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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham 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 9CFA1C3F2D0 for ; Fri, 28 Feb 2020 09:16:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 72C4B246A2 for ; Fri, 28 Feb 2020 09:16:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726207AbgB1JQW (ORCPT ); Fri, 28 Feb 2020 04:16:22 -0500 Received: from mx2.suse.de ([195.135.220.15]:49714 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726063AbgB1JQW (ORCPT ); Fri, 28 Feb 2020 04:16:22 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 89F6BAC4A; Fri, 28 Feb 2020 09:16:20 +0000 (UTC) Subject: Re: [PATCH v7 31/38] sg: add sg_iosubmit_v3 and sg_ioreceive_v3 ioctls To: Douglas Gilbert , linux-scsi@vger.kernel.org Cc: martin.petersen@oracle.com, jejb@linux.vnet.ibm.com References: <20200227165902.11861-1-dgilbert@interlog.com> <20200227165902.11861-32-dgilbert@interlog.com> From: Hannes Reinecke Message-ID: <55a02453-1a6b-d873-1eb0-e3423c4539f1@suse.de> Date: Fri, 28 Feb 2020 10:16:19 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <20200227165902.11861-32-dgilbert@interlog.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org On 2/27/20 5:58 PM, Douglas Gilbert wrote: > Add ioctl(SG_IOSUBMIT_V3) and ioctl(SG_IORECEIVE_V3). These ioctls > are meant to be (almost) drop-in replacements for the write()/read() > async version 3 interface. They only accept the version 3 interface. > > See the webpage at: http://sg.danny.cz/sg/sg_v40.html > specifically the table in the section titled: "13 SG interface > support changes". > > If sgv3 is a struct sg_io_hdr object, suitably configured, then > res = write(sg_fd, &sgv3, sizeof(sgv3)); > and > res = ioctl(sg_fd, SG_IOSUBMIT_V3, &sgv3); > are equivalent. Dito for read() and ioctl(SG_IORECEIVE_V3). > > Signed-off-by: Douglas Gilbert > --- > drivers/scsi/sg.c | 77 +++++++++++++++++++++++++++++++++++++++++- > include/uapi/scsi/sg.h | 6 ++++ > 2 files changed, 82 insertions(+), 1 deletion(-) > Reviewed-by: Hannes Reinecke Cheers, Hannes -- Dr. Hannes Reinecke Teamlead Storage & Networking hare@suse.de +49 911 74053 688 SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer