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=-10.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, NICE_REPLY_A,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 7EEACC2B9F4 for ; Mon, 14 Jun 2021 22:07:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5B3CB61185 for ; Mon, 14 Jun 2021 22:07:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231288AbhFNWJ3 (ORCPT ); Mon, 14 Jun 2021 18:09:29 -0400 Received: from mail-1.ca.inter.net ([208.85.220.69]:50845 "EHLO mail-1.ca.inter.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229836AbhFNWJ2 (ORCPT ); Mon, 14 Jun 2021 18:09:28 -0400 Received: from mp-mx11.ca.inter.net (mp-mx11.ca.inter.net [208.85.217.19]) by mail-1.ca.inter.net (Postfix) with ESMTP id 2287C2EA47F; Mon, 14 Jun 2021 18:07:25 -0400 (EDT) Received: from mail-1.ca.inter.net ([208.85.220.69]) by mp-mx11.ca.inter.net (mp-mx11.ca.inter.net [208.85.217.19]) (amavisd-new, port 10024) with ESMTP id NBQX_U7RjRst; Mon, 14 Jun 2021 18:07:24 -0400 (EDT) Received: from [192.168.48.23] (host-45-58-219-4.dyn.295.ca [45.58.219.4]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: dgilbert@interlog.com) by mail-1.ca.inter.net (Postfix) with ESMTPSA id BA7CB2EA00E; Mon, 14 Jun 2021 18:07:24 -0400 (EDT) Reply-To: dgilbert@interlog.com Subject: Re: [PATCH 09/15] scsi: scsi_debug: Improve RDPROTECT/WRPROTECT handling To: "Martin K. Petersen" , linux-scsi@vger.kernel.org References: <20210609033929.3815-1-martin.petersen@oracle.com> <20210609033929.3815-10-martin.petersen@oracle.com> From: Douglas Gilbert Message-ID: <01c800ca-eeed-60d3-012a-4b4dd7cbf31b@interlog.com> Date: Mon, 14 Jun 2021 18:07:24 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20210609033929.3815-10-martin.petersen@oracle.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-CA Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org On 2021-06-08 11:39 p.m., Martin K. Petersen wrote: > It is useful for testing purposes to be able to inject errors by > writing bad protection information to media with checking disabled and > then attempting to read it back. Extend scsi_debug's PI verification > logic to give the driver feature parity with commercially available > drives. Almost all devices with PI capability support RDPROTECT and > WRPROTECT values of 0, 1, and 3. > > Signed-off-by: Martin K. Petersen Reviewed-by: Douglas Gilbert