, linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org Subject: Re: fix ATAPI support for libsas drivers Message-ID: <20200618152848.GA30919@lst.de> References: <20200615064624.37317-1-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-ide-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ide@vger.kernel.org On Thu, Jun 18, 2020 at 10:02:58AM +0100, John Garry wrote: > On 15/06/2020 07:46, Christoph Hellwig wrote: >> Hi all, >> >> this series fixes the ATAPI DMA drain refactoring for SAS HBAs that >> use libsas. >> . >> > > Something I meant to ask before and was curious about, specifically since > ipr doesn't actually use libsas: Why not wire up other SAS HBAs, like > megaraid_sas? megaraid_sas and mpt3sas don't use the libata code at all. ipr actually is a special case and uses libata directly instead of libsas (something I hadn't realized, but which doesn't change anything for the patches itself, just possibly the commit log).