From patchwork Thu Mar 23 11:55:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wenchao Hao X-Patchwork-Id: 666450 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 26C37C6FD1D for ; Thu, 23 Mar 2023 11:57:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231317AbjCWL5i (ORCPT ); Thu, 23 Mar 2023 07:57:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53984 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231183AbjCWL5U (ORCPT ); Thu, 23 Mar 2023 07:57:20 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 47D8735261; Thu, 23 Mar 2023 04:56:56 -0700 (PDT) Received: from kwepemm600012.china.huawei.com (unknown [172.30.72.57]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4Pj3dj110tzbcPB; Thu, 23 Mar 2023 19:53:45 +0800 (CST) Received: from build.huawei.com (10.175.101.6) by kwepemm600012.china.huawei.com (7.193.23.74) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Thu, 23 Mar 2023 19:56:52 +0800 From: Wenchao Hao To: "James E . J . Bottomley" , "Martin K . Petersen" , Douglas Gilbert , , CC: , , Subject: [PATCH 0/5]scsi:scsi_debug: Add error injection for single device Date: Thu, 23 Mar 2023 19:55:56 +0800 Message-ID: <20230323115601.178494-1-haowenchao2@huawei.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600012.china.huawei.com (7.193.23.74) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org The original error injection mechanism was based on scsi_host which could not inject fault for a single SCSI device. This patchset provides the ability to inject errors for a single SCSI device. Now we supports inject timeout errors, queuecommand errors, and hostbyte, driverbyte, statusbyte, and sense data for specific SCSI Command. The first patch add an sysfs interface to add and inquiry single device's error injection info; the second patch defined how to remove an injection which has been added. The following 3 patches use the injection info and generate the related error type. Wenchao Hao (5): scsi:scsi_debug: Add sysfs interface to manage scsi devices' error injection scsi:scsi_debug: Define grammar to remove added error injection scsi:scsi_debug: timeout command if the error is injected scsi:scsi_debug: Return failed value if the error is injected scsi:scsi_debug: set command's result and sense data if the error is injected drivers/scsi/scsi_debug.c | 296 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 296 insertions(+)